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1
FEATURES
APPLICATIONS
DESCRIPTION
PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
STEREO AUDIO CODEC WITH USB INTERFACE,SINGLE-ENDED ANALOG INPUT/OUTPUT AND S/PDIF
234
•PCM2901: Without S/PDIF •Stereo DAC•PCM2903: With S/PDIF – Analog Performance at V
CCC
= V
CCP1
= V
CCP2= V
CCX
= V
DD
= 3.3 V•On-Chip USB Interface
– THD+N = 0.005%– With Full-Speed Transceivers
– SNR = 96 dB– Fully Compliant With USB 1.1 Specification
– Dynamic Range = 93 dB– Certified by USB-IF
– Oversampling Digital Filter– Partially Programmable Descriptors
(1)
– Pass-Band Ripple = ± 0.1 dB– USB Adaptive Mode for Playback
– Stop-Band Attenuation = – 43 dB– USB Asynchronous Mode for Record
– Single-Ended Voltage Output– Self-Powered
– Analog LPF Included•16-Bit Delta-Sigma ADC and DAC
•Multifunctions•Sampling Rates
– Human Interface Device (HID) Volume ±– DAC: 32, 44.1, 48 kHz
Control and Mute Control– ADC: 8, 11.025, 16, 22.05, 32, 44.1, 48 kHz
– Suspend Flag•On-Chip Clock Generator With Single 12-MHz
•Package: 28-Pin SSOPClock Source•Single Power Supply: 3.3 V Typical•Stereo ADC
•USB Audio Speaker– Analog Performance at V
CCC
= V
CCP1
= V
CCP2
•USB Headset= V
CCX
= V
DD
= 3.3 V
•USB Monitor– THD+N = 0.01%
•USB Audio Interface Box– SNR = 89 dB– Dynamic Range = 89 dB– Decimation Digital Filter
The PCM2901/2903 is TI's single-chip USB stereo– Pass-Band Ripple = ± 0.05 dB audio codec with USB-compliant full-speed protocolcontroller and S/PDIF (only PCM2903). The USB– Stop-Band Attenuation = – 65 dB
protocol controller works with no software code, but– Single-Ended Voltage Input
the USB descriptors can be modified in some areas– Antialiasing Filter Included
(for example, vendor ID/product ID). ThePCM2901/2903 employs SpAct™ architecture, TI's– Digital LCF Included
unique system that recovers the audio clock fromUSB packet data. On-chip analog PLLs with SpActenable playback and record with low clock jitter andwith independent playback and record sampling(1) The descriptor can be modified by changing a mask. rates.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications ofTexas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2SpAct is a trademark of Texas Instruments.3System Two, Audio Precision are trademarks of Audio Precision, Inc.4All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2002 – 2007, Texas Instruments IncorporatedProducts conform to specifications per the terms of the TexasInstruments standard warranty. Production processing does notnecessarily include testing of all parameters.
www.ti.com
ABSOLUTE MAXIMUM RATINGS
PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled withappropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be moresusceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
ORDERING INFORMATION
PCM2901
SPECIFIEDPACKAGE PACKAGE ORDERING TRANSPORTPRODUCT PACKAGE-LEAD TEMPERATUREDESIGNATOR MARKING NUMBER
(1)
MEDIARANGE
PCM2901E RailsPCM2901E SSOP-28 28DB – 25 °C to 85 °C PCM2901E
PCM2903E/2K Tape and reel
(1) Models with a slash (/) are available only in tape and reel in the quantities indicated (e.g., /2K indicates 2000 devices per reel). Ordering2000 pieces of PCM2901E/2K gets a single 2000-piece tape and reel.
PCM2903
SPECIFIEDPACKAGE PACKAGE ORDERING TRANSPORTPRODUCT PACKAGE-LEAD TEMPERATUREDESIGNATOR MARKING NUMBER
(1)
MEDIARANGE
PCM2903E RailsPCM2903E SSOP-28 28DB – 25 °C to 85 °C PCM2903E
PCM2903E/2K Tape and reel
(1) Models with a slash (/) are available only in tape and reel in the quantities indicated (e.g., /2K indicates 2000 devices per reel). Ordering2000 pieces of PCM2903E/2K gets a single 2000-piece tape and reel.
over operating free-air temperature range (unless otherwise noted)
(1)
PCM2901/PCM2903 UNIT
Supply voltage, V
CCC
, V
CCP1
, V
CCP2
, V
CCX
, V
DD
– 0.3 to 4 VSupply voltage differences, V
CCC
, V
CCP1
, V
CCP2
, V
CCX
, V
DD
± 0.1 VGround voltage differences, AGNDC, AGNDP, AGNDX, DGND, DGNDU ± 0.1 VSEL0, SEL1, TEST0 (DIN)
(2)
– 0.3 to 6.5 VDigital input voltage
D+, D – , HID0, HID1, HID2, XTI, XTO, TEST1 (DOUT)
(2)
, SSPND – 0.3 to (V
DD
+ 0.3) < 4 VAnalog input voltage V
IN
L, V
IN
R, V
COM
, V
OUT
R, V
OUT
L – 0.3 to (V
CCC
+ 0.3) < 4 VInput current (any pins except supplies) ± 10 mAAmbient temperature under bias – 40 to 125 °CStorage temperature, T
stg
– 55 to 150 °CJunction temperature T
J
150 °CLead temperature (soldering) 260 °C, 5 sPackage temperature (IR reflow, peak) 250 °C
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratingsonly, and functional operation of the device at these or any other conditions beyond those indicated under recommended operatingconditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.(2) ( ): PCM2903
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Product Folder Link(s): PCM2901 PCM2903
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ELECTRICAL CHARACTERISTICS
PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
all specifications at T
A
= 25 °C, V
CCC
= V
CCP1
= V
CCP2
= V
CCX
= V
DD
= 3.3 V, f
S
= 44.1 kHz, f
IN
= 1 kHz, 16-bit data, unlessotherwise noted
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
DIGITAL INPUT/OUTPUT
Host interface Apply USB Revision 1.1, full speedAudio data format USB isochronous data format
INPUT LOGIC
D+, D – 2 V
DD
XTI, HID0, HID1, and HID2 0.7 V
DD
V
DDHigh-level inputV
IH
VDCvoltage
SEL0, SEL1 2 5.25DIN (PCM2903) 0.7 V
DD
5.25D+, D – V
DD
0.8XTI, HID0, HID1, and HID2 0.3 V
DDLow-level inputV
IL
VDCvoltage
SEL0, SEL1 0.8DIN (PCM2903) 0.3 V
DD
D+, D – , XTI, SEL0, SEL1 V
IN
= 3.3 V ± 10High-level inputI
IH
HID0, HID1, and HID2 V
IN
= 3.3 V 50 80 µAcurrent
DIN (PCM2903) V
IN
= 3.3 V 65 100D+, D – , XTI, SEL0, SEL1 V
IN
= 0 V ± 10Low-level inputI
IL
HID0, HID1, and HID2 V
IN
= 0 V ± 10 µAcurrent
DIN (PCM2903) V
IN
= 0 V ± 10
OUTPUT LOGIC
D+, D – 2.8High-level outputV
OH
DOUT (PCM2903) I
OH
= – 4 mA 2.8 VDCvoltage
SSPND I
OH
= – 2 mA 2.8D+, D – 0.3Low-level outputV
OL
DOUT (PCM2903) I
OL
= 4 mA 0.5 VDCvoltage
SSPND I
OL
= 2 mA 0.5
CLOCK FREQUENCY
Input clock frequency, XTI 11.994 12 12.006 MHz
Copyright © 2002 – 2007, Texas Instruments Incorporated Submit Documentation Feedback 3
Product Folder Link(s): PCM2901 PCM2903
www.ti.com
ELECTRICAL CHARACTERISTICS
PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
All specifications at T
A
= 25 °C, V
CCC
= V
CCP1
= V
CCP2
= V
CCX
= V
DD
= 3.3 V, f
S
= 44.1 kHz, f
IN
= 1 kHz, 16-bit data, unlessotherwise noted
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
ADC CHARACTERISTICS
Resolution 8, 16 bitsAudio data channel 1, 2 channel
Clock Frequency
f
S
Sampling frequencies 8, 11.025, 16, 22.05, 32, 44.1, 48 kHz
DC Accuracy
Gain mismatch, channel-to-channel ± 1 ± 5 % of FSRGain error ± 2 ± 10 % of FSRBipolar zero error ± 0 % of FSR
Dynamic Performance
(1)
V
IN
= – 0.5 dB 0.01% 0.02%THD+N Total harmonic distortion plus noise
V
IN
= – 60 dB 5%Dynamic range A-weighted 81 89 dBSNR Signal-to-noise ratio A-weighted 81 89 dBChannel separation 80 85 dB
Analog Input
Input voltage 0.6 V
CCC
Vp-pCenter voltage 0.5 V
CCC
VInput impedance 30 k Ω
– 3 dB 150 kHzAntialising filter frequency response
f
IN
= 20 kHz – 0.08 dB
Digital Filter Performance
Pass band 0.454 f
S
HzStop band 0.563 f
S
HzPass-band ripple ± 0.05 dBStop-band attenuation – 65 dBt
d
Delay time 17.4/f
S
sLCF frquency response – 3 dB 0.078 f
S
MHz
(1) f
IN
= 1 kHz, using a System Two™ audio measurement system by Audio Precision™ in RMS mode with a 20-kHz LPF and 400-Hz HPFin the calculation.
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Product Folder Link(s): PCM2901 PCM2903
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ELECTRICAL CHARACTERISTICS
PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
all specifications at T
A
= 25 °C, V
CCC
= V
CCP1
= V
CCP2
= V
CCX
= V
DD
= 3.3 V, f
S
= 44.1 kHz, f
IN
= 1 kHz, 16-bit data, unlessotherwise noted
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
DAC CHARACTERISTICS
Resolution 8, 16 bitsAudio data channel 1, 2 channel
Clock Frequency
f
S
Sampling frequencies 32, 44.1, 48 kHz
DC Accuracy
Gain mismatch channel-to-channel ± 1 ± 5 % of FSRGain error ± 2 ± 10 % of FSRBipolar zero error ± 2 % of FSR
Dynamic Performance
(1)
V
OUT
= 0 dB 0.005% 0.016%THD+N Total harmonic distortion plus noise
V
OUT
= – 60 dB 3%Dynamic range EIAJ, A-weighted 87 93 dBSNR Signal-to-noise ratio EIAJ, A-weighted 90 96 dBChannel separation 86 92 dB
Analog Output
V
O
Output voltage 0.6 V
CCC
Vp-pCenter voltage 0.5 V
CCC
VLoad impedance AC coupling 10 k Ω
– 3 dB 250 kHzLPF frequency response
f = 20 kHz – 0.03 dB
Digital Filter Performance
Pass band 0.445 f
S
HzStop band 0.555 f
S
HzPass-band ripple ± 0.1 dBStop-band attenuation – 43 dBt
d
Delay time 14.3/f
S
s
POWER SUPPLY REQUIREMENTS
Voltage range (V
DD
, V
CCC
, V
CCP1
, V
CCP2
, V
CCX
) 3 3.3 3.6 VDCADC, DAC operation 54 70 mASupply current
Suspend mode
(2)
210 µAADC, DAC operation 178 252P
D
Power dissipation mWSuspend mode
(2)
0.69
TEMPERATURE RANGE
Operaton temperature – 25 85 °Cθ
JA
Thermal resistance 100 °C/W
(1) f
OUT
= 1 kHz, using a System Two audio measuerment system by Audio Precision in RMS mode with a 20-kHz LPF and 400-Hz HPF.(2) Under USB suspend state
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Product Folder Link(s): PCM2901 PCM2903
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PIN ASSIGNMENTS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
D+
D–
VBUS
DGNDU
HID0
HID1
HID2
SEL0
SEL1
VCCC
AGNDC
V L
IN
V R
IN
VCOM
SSPND
TEST0
VCCX
AGNDX
XTO
VCCP2
DGND
VCCP1
V L
OUT
XTI
TEST1
VDD
AGNDP
V R
OUT
PCM2901
(TopView)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
D+
D–
VBUS
DGNDU
HID0
HID1
HID2
SEL0
SEL1
VCCC
AGNDC
V L
IN
V R
IN
VCOM
SSPND
DIN
VCCX
AGNDX
XTO
VCCP2
DGND
VCCP1
V L
OUT
XTI
DOUT
VDD
AGNDP
V R
OUT
P0007-07
PCM2903
(TopView)
PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
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PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
PCM2901 TERMINAL FUNCTIONS
TERMINAL
I/O DESCRIPTIONNAME NO.
AGNDC 11 – Analog ground for codecAGNDP 18 – Analog ground for PLLAGNDX 22 – Analog ground for oscillatorD – 2 I/O USB differential input/output minus
(1)
D+ 1 I/O USB differential input/output plus
(1)
DGND 26 – Digital groundDGNDU 4 – Digital ground for USB transceiverHID0 5 I HID key state input (mute), active-high
(2)
HID1 6 I HID key state input (volume up), active-high
(2)
HID2 7 I HID key state input (volume down), active-high
(2)
SEL0 8 I Must be set to high
(3)
SEL1 9 I Connected to the USB port of V
BUS
(3)
SSPND 28 O Suspend flag, active-low (Low: suspend, High: operational)TEST0 24 I Test pin, must be connected to GNDTEST1 25 O Test pin, must be left openV
BUS
3 – Must be connected to V
DD
V
CCC
10 – Analog power supply for codec
(4)
V
CCP1
17 – Analog power supply for PLL
(4)
V
CCP2
19 – Analog power supply for PLL
(4)
V
CCX
23 – Analog power supply for oscillator
(4)
V
COM
14 – Common for ADC/DAC (V
CCC
/2)
(4)
V
DD
27 – Digital power supply
(4)
V
IN
L 12 I ADC analog input for L-channelV
IN
R 13 I ADC analog input for R-channelV
OUT
L 16 O DAC analog output for L-channelV
OUT
R 15 O DAC analog output for R-channelXTI 21 I Crystal oscillator input
(5)
XTO 20 O Crystal oscillator output
(1) LV-TTL level(2) 3.3-V CMOS-level input with internal pulldown. This pin informs the PC of serviceable control signals such as mute, volume up, orvolume down, which have no direct connection with the internal DAC or ADC. See the Interface #3 and End-Points sections.(3) TTL Schmitt trigger, 5-V tolerant(4) Connect a decoupling capacitor to GND.(5) 3.3-V CMO- level input
Copyright © 2002 – 2007, Texas Instruments Incorporated Submit Documentation Feedback 7
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PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
PCM2903 TERMINAL FUNCTIONS
TERMINAL
I/O DESCRIPTIONNAME NO.
AGNDC 11 – Analog ground for codecAGNDP 18 – Analog ground for PLLAGNDX 22 – Analog ground for oscillatorD – 2 I/O USB differential input/output minus
(1)
D+ 1 I/O USB differential input/output plus
(1)
DGND 26 – Digital groundDGNDU 4 – Digital ground for USB transceiverDIN 24 I S/PDIF input
(2)
DOUT 25 O S/PDIF outputHID0 5 I HID key state input (mute), active-high
(3)
HID1 6 I HID key state input (volume up), active-high
(3)
HID2 7 I HID key state input (volume down), active-high
(3)
SEL0 8 I Must be set to high
(4)
SEL1 9 I Connected to the USB port of V
BUS
(4)
SSPND 28 O Suspend flag, active-low (Low: suspend, High: operational)V
BUS
3 – Must be connected to V
DD
V
CCC
10 – Analog power supply for codec
(5)
V
CCP1
17 – Analog power supply for PLL
(5)
V
CCP2
19 – Analog power supply for PLL
(5)
V
CCX
23 – Analog power supply for oscillator
(5)
V
COM
14 – Common for ADC/DAC (V
CCC
/2)
(5)
V
DD
27 – Digital power supply
(5)
V
IN
L 12 I ADC analog input for L-channelV
IN
R 13 I ADC analog input for R-channelV
OUT
L 16 O DAC analog output for L-channelV
OUT
R 15 O DAC analog output for R-channelXTI 21 I Crystal oscillator input
(6)
XTO 20 O Crystal oscillator output
(1) LV-TTL level(2) 3.3-V CMOS-level input with internal pulldown, 5-V tolerant(3) 3.3-V CMOS-level input with internal pulldown. This pin informs the PC of serviceable control signals such as mute, volume up, orvolume down, which have no direct connection with the internal DAC or ADC. See the Interface #3 and End-Points sections.(4) TTL Schmitt trigger, 5-V tolerant(5) Connect a decoupling capacitor to GND.(6) 3.3-V CMOS-level input
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PCM2901 FUNCTIONAL BLOCK DIAGRAM
SSPND
TEST1
ADC
V L
IN
V R
IN
VCOM
FIFO
Selector
Analog
PLL
Analog
PLL
FIFO
USBSIE
XCVR
DAC
V L
OUT
V R
OUT
XTI XTO
12MHz
PLL ( 8)´
96MHz Tracker
(SpAct)
USB
Protocol
Controller
Power
Manager
ISO-In
End-Point
Control
End-Point
ISO-Out
End-Point
HID
End-Point
D+
D–
SEL0
SEL1
HID0
HID1
HID2
VBUS
VCCC VCCP1 VCCP2 VCCX VDD DGNDUDGNDAGNDXAGNDPAGNDC
B0238-02
TEST0
PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
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PCM2903 FUNCTIONAL BLOCK DIAGRAM
SSPND
S/PDIFDecoderDIN
Lock
ADC
V L
IN
V R
IN
VCOM
FIFO
Selector
Analog
PLL
Analog
PLL
FIFO
USBSIE
XCVR
DAC
V L
OUT
V R
OUT
S/PDIFEncoder
DOUT
XTI XTO
12MHz
PLL ( 8)´
96MHz Tracker
(SpAct)
USB
Protocol
Controller
Power
Manager
ISO-In
End-Point
Control
End-Point
ISO-Out
End-Point
HID
End-Point
D+
D–
SEL0
SEL1
HID0
HID1
HID2
VBUS
VCCC VCCP1 VCCP2 VCCX VDD DGNDUDGNDAGNDXAGNDPAGNDC
B0239-02
PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
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PCM2901/2903 BLOCK DIAGRAM OF ANALOG FRONT-END (RIGHT CHANNEL)
V R
IN
13
14
VCOM
4.7 Fm30kW
+
+
–
–
Delta-Sigma
Modulator
(+)
(–)
Reference
(V /2)
CCC
10 Fm
+
+
S0011-07
TYPICAL CHARACTERISTICS
ADC
0.003
0.004
0.005
0.006
0.007
0.008
0.009
0.010
−50 −25 0 25 50 75 100
TA − Free-Air Temperature − °C
THD+N − Total Harmonic Distortion + Noise − %
G001
85
87
89
91
93
95
−50 −25 0 25 50 75 100
TA − Free-Air Temperature − °C
Dynamic Range and SNR − dB
SNR
Dynamic Range
G002
PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
All specifications at T
A
= 25 °C, V
DD
= V
CCC
= V
CCP1
= V
CCP2
= V
CCx
= 3.3 V, f
s
= 44.1 kHz, f
IN
= 1 kHz, 16-bit data, unlessotherwise noted.
TOTAL HARMONIC DISTORTION + NOISE at – 0.5 dB DYNAMIC RANGE and SNRvs vsFREE-AIR TEMPERATURE FREE-AIR TEMPERATURE
Figure 1. Figure 2.
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0.003
0.004
0.005
0.006
0.007
0.008
0.009
0.010
2.8 3.0 3.2 3.4 3.6 3.8
VCC − Supply V oltage − V
THD+N − Total Harmonic Distortion + Noise − %
G003
85
87
89
91
93
95
2.8 3.0 3.2 3.4 3.6 3.8
VCC − Supply V oltage − V
Dynamic Range and SNR − dB
SNR
Dynamic Range
G004
0.003
0.004
0.005
0.006
0.007
0.008
0.009
0.010
30 35 40 45 50
fS − Sampling Frequency − kHz
THD+N − Total Harmonic Distortion + Noise − %
G005
85
87
89
91
93
95
30 35 40 45 50
fS − Sampling Frequency − kHz
Dynamic Range and SNR − dB
SNR
Dynamic Range
G006
PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
TYPICAL CHARACTERISTICS (continued)All specifications at T
A
= 25 °C, V
DD
= V
CCC
= V
CCP1
= V
CCP2
= V
CCx
= 3.3 V, f
s
= 44.1 kHz, f
IN
= 1 kHz, 16-bit data, unlessotherwise noted.
TOTAL HARMONIC DISTORTION + NOISE at – 0.5 dB DYNAMIC RANGE and SNRvs vsSUPPLY VOLTAGE SUPPLY VOLTAGE
Figure 3. Figure 4.
TOTAL HARMONIC DISTORTION + NOISE at – 0.5 dB DYNAMIC RANGE and SNRvs vsSAMPLING FREQUENCY SAMPLING FREQUENCY
Figure 5. Figure 6.
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DAC
90
91
92
93
94
95
96
97
98
−50 −25 0 25 50 75 100
TA − Free-Air Temperature − °C
Dynamic Range and SNR − dB
SNR
Dynamic Range
G008
0.003
0.004
0.005
0.006
0.007
0.008
−50 −25 0 25 50 75 100
TA − Free-Air Temperature − °C
THD+N − Total Harmonic Distortion + Noise − %
G007
0.003
0.004
0.005
0.006
0.007
0.008
3.0 3.1 3.2 3.3 3.4 3.5 3.6
VCC − Supply V oltage − V
THD+N − Total Harmonic Distortion + Noise − %
G009
90
91
92
93
94
95
96
97
98
3.0 3.1 3.2 3.3 3.4 3.5 3.6
VCC − Supply V oltage − V
Dynamic Range and SNR − dB
SNR
Dynamic Range
G010
PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
TYPICAL CHARACTERISTICS (continued)All specifications at T
A
= 25 °C, V
DD
= V
CCC
= V
CCP1
= V
CCP2
= V
CCx
= 3.3 V, f
s
= 44.1 kHz, f
IN
= 1 kHz, 16-bit data, unlessotherwise noted.
TOTAL HARMONIC DISTORTION + NOISE at 0 dB DYNAMIC RANGE and SNRvs vsFREE-AIR TEMPERATURE FREE-AIR TEMPERATURE
Figure 7. Figure 8.
TOTAL HARMONIC DISTORTION + NOISE at 0 dB DYNAMIC RANGE and SNRvs vsSUPPLY VOLTAGE SUPPLY VOLTAGE
Figure 9. Figure 10.
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90
91
92
93
94
95
96
97
98
30 35 40 45 50
fS − Sampling Frequency − kHz
Dynamic Range and SNR − dB
SNR
Dynamic Range
G012
0.003
0.004
0.005
0.006
0.007
0.008
30 35 40 45 50
fS − Sampling Frequency − kHz
THD+N − Total Harmonic Distortion + Noise − %
G011
ADC OUTPUT SPECTRUM
f − Frequency − kHz
−140
−120
−100
−80
−60
−40
−20
0
0 5 10 15 20
Amplitude − dB
G013
f − Frequency − kHz
−140
−120
−100
−80
−60
−40
−20
0
0 5 10 15 20
Amplitude − dB
G014
PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
TYPICAL CHARACTERISTICS (continued)All specifications at T
A
= 25 °C, V
DD
= V
CCC
= V
CCP1
= V
CCP2
= V
CCx
= 3.3 V, f
s
= 44.1 kHz, f
IN
= 1 kHz, 16-bit data, unlessotherwise noted.
TOTAL HARMONIC DISTORTION + NOISE at 0 dB DYNAMIC RANGE and SNRvs vsSAMPLING FREQUENCY SAMPLING FREQUENCY
Figure 11. Figure 12.
OUTPUT SPECTRUM ( – 0.5 dB, N = 8192) OUTPUT SPECTRUM ( – 60 dB, N = 8192)
Figure 13. Figure 14.
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DAC OUTPUT SPECTRUM
f − Frequency − kHz
−140
−120
−100
−80
−60
−40
−20
0
0 5 10 15 20
Amplitude − dB
G015
f − Frequency − kHz
−140
−120
−100
−80
−60
−40
−20
0
0 5 10 15 20
Amplitude − dB
G016
SUPPLY CURRENT
0
10
20
30
40
50
60
70
80
30 35 40 45 50
fS − Sampling Frequency − kHz
ICC − Operational Supply Current − mA
ADC and DAC
G018
PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
TYPICAL CHARACTERISTICS (continued)All specifications at T
A
= 25 °C, V
DD
= V
CCC
= V
CCP1
= V
CCP2
= V
CCx
= 3.3 V, f
s
= 44.1 kHz, f
IN
= 1 kHz, 16-bit data, unlessotherwise noted.
OUTPUT SPECTRUM (0 dB, N = 8192) OUTPUT SPECTRUM ( – 60 dB, N = 8192)
Figure 15. Figure 16.
OPERATIONAL and SUSPEND SUPPLY CURRENT OPERATIONAL SUPPLY CURRENTvs vsSUPPLY VOLTAGE SAMPLING FREQUENCY
Figure 17. Figure 18.
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ADC DIGITAL DECIMATION FILTER FREQUENCY RESPONSE
Amplitude − dB
−160
−140
−120
−100
−80
−60
−40
−20
0
0 8 16 24 32
Frequency [y fS]G019
Frequency [y fS]
−100
−90
−80
−70
−60
−50
−40
−30
−20
−10
0
0.0 0.2 0.4 0.6 0.8 1.0
Amplitude − dB
G020
Frequency [y fS]
−20
−16
−12
−8
−4
0
0.46 0.48 0.50 0.52 0.54
Amplitude − dB
G022
Frequency [y fS]
−0.8
−0.6
−0.4
−0.2
0.0
0.2
0.0 0.1 0.2 0.3 0.4 0.5
Amplitude − dB
0.0
G021
PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
TYPICAL CHARACTERISTICS (continued)All specifications at T
A
= 25 °C, V
DD
= V
CCC
= V
CCP1
= V
CCP2
= V
CCx
= 3.3 V, f
s
= 44.1 kHz, f
IN
= 1 kHz, 16-bit data, unlessotherwise noted.
OVERALL CHARACTERISTICS STOP-BAND ATTENUATION
Figure 19. Figure 20.
PASS-BAND RIPPLE TRANSITION-BAND RESPONSE
Figure 21. Figure 22.
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ADC DIGITAL HIGH-PASS FILTER FREQUENCY RESPONSE
Frequency [y fS/1000]
−100
−90
−80
−70
−60
−50
−40
−30
−20
−10
0
0.0 0.1 0.2 0.3 0.4
Amplitude − dB
G023
Frequency [y fS/1000]
−1.0
−0.8
−0.6
−0.4
−0.2
0.0
0 1 2 3 4
Amplitude − dB
0.0
G024
ADC ANALOG ANTIALIASING FILTER FREQUENCY RESPONSE
−1.0
−0.8
−0.6
−0.4
−0.2
0.0
f − Frequency − kHz
Amplitude − dB
0.01 1 10 1000.1
0.0
G026
−50
−40
−30
−20
−10
0
f − Frequency − kHz
Amplitude − dB
1 100 1k 10k10
G025
PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
TYPICAL CHARACTERISTICS (continued)All specifications at T
A
= 25 °C, V
DD
= V
CCC
= V
CCP1
= V
CCP2
= V
CCx
= 3.3 V, f
s
= 44.1 kHz, f
IN
= 1 kHz, 16-bit data, unlessotherwise noted.
STOP-BAND CHARACTERISTICS PASS-BAND CHARACTERISTICS
Figure 23. Figure 24.
STOP-BAND CHARACTERISTICS PASS-BAND CHARACTERISTICS
Figure 25. Figure 26.
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DAC DIGITAL INTERPOLATION FILTER FREQUENCY RESPONSE
Frequency [y fS]
−100
−90
−80
−70
−60
−50
−40
−30
−20
−10
0
0 1 2 3 4
Amplitude − dB
G027
Frequency [y fS]
−0.8
−0.6
−0.4
−0.2
0.0
0.2
0.0 0.1 0.2 0.3 0.4 0.5
Amplitude − dB
0.0
G028
Frequency [y fS]
−20
−18
−16
−14
−12
−10
−8
−6
−4
−2
0
0.46 0.47 0.48 0.49 0.50 0.51 0.52 0.53 0.54
Amplitude − dB
G029
PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
TYPICAL CHARACTERISTICS (continued)All specifications at T
A
= 25 °C, V
DD
= V
CCC
= V
CCP1
= V
CCP2
= V
CCx
= 3.3 V, f
s
= 44.1 kHz, f
IN
= 1 kHz, 16-bit data, unlessotherwise noted.
STOP-BAND ATTENUATION PASS-BAND RIPPLE
Figure 27. Figure 28.
TRANSITION-BAND RESPONSE
Figure 29.
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DAC ANALOG FIR FILTER FREQUENCY RESPONSE
−50
−40
−30
−20
−10
0
0 8 16 24 32
Frequency [y fS]
Amplitude − dB
G030
−0.8
−0.6
−0.4
−0.2
0.0
0.2
0.0 0.1 0.2 0.3 0.4 0.5
Frequency [y fS]
Amplitude − dB
0.0
G031
DAC ANALOG LOW-PASS FILTER FREQUENCY RESPONSE
−1.0
−0.8
−0.6
−0.4
−0.2
0.0
f − Frequency − kHz
Amplitude − dB
0.01 1 10 1000.1
0.0
G033
−50
−40
−30
−20
−10
0
f − Frequency − kHz
Amplitude − dB
1 100 1k 10k10
G032
PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
TYPICAL CHARACTERISTICS (continued)All specifications at T
A
= 25 °C, V
DD
= V
CCC
= V
CCP1
= V
CCP2
= V
CCx
= 3.3 V, f
s
= 44.1 kHz, f
IN
= 1 kHz, 16-bit data, unlessotherwise noted.
STOP-BAND CHARACTERISTICS PASS-BAND CHARACTERISTICS
Figure 30. Figure 31.
STOP-BAND CHARACTERISTICS PASS-BAND CHARACTERISTICS
Figure 32. Figure 33.
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DETAILED DESCRIPTION
USB INTERFACE
PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
Control data and audio data are transferred to the PCM2901/2903 via D+ (pin 1) and D – (pin 2). All data to/fromthe PCM2901/2903 is transferred at full speed. The device descriprtor contains the information described inTable 1. The device descriptor can be modified on request; contact a Texas Instruments representative fordetails.
Table 1. Device Descriptor
USB revision 1.1 compliantDevice class 0x00 (device-defined interface level)Device subclass 0x00 (not specified)Device protocol 0x00 (not specified)Max packet size for end-point 0 8 bytesVendor ID 0x08BB (default value, can be modified)Product ID 0x2901 / 0x2903 (default value, can be modified)Device release number 1.0 (0x0100)Number of configurations 1Vendor strings String #1 (see Table 3 )Product strings String #2 (see Table 3 )Serial number Not supported
The configuration descriptor contains the information described in Table 2 . The configuration descriptor can bemodified on request; contact a Texas Instruments representative for details.
Table 2. Configuration Descriptor
Interface Four interfacesPower attribute 0xC0 (Self-powered, no remote wakeup)Maximum power 0x00 (0 mA. Default value, can be modified)
The string descriptor contains the information described in Table 3 . The string descriptor can be modified onrequest; contact a Texas Instruments representative for details.
Table 3. String Descriptor
#0 0x0409#1 Burr-Brown from TI (default value, can be modified)#2 USB audio codec (default value, can be modified)
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DEVICE CONFIGURATON
AnalogOut
AnalogIn
Default End-Point
End-Point#2
(IF#1)
AudioStreaming Interface
End-Point#0
End-Point#4
(IF#2)
AudioStreaming Interface
End-Point#5
(IF#3)
HIDInterface
IT
TID1
FU
UID3
OT
TID5
OT
TID2
IT
TID4
Standard AudioControlInterface(IF#0)
PCM2901/2903
M0024-04
PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
Figure 34 illustrates the USB audio function topology. The PCM2901/2903 has four interfaces. Each interface isconstructed by alternative settings.
Figure 34. USB Audio Function Topology
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Interface #0
Interface #1
PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
Interface #0 is defined as the control interface. Alternative setting #0 is the only possible setting for interface #0.Alternative setting #0 describes the standard audio control interface. A terminal constructs the audio controlinterface. The PCM2901/2903 has the following five terminals.•Input terminal (IT #1) for isochronous-out stream•Output terminal (OT #2) for audio analog output•Feature unit (FU #3) for DAC digital attenuator•Input terminal (IT #4) for audio analog input•Output terminal (OT #5) for isochronous-in stream
Input terminal #1 is defined as USB stream (terminal type 0x0101). Input terminal #1 can accept 2-channel audiostreams constructed by left and right channels. Output terminal #2 is defined as a speaker (terminal type0x0301). Input terminal #4 is defined as microphone (terminal type 0x0201). Output terminal #5 is defined as aUSB stream (terminal type 0x0101). Output terminal #5 can generate 2-channel audio streams constructed byleft and right channels. Feature unit #3 supports the following sound control features.•Volume control•Mute control
The built-in digital volume controller can be manipulated by an audio class specific request from 0 dB to – 64 dBin 1-dB steps. Changes are made by incrementing or decrementing by one step (1 dB) for every 1/f
S
time intervaluntil the volume level has reached the requested value. Each channel can be set for different values. The mastervolume control is not supported. A request to the master volume is stalled and ignored. The built-in digital mutecontroller can be manipulated by audio class-specific request. A master mute control request is acceptable. Arequest to an individual channel is stalled and ignored.
Interface #1 is defined as the audio streaming data-out interface. Interface #1 has the following seven alternativesettings. Alternative setting #0 is the zero-bandwidth setting.ALTERNATIVE TRANSFER SAMPLING RATEDATA FORMATSETTING MODE (kHz)
00 Zero bandwidth01 16 bit Stereo 2s complement (PCM) Adaptive 32, 44.1, 4802 16 bit Mono 2s complement (PCM) Adaptive 32, 44.1, 4803 8 bit Stereo 2s complement (PCM) Adaptive 32, 44.1, 4804 8 bit Mono 2s complement (PCM) Adaptive 32, 44.1, 4805 8 bit Stereo Offset binary (PCM8) Adaptive 32, 44.1, 4806 8 bit Mono Offset binary (PCM8) Adaptive 32, 44.1, 48
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Interface #2
Interface #3
End-Points
PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
Interface #2 is defined as the audio streaming data-in interface. Interface #2 has the following 19 alternativesettings. Alternative setting #0 is the zero-bandwidth setting. All other alternative settings are operationalsettings.
ALTERNATIVE SAMPLING RATEDATA FORMAT TRANSFER MODESETTING (kHz)
00 Zero bandwidth01 16 bit Stereo 2s complement (PCM) Asynchronous 4802 16 bit Mono 2s complement (PCM) Asynchronous 4803 16 bit Stereo 2s complement (PCM) Asynchronous 44.104 16 bit Mono 2s complement (PCM) Asynchronous 44.105 16 bit Stereo 2s complement (PCM) Asynchronous 3206 16 bit Mono 2s complement (PCM) Asynchronous 3207 16 bit Stereo 2s complement (PCM) Asynchronous 22.0508 16 bit Mono 2s complement (PCM) Asynchronous 22.0509 16 bit Stereo 2s complement (PCM) Asynchronous 160A 16 bit Mono 2s complement (PCM) Asynchronous 160B 8 bit Stereo 2s complement (PCM) Asynchronous 160C 8 bit Mono 2s complement (PCM) Asynchronous 160D 8 bit Stereo 2s complement (PCM) Asynchronous 80E 8 bit Mono 2s complement (PCM) Asynchronous 80F 16 bit Stereo 2s complement (PCM) Synchronous 11.02510 16 bit Mono 2s complement (PCM) Synchronous 11.02511 8 bit Stereo 2s complement (PCM) Synchronous 11.02512 8 bit Mono 2s complement (PCM) Synchronous 11.025
Interface #3 is defined as the interrupt data-in interface. Alternative setting #0 is the only possible setting forinterface #3. Interface #3 constructs the HID consumer control device. Interface #3 reports the following threekey statuses.
•Mute (0xE209)•Volume up (0xE909)•Volume down (0xEA09)
The PCM2901/2903 has the following four end-points.•Control end-point (EP #0)•Isochronous-out audio data stream end-point (EP #2)•Isochronous-in audio data stream end-point (EP #4)•HID end-point (EP #5)
The control end-point is a default end-point. The control end-point is used to control all functions of thePCM2901/2903 by the standard USB request and USB audio-class-specific request from the host. Theisochronous-out audio data stream end-point is an audio sink end-point, which receives the PCM audio data. Theisochronous-out audio data stream end-point accepts the adaptive transfer mode. The isochronous-in audio datastream end-point is an audio source end-point, which transmits the PCM audio data. The isochronous-in audiodata stream end-point uses asynchronous transfer mode. The HID end-point is an interrupt-in end-point. HIDend-point reports HID0, HID1, and HID2 pin status every 32 ms.
The human interface device (HID) pins are defined as consumer control devices. The HID function is designedas an independent end-point from both isochronous-in and -out end-points. This means that the device affectedby the HID operation depends on the host software. Typically, the HID function affects the primary audio-outdevice.
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Clock and Reset
Digital Audio Interface (PCM2903)
Supported Input Data (PCM2903)
Channel Status Information (PCM2903)
Copyright Management (PCM2903)
INTERFACE SEQUENCE
Power On, Attach, and Playback Sequence
PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
The PCM2901/2903 requires a 12-MHz ( ± 500 ppm) clock for the USB and audio function, which can begenerated by a built-in crystal oscillator with a 12-MHz crystal resonator or supplied by an external clock. The12-MHz crystal resonator must be connected to XTI (pin 21) and XTO (pin 20) with one high (1-M Ω) resistor andtwo small capacitors, the capacitance of which depends on the load capacitance of the crystal resonator. If theexternal clock is used, the clock must be supplied to XTI, and XTO must be open.
The PCM2901/2903 has an internal power-on reset circuit, which works automatically when V
DD
(pin 27) exceeds2.5 V typical (2.7 V to 2.2 V), and about 700 µs is required until internal reset release.)
The PCM2903 employs both S/PDIF input and output. Isochronous-out data from the host is encoded to theS/PDIF output and the DAC analog output. Input data is selected as either S/PDIF or ADC analog input. Whenthe device detects an S/PDIF input and successfully locks on the received data, the isochronous-in transfer datasource is automatically selected from S/PDIF itself; otherwise, the data source is selected to ADC analog input.
The following data formats are accepted by the S/PDIF input and output. All other data formats are unable to useS/PDIF.
•48-kHz 16-bit stereo•44.1-kHz 16-bit stereo•32-kHz 16-bit stereo
Mismatch between input data format and host command may cause unexpected results except in the followingconditions.
•Record monaural format from stereo data input at the same data rate•Record 8-bit format from 16-bit data input at the same data rate
A combination of the foregoing conditions is not accepted.
For playback, all possible data-rate source is converted to 16-bit stereo format at the same source data rate.
The channel status information is fixed as consumer application, PCM mode, copyright, and digital/digitalconverter. All other bits are fixed as 0s except for the sample frequency, which is set automatically according tothe data received through the USB.
Isochronous-in data is affected by the serial copy management system (SCMS). Where receiving digital audiodata that is indicated as original data in the control bit, input digital audio data transfers to the host. If the data isindicated as first generation or higher, transferred data is selected to analog input.
Digital audio data output is always encoded as original with SCMS control.
The implementation of this feature is an option for the customer. Note that it is the user's responsibility whetherthey implement this feature in their product or not.
The PCM2901/2903 is ready for setup when the reset sequence has finished and the USB bus is attached. Inorder to perform certain reset sequences defined in the USB specification, V
DD
, V
CCC
, V
CCP1
, V
CCP2
, and V
CCXmust rise up with 10 ms / 3.3 V. After connection has been established by setup, the PCM2901/2903 is ready toaccept USB audio data. While waiting, the audio data (idle state) and analog output are set to bipolar zero (BPZ).
When receiving the audio data, the PCM2901/2903 stores the first audio packet, which contained 1-ms audiodata, into the internal storage buffer. The PCM2901/2903 starts playing the audio data when detecting thefollowing start of frame (SOF) packet.
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D+/D–
SEL1(Pin9)
2.5V(Typ)
0V
InternalReset
ReadyforSetup
Attach
(ConnecttoUSBBus)
SOF
ReadyforPlayback
BusReset SetConfiguration
SOF SOF
BPZ
BusIdle
3.3V (Typ)
5V=VBUS
(Typ)
1 AudioData
st 2 AudioData
nd
V (Pin27)
DD
SSPND
V L
OUT
V R
OUT
700 smDeviceSetup 1ms
T0055-03
PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
Figure 35. Attach After Power On
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D+/D–
SEL1(Pin9)
2.5V(Typ)
0V
InternalReset
ReadyforSetup
SOF
ReadyforPlayback
BusReset SetConfiguration
SOF SOF
BPZ
BusIdle
3.3V (Typ)
5V=VBUS
(Typ)
1 AudioData
st 2 AudioData
nd
V (Pin27)
DD
SSPND
V L
OUT
V R
OUT
700 smDeviceSetup 1ms
T0273-01
Play, Stop, and Detach Sequence
Record Sequence
Suspend and Resume Sequence
PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
Figure 36. Power-On Under Attach
When the host finishes or aborts the playback, the PCM2901/2903 stops playing after the last audio data hasplayed.
The PCM2901/2903 starts the audio capture into the internal memory after receiving the SET_INTERFACEcommand.
The PCM2901/2903 enters the suspend state after it detects a constant idle state on the USB bus, approximately5 ms. While the PCM2901/2903 enters the suspend state, the SSPND flag (pin 28) is asserted. ThePCM2901/2903 wakes up immediately after detecting a non-idle state on the USB bus.
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D+/D–
V L
OUT
V R
OUT
AudioDataAudioData Last AudioData
Detach
5V=VBUS
(Typ)
SOF SOF SOF SOF SOF
1ms
SEL1(Pin9)
T0056-03
D+/D–
V L
IN
V R
IN
1ms
SET_INTERFACE AudioData
IN Token
AudioData
IN Token
AudioData
IN Token
SOF SOF SOF SOF SOF
T0259-01
5ms
D+/D–
SSPND
Idle
Active Active
Suspend
T0057-02
PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
Figure 37. Play, Stop, and Detach
Figure 38. Record Sequence
Figure 39. Suspend and Resume
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PCM2901 TYPICAL CIRCUIT CONNECTION
28
27
26
25
24
23
22
21
20
19
1
2
3
4
5
6
7
8
9
10
PCM2901
SSPND
XTI
VDD
DGND
TEST1
TEST0
XTO
VCCP2
AGNDX
VCCX
D+
D–
MUTE/
PowerDown
C1
11
12
13
14
D+
D–
VBUS
DGNDU
HID0
HID1
HID2
SEL0
SEL1
VCCC
AGNDC
V L
IN
V R
IN
VCOM
18
17
16
15
VCCP1
V L
OUT
V R
OUT
AGNDP
22 W
22 W
V (3.3V)
DD
1.5k 3W ´
IC1
1.5kW
GND
VBUS
1MW
C2
C9
C10
V (3.3V)
CC
1MW
12MHz
C5
C6
C3
C4
C7
C8
C11
C12
LPF,
Amp
LPF,
Amp
S0312-01
PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
Figure 40 illustrates a typical circuit connection for a simple application. The circuit illustrated is for informationonly. The whole board design should be considered to meet the USB specification as a USB-compliant product.
NOTE:
IC1 must be driven by V
DD
with a 5-V tolerant input.C
1
, C
2
, C
3
, C
4
, C
7
, C
8
: 10 µFC
5
, C
6
: 10 pF to 33 pF (depending on crystal resonator)C
9
, C
10
, C
11
, C
12
: The capacitance may vary depending on design.
Figure 40. Self-Powered Configuration
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PCM2903 TYPICAL CIRCUIT CONNECTION
28
27
26
25
24
23
22
21
20
19
1
2
3
4
5
6
7
8
9
10
PCM2903
SSPND
XTI
VDD
DGND
DOUT
DIN
XTO
VCCP2
AGNDX
VCCX
D+
D–
MUTE/
PowerDown
C1
11
12
13
14
D+
D–
VBUS
DGNDU
HID0
HID1
HID2
SEL0
SEL1
VCCC
AGNDC
V L
IN
V R
IN
VCOM
18
17
16
15
VCCP1
V L
OUT
V R
OUT
AGNDP
22 W
22 W
V (3.3V)
DD
1.5k 3W ´
IC1
1.5kW
GND
VBUS
1MW
C2
C9
C10
V (3.3V)
CC
1MW
12MHz
C5
C6
C3
C4
C7
C8
C11
C12
LPF,
Amp
LPF,
Amp
S0312-02
PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
Figure 41 illustrates a typical circuit connection for a simple application. The circuit illustrated is for informationonly. The whole board design should be considered to meet the USB specification as a USB-compliant product.
NOTE:
IC1 must be driven by V
DD
with a 5-V tolerant input.C
1
, C
2
, C
3
, C
4
, C
7
, C
8
: 10 µFC
5
, C
6
: 10 pF to 33 pF (depending on crystal resonator)C
9
, C
10
, C
11
, C
12
: The capacitance may vary depending on design.
Figure 41. Self-Powered Configuration
Copyright © 2002 – 2007, Texas Instruments Incorporated Submit Documentation Feedback 29
Product Folder Link(s): PCM2901 PCM2903
www.ti.com
APPENDIX
Operating Environment
PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
For current information on the PCM2901/2903 operating environment, see the Updated Operating Environmentsfor PCM270X, PCM290X Applications application report, SLAA374 .
30 Submit Documentation Feedback Copyright © 2002 – 2007, Texas Instruments Incorporated
Product Folder Link(s): PCM2901 PCM2903
www.ti.com
PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
REVISION HISTORY
Changes from Revision B (March 2002) to Revision C .................................................................................................. Page
•Deleted operating environment information from data sheet and added reference to application report ........................... 30
Copyright © 2002 – 2007, Texas Instruments Incorporated Submit Documentation Feedback 31
Product Folder Link(s): PCM2901 PCM2903
PACKAGE OPTION ADDENDUM
www.ti.com 20-Aug-2011
Addendum-Page 1
PACKAGING INFORMATION
Orderable Device Status (1) Package Type Package
Drawing Pins Package Qty Eco Plan (2) Lead/
Ball Finish MSL Peak Temp (3) Samples
(Requires Login)
PCM2901E ACTIVE SSOP DB 28 47 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
PCM2901E/2K ACTIVE SSOP DB 28 2000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
PCM2901E/2KG4 ACTIVE SSOP DB 28 2000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
PCM2901EG4 ACTIVE SSOP DB 28 47 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
PCM2903E NRND SSOP DB 28 47 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
PCM2903EG4 NRND SSOP DB 28 47 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight
in homogeneous material)
(3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
PACKAGE OPTION ADDENDUM
www.ti.com 20-Aug-2011
Addendum-Page 2
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device Package
Type Package
Drawing Pins SPQ Reel
Diameter
(mm)
Reel
Width
W1 (mm)
A0
(mm) B0
(mm) K0
(mm) P1
(mm) W
(mm) Pin1
Quadrant
PCM2901E/2K SSOP DB 28 2000 330.0 17.4 8.5 10.8 2.4 12.0 16.0 Q1
PACKAGE MATERIALS INFORMATION
www.ti.com 29-Jul-2011
Pack Materials-Page 1
*All dimensions are nominal
Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm)
PCM2901E/2K SSOP DB 28 2000 336.6 336.6 28.6
PACKAGE MATERIALS INFORMATION
www.ti.com 29-Jul-2011
Pack Materials-Page 2
MECHANICAL DATA
MSSO002E – JANUARY 1995 – REVISED DECEMBER 2001
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
DB (R-PDSO-G**) PLASTIC SMALL-OUTLINE
4040065 /E 12/01
28 PINS SHOWN
Gage Plane
8,20
7,40
0,55
0,95
0,25
38
12,90
12,30
28
10,50
24
8,50
Seating Plane
9,907,90
30
10,50
9,90
0,38
5,60
5,00
15
0,22
14
A
28
1
2016
6,50
6,50
14
0,05 MIN
5,905,90
DIM
A MAX
A MIN
PINS **
2,00 MAX
6,90
7,50
0,65 M
0,15
0°–ā8°
0,10
0,09
0,25
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion not to exceed 0,15.
D. Falls within JEDEC MO-150
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