________________General Description
The MAX2323/MAX2325 are low-noise amplifier (LNA)
plus mixer ICs optimized for code-division multiple-access
(CDMA) applications in both cellular and PCS bands. The
MAX2323 addresses dual-band, triple-mode CDMA appli-
cations by providing switched signal paths for cellular FM,
cellular CDMA, and PCS CDMA. The MAX2325 is a cellu-
lar-band dual-mode version.
To optimize cellular-band dynamic range at minimum cur-
rent, the MAX2323/MAX2325 implement four LNA states:
high gain/high linearity, high gain/low linearity, midgain,
and low gain. In high-gain/high-linearity mode, the
adjustable high-intercept LNA minimizes desensitization in
the presence of a large interfering signal. For the other
gain states, the LNA current is reduced to improve stand-
by time.
The CDMA mixers are designed for high linearity, low
noise, and differential IF outputs, while the FM mixer is
designed for lower current and single-ended output. Each
band is implemented with a separate mixer to optimize
performance for the specific band.
The MAX2323/MAX2325 can also be used in TDMA,
EDGE, and W-CDMA phones.
________________________Applications
Dual-Band, Triple-Mode PCS/Cellular Phones
Dual-Mode Cellular Phones
____________________________Features
♦2.7V Operation
♦Dual Band, Triple Mode
♦Three LNA Gain Settings (Cellular)
♦Two LNA Gain Settings (PCS)
♦18mA in Low-Gain Mode
19.5mA in Paging and Midgain Mode
26.5mA in High-Gain, High-Linearity Mode
16.5mA in FM Mode, High-Gain, Low-Linearity
Mode
♦2.5dB (typ) Cascade Noise Figure
♦Adjustable LNA IIP3, +5dBm to +13dBm
♦Ultra-Small 28-Pin Package (5mm x 5mm)
MAX2323/MAX2325
Triple/Dual-Mode
CDMA LNA/Mixers
________________________________________________________________ Maxim Integrated Products 1
19-1736; Rev 0; 7/00
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
Pin Configuration/
Functional Diagram
Typical Application Circuits appear at end of data sheet.
MAX2323
2526
27
28 22
2324
8910 11 12 13 14
15
16
17
18
19
20
21
1
2
3
4
5
6
7
MODE.
GND
LOLIN
LOHIN
GND
GND
GND
CMIXIN
CLNAOU
T
GND
PLNAOU
T
GND
GND
PMIXIN
GND
CLNAIN
SLEEP
G2
G1
PLNAIN
RLNA
CDMA-
GND
BAND
VCC
FMOUT
CDMA+
RBIAS
QFN
TOP VIEW
PART TEMP. RANGE PIN- PACKAGE
MAX2323EGI -40°C to +85°C 28 QFN
MAX2325EGI -40°C to +85°C 28 QFN
MAX2323EVKIT -40°C to +85°C 28 QFN
Ordering Information
MAX2323/MAX2325
Triple/Dual-Mode
CDMA LNA/Mixers
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(VCC = +2.7V to +3.6V, RRBIAS = 20kΩ, RRLNA = 24kΩ, TA= -40°C to +85°C, no RF applied. Typical values are VCC = 2.75V and
TA= +25°C, unless otherwise noted.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
VCC to GND ...............................................................0.3V, +4.3V
Digital Input Voltage to GND......................-0.3V to (VCC + 0.3V)
LNA Input Level .....................................................................1Vp
LO, Mixer Input Levels .....................................................+5dBm
Digital Input Current .........................................................±10mA
Continuous Power Dissipation (TA= +70°C)
28-Pin QFN (derate 28.5mW/°C
above TA= +70°C) ...................................................2000mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) ................................ +300°C
PARAMETER CONDITIONS MIN TYP MAX UNITS
PCS CDMA MODE (MAX2323)
Midgain mode 20.5 24
High-gain, low-linearity idle mode 22 25.5Operating Supply Current
High-gain, high-linearity mode 25.5 30
mA
CELLULAR CDMA MODE (MAX2323/MAX2325)
Low-gain mode 18.0 21.5
Midgain mode 19.5 23.5
High-gain, low-linearity idle mode 19.5 23.5
Operating Supply Current
High-gain, high-linearity mode 26.5 31.5
mA
FM MODE (MAX2323/MAX2325)
Low-gain mode 15 18
Midgain mode 16.5 20
High-gain, low-linearity mode 16.5 20
Operating Supply Current
High-gain, high-linearity mode 23.5 28
mA
SHUTDOWN MODE
Shutdown Supply Current SLEEP = high 1 25 µA
ALL MODES
Digital Input Logic High Except SLEEP input 2.0 V
SLEEP Input Logic High VCC -
0.6 V
Digital Input Logic Low 0.6 V
Digital Input Current High 5µA
Digital Input Current Low -25 µA
MAX2323/MAX2325
Triple/Dual-Mode
CDMA LNA/Mixers
_______________________________________________________________________________________ 3
AC ELECTRICAL CHARACTERISTICS
(MAX2323 EV kit, FPLNAIN = 1960MHz, FCLNAIN = 881MHz, FIF = 110MHz, high-side LO, 50Ωsystem, RRBIAS = 20kΩ,
RRLNA = 24kΩ. Typical values are VCC = 2.75V, TA= +25°C. LO input power = -7dBm, LOW = 0V, HIGH = VCC, unless otherwise
noted.) (Note 1)
PARAMETER CONDITIONS MIN TYP MAX UNITS
OVERALL PERFORMANCE
Low-Band RF Frequency Range (Note 2) 850 950 MHz
High-Band RF Frequency
Range MAX2323 (Note 2) 1800 2200 MHz
Low-Band LO Frequency Range (Note 2) 800 1150 MHz
High-Band LO Frequency
Range MAX2323 (Note 2) 1600 2300 MHz
IF Frequency Range (Note 2) 40 400 MHz
LO Input Level 100Ω input impedance -7 -5 0 dBm
CELLULAR LNA PERFORMANCE (MAX2323/MAX2325)
CDMA AND FM HIGH-GAIN, HIGH-LINEARITY MODES
Gain TA = TMIN to TMAX 14.5 15.5 17 dB
Noise Figure 1.7 1.9 dB
TA = +25°C 9 10.5
IIP3 TA = TMIN to TMAX 7.5 dBm
CDMA HIGH-GAIN, LOW-LINEARITY PAGING MODE, AND FM HIGH-GAIN MODE
Gain TA = TMIN to TMAX 13 14.5 16 dB
LNA Noise Figure 1.7 1.9 dB
TA = +25°C 2.5 5
LNA IIP3 (Note 3) TA = TMIN to TMAX 2.7 dBm
CDMA AND FM MIDGAIN MODES
Gain TA = TMIN to TMAX 4.5 6 8 dB
Noise Figure 3.3 3.5 dB
TA = +25°C 8.5 10
IIP3 (Note 3) TA = TMIN to TMAX 5dBm
CDMA AND FM LOW-GAIN MODES
Gain TA = TMIN to TMAX -4.5 -3.5 -1.5 dB
Noise Figure 7.5 8.5 dB
IIP3 (Note 3) 13 17.5 dBm
PCS LNA PERFORMANCE (MAX2323)
CDMA HIGH-GAIN, HIGH-LINEARITY MODE
Gain TA = TMIN to TMAX 13.5 14.5 15.5 dB
Noise Figure 1.9 2.1 dB
TA = +25°C78
IIP3 (Note 3) TA = TMIN to TMAX 5.5 dBm
Note 1: Devices are production tested for functionality at frequencies stated; 30 units from 3 independent wafer lots, when one lot
was at the upper process extreme, one lot was nominal, and one lot was at the lower process extreme, were characterized.
The resulting standard deviation therefore includes process variations. Data sheet limits are ±3σfrom the mean.
Note 2: Operation over this frequency range requires the ports to be rematched for the desired operating range. Performance at
various frequencies is indicated by the S-parameter data in Tables 3–7.
Note 3: Specifications are based on RBIAS = 20kΩ. ICC for all LNAs (except HGHL) and mixers are inversely proportional to RRBIAS.
IIP3 can be traded for ICC by selecting other values of RRBIAS.
MAX2323/MAX2325
Triple/Dual-Mode
CDMA LNA/Mixers
4 _______________________________________________________________________________________
AC ELECTRICAL CHARACTERISTICS (continued)
(MAX2323 EV kit, FPLNAIN = 1960MHz, FCLNAIN = 881MHz, FIF = 110MHz, high-side LO, 50Ωsystem, RRBIAS = 20kΩ,
RRLNA = 24kΩ. Typical values are VCC = 2.75V, TA= +25°C. LO input power = -7dBm, LOW = 0V, HIGH = VCC, unless otherwise
noted.) (Note 1)
PARAMETER CONDITIONS MIN TYP MAX UNITS
CDMA HIGH-GAIN, LOW-LINEARITY PAGING MODE
Gain TA = TMIN to TMAX 12.5 14 14.5 dB
LNA Noise Figure 1.9 2.1 dB
TA = +25°C4.5 5.5
LNA IIP3 (Note 3)
TA = TMIN to TMAX 3.0 dBm
CDMA MIDGAIN MODE
Gain TA = TMIN to TMAX -2.0 -1.0 -0.5 dB
Noise Figure 5.6 6.0 dB
IIP3 (Note 3) 12 13.5 dBm
CELLULAR MIXER PERFORMANCE (MAX2323/MAX2325)
CDMA, ALL MODES
Gain TA = TMIN to TMAX 11.5 13 14.5 dB
Noise Figure 7.5 8.5 dB
IIP3 TA = TMIN to TMAX (Note 3) 3.5 4.8 dBm
FM MODE
Gain TA = TMIN to TMAX 8.5 10 11.5 dB
Noise Figure 10.5 11.5 dB
IIP3 TA = TMIN to TMAX (Note 3) 1.5 5 dBm
PCS MIXER PERFORMANCE (MAX2323)
CDMA HIGH-GAIN, HIGH-LINEARITY MODE
Gain TA = TMIN to TMAX 12 13.5 15.5 dB
Noise Figure 7.9 8.5 dB
IIP3 TA = TMIN to TMAX (Note 3) 1.5 4 dBm
MAX2323/MAX2325
Triple/Dual-Mode
CDMA LNA/Mixers
_______________________________________________________________________________________ 5
Pin Description
PIN
MAX2323 MAX2325
NAME FUNCTION
1 1 RLNA
L N A B i a s - S e t t i ng P i n . F o r no m i n a l b i a s , c o n n ec t a 24 k Ω r es i s t o r t o g r o u n d . T h i s
r e si s t o r v a l u e c a n b e a d j u st e d t o a l t e r t h e l i n e a r i t y o f t h e i np u t L N A i n hi g h - g ai n ,
h i g h - l i n ea r i t y C D M A m o d e s .
—2, 10, 23 N.C. No Connection. Leave this pin floating.
2—PLNAIN High-Band RF Input Port. Blocking capacitor is required, which may be used as part of
the matching network.
3, 8, 11,
12, 13, 18,
24, 25, 27
3, 8, 11, 12,
13, 17, 18,
24, 25, 27
GND Ground
4 4 CLNAIN Low-Band RF Input Port. Blocking capacitor is required, which may be used as part of
the matching network.
5 5 SLEEP Logic Input. High shuts off entire device.
6 6 G2 Logic Input. See Tables 1 and 2 for details.
7 7 G1 Logic Input. See Tables 1 and 2 for details.
9 9 LOLIN Low-Frequency LO Input Port. Requires blocking capacitor, which may be used as
part of an optional matching network.
10 —LOHIN High-Frequency LO Input Port. Requires blocking capacitor, which may be used as
part of an optional matching network.
14 14 MODE Logic Input. See Tables 1 and 2 for details.
15 15 FMOUT FM IF Output Port. Requires a pull-up inductor and a DC blocking capacitor, which
may be used as part of the matching network.
16 16 VCC 2.7V to 3.6V Supply Pin. Must be capacitively bypassed near the pin.
17 —BAND Logic Input. High selects high band (PCS). Low selects low band (cellular).
19, 20 19, 20 CDMA-,
CDMA+
Differential Output Port for CDMA Mode. Requires pull-up inductors and blocking
capacitors, which may be used as part of the matching network.
21 21 RBIAS
Bias Setting Pin. For nominal bias, connect a 20kΩ resistor to ground. This resistor
value can be adjusted to alter the linearity of the mixers in all modes and the LNA in all
modes except high gain and high linearity.
22 22 CMIXIN Low-Band Mixer Input Port. Requires blocking capacitor, which may be used as part of
the matching network.
23 —PMIXIN High-Band Mixer Input Port. Requires blocking capacitor, which may be used as part
of the matching network.
26 —PLNAOUT High-Band LNA Output Port. This port requires an external pull-up inductor and series
capacitor as part of the matching network.
—26 VCC 2.7 to 3.6V Supply Pin. Bypassing is not necessary at this pin.
MAX2323/MAX2325
Triple/Dual-Mode
CDMA LNA/Mixers
6 _______________________________________________________________________________________
Pin Description (continued)
MAX2323 MAX2325 NAME FUNCTION
28 28 CLNAOUT Low-Band LNA Output Port. This port requires an external pull-up inductor and series
capacitor as part of the matching network.
Slug Slug GND Ground
FUNCTION CTRL PIN
MODES
BAND
HGHL AMP
HGLL AMP
MGHL AMP
LGHL AMP
CDMA MIXER
FM MIXER
BAND
MODE
G1
G2
SLEEP
PCS Band, High Gain,
High Linearity (HGHL) P√√1X 00 0
PCS Band, High Gain,
Low Linearity (Paging
Mode) (HGLL)
P√√1X 01 0
PCS Band, Midgain
(MGHL) P√√ 1X 10 0
Cellular Band CDMA
Mode, High Gain, High
Linearity (HGHL)
C√√01 000
Cellular Band CDMA,
High Gain, Low Linearity
(Paging Mode) (HGLL)
C√√01 010
Cellular Band, CDMA
Mode, Midgain (MGHL) C√√ 01 100
Cellular Band, CDMA
Mode, Low Gain (LGHL) C√√ 01 110
Cellular Band, FM Mode,
High Gain, Low Linearity
(HGLL)
C√√00 010
Cellular Band, FM Mode,
Midgain C√√00 100
Cellular Band, FM Mode,
Low Gain C√√00 110
Shutdown — —— ———— XX XX 1
Undefined ——————— 1X11 0
Cellular Band, FM Mode,
High Gain, High Linearity
(HGHL)
C√———— √0000 0
Table 1. MAX2323 Operational Modes
X: Don’t care
MAX2323/MAX2325
Triple/Dual-Mode
CDMA LNA/Mixers
_______________________________________________________________________________________ 7
FUNCTION CTRL PIN
MODES
BAND
HGHL AMP
HGLL AMP
MGHL AMP
LGHL AMP
CDMA MIXER
FM MIXER
MODE
G1
G2
SLEEP
Cellular Band CDMA
Mode, High Gain, High
Linearity (HGHL)
C√√1000
Cellular Band CDMA,
High Gain, Low Linearity
(Paging Mode) (HGLL)
C√√1010
Cellular Band, CDMA
Mode, Midgain (MGHL) C√√1100
Cellular Band, CDMA
Mode, Low Gain (LGHL) C√√ 1110
Cellular Band, FM Mode,
High Gain, Low Linearity
(HGLL)
C√√0010
Cellular Band, FM Mode,
Midgain C√√0100
Cellular Band, FM Mode,
Low Gain C√√0110
Shutdown ——————— XXX1
Cellular Band, FM Mode,
High Gain, High Linearity
(HGHL)
√√0000
Table 2. MAX2325 Operational Modes
X: Don’t care
MAX2323/MAX2325
Triple/Dual-Mode
CDMA LNA/Mixers
8 _______________________________________________________________________________________
Table 3. Cellular LNA S Parameters in High-Gain High-Linearity Mode
FREQUENCY
(MHz)
S11
(MAG)
S11
(PHASE)
S21
(MAG)
S21
(PHASE)
S12
(MAG)
S12
(PHASE)
S22
(MAG)
S22
(PHASE)
700 0.623 -81.9 4.58 79.8 0.046 59.5 0.746 -29.5
750 0.627 -84.3 4.30 78.0 0.048 60.6 0.748 -30.2
800 0.629 -86.6 4.06 74.8 0.049 60.9 0.750 -30.9
850 0.631 -89.0 3.70 72.3 0.051 61.4 0.749 -31.1
900 0.632 -91.4 3.50 72.2 0.052 62.1 0.751 -32.3
950 0.635 -93.7 3.39 68.7 0.053 61.3 0.753 -33.0
1000 0.635 -96.0 3.08 66.3 0.053 62.7 0.753 -33.5
Table 4. PCS LNA S Parameters in High-Gain High-Linearity Mode
FREQUENCY
(MHz)
S11
(MAG)
S11
(PHASE)
S21
(MAG)
S21
(PHASE)
S12
(MAG)
S12
(PHASE)
S22
(MAG)
S22
(PHASE)
1700 0.671 -125.8 5.77 109.2 0.062 90.4 0.796 -50.3
1750 0.675 -126.9 5.66 109.3 0.064 89.9 0.800 -50.7
1800 0.685 -128.9 5.66 107.2 0.065 89.1 0.808 -51.7
1850 0.689 -130.8 5.56 106.3 0.066 88.7 0.812 -52.6
1900 0.694 -132.7 5.63 104.7 0.066 89.3 0.817 -53.6
1950 0.696 -134.3 5.54 102.7 0.066 90.6 0.820 -54.4
2000 0.700 -135.8 5.50 101.2 0.068 91.9 0.826 -55.3
2050 0.706 -137.3 5.41 99.0 0.070 92.6 0.832 -56.3
2100 0.712 -138.9 5.33 97.4 0.072 92.7 0.839 -57.4
2150 0.717 -140.4 5.24 95.0 0.073 93.0 0.844 -58.8
2200 0.718 -141.9 5.08 93.3 0.073 94.2 0.845 -60.1
2250 0.721 -143.2 4.99 91.2 0.074 96.2 0.849 -61.4
2300 0.724 -144.5 4.78 89.0 0.077 98.3 0.852 -62.9
2350 0.730 -145.6 4.64 87.7 0.081 99.2 0.858 -64.5
2400 0.735 -146.9 4.45 85.7 0.085 99.4 0.862 -66.5
2450 0.740 -147.9 4.33 85.4 0.087 99.3 0.867 -68.0
2500 0.746 -148.4 4.39 85.5 0.089 99.5 0.875 -69.1
MAX2323/MAX2325
Triple/Dual-Mode
CDMA LNA/Mixers
_______________________________________________________________________________________ 9
Table 5. Cellular Mixer S11 in High-Gain
High-Linearity Mode
Table 6. PCS Mixer S11 in High-Gain
High-Linearity Mode
FREQUENCY
(MHz)
S11
(MAG)
S11
(PHASE)
700 0.803 -17.5
750 0.792 -18.1
800 0.799 -18.8
850 0.769 -20.2
900 0.761 -21.9
950 0.751 -23.9
1000 0.738 -26.7
FREQUENCY
(MHz)
S11
(MAG)
S11
(PHASE)
1700 0.764 -42.6
1750 0.763 -44.1
1800 0.764 -45.8
1850 0.763 -47.3
1900 0.765 -48.5
1950 0.762 -50.0
2000 0.762 -50.1
2050 0.762 -50.0
2100 0.762 -49.9
2150 0.762 -49.9
2200 0.762 -50.0
2250 0.762 -50.0
2300 0.762 -49.9
2350 0.762 -50.1
2400 0.751 -64.4
2450 0.750 -64.3
2500 0.750 -64.2
MAX2323/MAX2325
Triple/Dual-Mode
CDMA LNA/Mixers
10 ______________________________________________________________________________________
Table 7. Mixer IF Port S22
DIGITAL MIXER
(SINGLE-ENDED) FM MIXER
FREQUENCY
(MHz) S22
(MAG)
S22
(PHASE)
FREQUENCY
(MHz) S22
(MAG)
S22
(PHASE)
50 0.999 -2.1 50 0.998 -1.7
100 0.997 -4.1 70 0.998 -2.5
110 0.996 -4.5 85 0.998 -2.8
130 0.995 -5.5 100 0.998 -3.6
150 0.994 -6.2 110 0.998 -4.0
200 0.993 -8.2 150 0.998 -5.4
210 0.992 -8.6 200 0.998 -7.2
250 0.986 -10.0 250 0.997 -8.9
300 0.983 -12.0 300 0.997 -10.6
350 0.982 -13.9 350 0.997 -12.1
400 0.977 -15.8 400 0.997 -13.8
MAX2323/MAX2325
Triple/Dual-Mode
CDMA LNA/Mixers
______________________________________________________________________________________ 11
2526
27
28 22
2324
8910 11 12 13 14
MODE
15
16
17
18
19
20
21
G1
G2
SLEEP BAND
1
2
3
4
5
6
7
VCC
MAX2323
CELLULAR
PCS
CELLULAR
PCS
VCC
CDMA
FM
VCC
CELLULAR LO
PCS LO
Typical Application Circuits
MAX2323/MAX2325
Triple/Dual-Mode
CDMA LNA/Mixers
12 ______________________________________________________________________________________
MODE
VCO
G1
G2
SLEEP
MAX2325
2526
27
28 22
2324
8910 11 12 13 14
15
16
17
18
19
20
21
1
2
3
4
5
6
7
VCC
CDMA
FM
VCC
VCC
Typical Application Circuits (continued)
MAX2323/MAX2325
Triple/Dual-Mode
CDMA LNA/Mixers
______________________________________________________________________________________ 13______________________________________________________________________________________ 13
DESIGNATION QTY DESCRIPTION
L7, L8 2 270nH ±2% inductors (0805)
Coilcraft 0805CS-271XGBC
L10 1 3.9nH ±0.3nH inductor (0603)
Murata LQG11A3N9S00
L11 1 330nH ±2% inductor (0805)
Coilcraft 0805CS-331XGBC
L12 1 2.7nH ±0.3nH inductor (0603)
Murata LQG11A2N7S00
R1, R4, R5,
R8, R10 51kΩ ±5% resistors (0402)
R2 1 24.3kΩ ±1% resistor (0402)
R3 1 20.0kΩ ±1% resistor (0402)
R7 1 2.7kΩ ±5% resistor (0402)
R11 1 8.2kΩ ±5% resistor (0402)
T1 1 Balun transformer (B5F type)
Toko 458DB-1011
PLNAIN,
CLNAIN,
LOLIN, LOHIN,
CLNAOUT,
PLNAOUT,
CDMAOUT,
FMOUT
8
SMA connectors (PC edge mount)
EFJohnson 142-0701-801 or
Digi-Key J502-ND
PMIXIN,
CMIXIN 2SMA connectors (vertical mount)
Digi-Key J500-ND
GND, VCC 2 Test points
Mouser 151-203
JU1, JU3, JU4,
JU7, JU9 5 3-pin headers
JU2, JU6, JU8,
JU10 4 2-pin headers
None 10 Shunts (JU1–JU4, JU6–JU10)
U1 1 MAX2323EGI (QFN-28)
None 1 MAX2323/MAX2325 data sheet
None 1 MAX2323 PC board
Component List
EV Kit Information
DESIGNATION QTY DESCRIPTION
C1, C4, C9,
C24, C29 5
0.01µF ±10% ceramic caps (0402)
Murata GRM36X7R103K016 or
Taiyo Yuden EMK105B103KW
C2, C3,
C21, C22, C27 5
100pF ±5% ceramic caps (0402)
Murata GRM36COG101J050 or
Taiyo Yuden UMK105CH101JW
C17 1
2.7pF ±0.1pF ceramic cap (0402)
Murata GRM36COG2R7B050 or
Taiyo Yuden EVK105CH2R7JW
C7 1
3.0pF ±0.1pF ceramic cap (0402)
Murata GRM36COG3R0B050 or
Taiyo Yuden EVK105CH3R0JW
C8 1
1.5pF ±0.1pF ceramic cap (0402)
Murata GRM36COG1R5B050 or
Taiyo Yuden EVK105CH1R5BW
C12 1 0Ω resistor (0402)
C6, C10 —Not installed
C11, C18, C19,
C26, C28,
C32, C33
7
1000pF ±10% ceramic caps (0402)
Murata GRM36X7R102K050 or
Taiyo Yuden UMK105B102KW
C5, C14, C16 3
6800pF ±10% capacitors (0402)
Murata GRM36X7R682K025 or
Taiyo Yuden TMK105B682KW
C15 1
1.0pF ±0.1pF ceramic cap (0402)
Murata GRM36COG010B050 or
Taiyo Yuden EVK105CH010BW
C23, C25 2 5.6pF ±0.25pF ceramic caps (0402)
Murata GRM36COG5R6C050
C31 1
4.3pF ±0.1pF ceramic cap (0402)
Murata GRM36COG4R3B050 or
Taiyo Yuden EVK105CH4R3JW
L1 1 8.2nH ±5% inductor (0603)
Murata LQG11A8N2J00
L2, L4 2 1.8nH ±10% inductors (0603)
Coilcraft 0603CS-1N8XKBC
L3, L6 2 0Ω resistors (0603)
L5 1 6.8nH ±5% inductor (0603)
Murata LQG11A6N8J00
MAX2323/MAX2325
Triple/Dual-Mode
CDMA LNA/Mixers
MAX2323
U1
CLNAOUT
RLNA
PLNAIN
GND
CLNAIN
SLEEP
G2
G1
RBIAS
IF+
IF-
GND
BAND
VCC
FM
GND PLNAOUT GND GND PMIXIN CMIXIN
GND LOLIN LOHIN GND GND GND MODE
JU2
C2
100pF L1
8.2nH
L4
1.8nH
C7
3.0pF
R2
24.3k
SMA
CLNAOUT
SMA
PLNAIN
C1
0.01µF
VCC
JU10
C3
100pF
L2
1.8nH
C4
0.01µF
VCC
C14
6800pF
SMA
CLNAIN
C16
6800pF
C15
1.0pF
L5
6.8nH
C17
2.7pF
C11
1000pF
JU1
VCC
R1
1k
C18
1000pF
C27
100pF
C26
1000pF
C28
1000pF
C29
0.01µF
JU3
VCC
R4
1k
C19
1000pF
JU4
VCC
R5
1k
SMA
LOLIN
C21
100pF
SMA
LOHIN
C22
100pF
R10
1k
JU9
VCC
C32
1000pF
SMA
FMOUT
JU8
L11
330nH
VCC
R11
8.2k
R7
2.7k
C33
1000µF
C31
4.3pF
VCC
GND
VCC
JU7
VCC
R8
1k
JU6
VCC L7
270nH
C24
0.01µF
C23
5.6pF
C25
5.6pF
L8
270nH
3
2
1
4
6
SMA
CDMAOUT
T1
458DB-1011
R3
20k
L6
0Ω
SMA
CMIXIN
L10
3.9nH
C10
OPEN
C9
0.01µF
L3
0Ω
SMA
PMIXIN
L12
2.7nH
C6
OPEN
C5
6800pF
SMA
PLNAOUT
C8
1.5pF
1
2
3
4
5
6
7
8 9 10 11 12 13 14
15
16
17
18
19
20
21
22232425262728
C12
0Ω
L9
OPEN
L12 POSITION: 1mm FROM C5
Figure 1. MAX2323 Evaluation Kit
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
14 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2000 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.
Package Information
For the latest package outline information, go to
www.maxim-ic.com/packages.
