- 1 / 9 -
(SDT8028-T_-Q_)
Specification : TS-S96D048F
July, 2001
155.52Mb/s 622.08Mb/s other _________
_
Transmitter Receiver Transceiver
Short Haul Long Haul
Intermediate Reach Long Reach
Single 5.0 V Single 3.3 V other _________
_
1.3 µm 1.55 µm other _________
_
( 2R / 3R ) ( 2R / 3R )
other _________
_
Technical Specification
for
2.5Gbps Fiber Optic Transmitter Module
SDT8028-T_-Q_
Sumitomo Electric reserves the right to make changes in the specification without prior notice.
2488.32Mbps
Intra Office
Short Reach
#Safety Precaution Symbols This specification uses various picture symbols to prevent possible injury to operator or
other persons or damage to properties for appropriate use of the product. The symbols and definitions are as shown below. Be sure to be
familiar with these symbols before reading this specification.
Warning Wrong operation without following this instruction may lead to human death or serious injury.
Caution Wrong operation without following this instruction may lead to human injury or property damage.
Example of picture symbols indicates prohibition of actions. Action details are explained thereafter.
indicates compulsory actions or instructions. Action details are explained thereafter.
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(SDT8028-T_-Q_)
Specification : TS-S96D048F
July, 2001
1. General
The features of SDT8028-T_-Q_ are listed below:
* SDH STM-16 I-16 / SONET OC-48 SR-1 Compliant
* Power Supply Voltage Single +5V ( or -5V )
* Low Power Supply Current 150mA (typ.)
* Compact Package Size 36 X 15 X 9 mm
* Pin Configuration 24 pin Dual in Line
* Uncooled Laser Diode with Automatic Optical Power Control Circuit
* Laser Diode 1300nm InGaAsP / InP, FP-LD
* Optical Output Shut-down Function (Disable Function)
* Laser Bias Current Alarm Function.
* Laser Bias Monitor / Rear Facet Monitor Function.
* Clocked / Non-clocked mode selector
* Optical Connector Interface FC / SC / MU connector
2. Block Diagram
TD
D F/F
Input
Buffer
A utom atic
Power
Control Circuit
TDb
TCLK
TCLKb
VTTC
VTTD
LD
Monitor
PIN-PD
Bias
Circuit
Modulation
Circuit
0
1
BM (+)
B M (-)
RFM (+)
RFM (-)
ALM
Input
Buffer
Disable
Selector
TD
D F/F
Input
Buffer
A utom atic
Power
Control Circuit
TDb
TCLK
TCLKb
VTTC
VTTD
LD
Monitor
PIN-PD
Bias
Circuit
Modulation
Circuit
0
1
BM (+)
B M (-)
RFM (+)
RFM (-)
ALM
Input
Buffer
Disable
Selector
Figure 1. Block Diagram
*Clocked Operation Mode
(V s= Vs lct)
*Non-Clocked Operation M ode
(Vs=Vnslct)
H:High Level, L:Low Level, φ:H or L
Q0:Previous optical output status
before data input condition defined
H:High Level, L:Low Level
Data Input Optical Data Input Optical
TD TDb TCLK TCLKb Output TD TDb Output
HL H HL H
LH L LH L
φφLHQ0
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(SDT8028-T_-Q_)
Specification : TS-S96D048F
July, 2001
4. Pin Assignment
3. Package Dimension
Caution
Do not disassemble this product. Otherwise, failure, electrical shock, overheating or fire may occur.
Handle the lead pins carefully. Use assisting tools or prospective aids as required. A lead pin may injure skin or human body
Pin Symbol I/O Level Description
1 Vcc +5V Positive power supply (+5V)
2 Vcc +5V
3 RFM(+) O Analog Rear facet PD current monitor voltage (positive)
4 RFM(-) O Analog Rear facet PD current monitor voltage (negative)
5 TDb I PECL Differential data input (negative)
6 VTTD Vcc-2V Data input signal termination, Vcc-2V supply for DC PECL interface.
(AC GND) Or pull down to GND via a capacitor for AC coupled interface.
7 TD I PECL Differential data input (positive)
8 NC No user connection
9 Vcc +5V Positive power supply (+5V)
10 Vcc +5V Positive power supply (+5V)
11 Vee GND Negative power supply (GND)
12 Vee GND Negative power supply (GND)
13 Vee GND Negative power supply (GND)
14 Vee GND Negative power supply (GND)
15 ALM O TTL LD bias current alarm, normal low, active high
16 Disable I TTL Transmitter disable input. Default (open) LOW and transmitter is enabled.
17 Selector I Signal input mode selector, clocked or non-clocked.
Default (open) LOW and clocked mode.
18 TCLK I PECL Differential clock input (positive)
19 VTTC Vcc-2V Clock input signal termination, Vcc-2V supply for DC PECL interface.
(AC GND) Or pull down to GND via a capacitor for AC coupled interface
20 TCLKb I PECL Differential clock input (negative)
21 BM(-) O Analog LD bias current monitor voltage (negative)
22 BM(+) O Analog LD bias current monitor voltage (positive)
23 Vcc +5V Positive power supply (+5V)
24 Vcc +5V Positive power supply (+5V)
NC pins should left open for additional functions in the future
Figure 2. Package Dimension
15.24
14.32
PIN13
PIN24
PIN1 PIN12 t=0.25 1.5
3.9
0.5
UNIT:mm
36.4
φ
6.8
φ
4.9
φ
0.9
23.5
2.54PX11=27.94
14.4
600+/-50
4.2
Figure 2. Package Dimension
+0.2
-0.1
+0.2
-0.2
+0.2
-0.2
+0.2
-0.2
8.9
+0.1
-0.2 +0.1
-0.2
+0.1
-0.1 +0.5
-0.5
+0.1
-0.1
+0.3
-0.05 +0.2
-0.1
+0.5
-0.5
+0.1
-0.05
pin dimension
- 4 / 9 -
(SDT8028-T_-Q_)
Specification : TS-S96D048F
July, 2001
5. Absolute Maximum Ratings
6. Electrical Interface
( Unless otherwise specified, Vcc-Vee = 4.75 to 5.25 V @2488.32Mbps, PRBS2^23-1, 50% duty
and all operating temperature shall apply.)
Warning
Use the product with the rated voltage described in the specification. If the voltage exceeds the maximum rating, overheating or fire
may occur.
Caution
Do not store the product in the area where temperature exceeds the maximum rating, where there is too much moisture or damp-
ness, where there is acid gas or corrosive gas, or other extreme conditions. Otherwise, failure, overheating or fire may occur.
1. Termination current is not included. 2. Measured between each signal input and VTTD or VTTC. Refer to Figure 3.
3. Refer to Figure 4. 4. Default (Open) normal operation. 5. Default (Open) clocked mode. 6. Alarm will be launched when LD bias
current exceeds 70mA typ. 7. LD bias current can be monitored by measuring the voltage difference between BM(+) Pin 22 and BM(-) Pin
21. Please refer to Figure 5. 8. Rear Facet PD current can be monitored by measuring the voltage difference between RFM(+) Pin 3 and
RFM(-) Pin 4. Please refer to Figure 5. 9. High input impedance ( > 1MΩ) device is required to measure this voltage.
Parameter S
y
mbol Min. T
yp
. Max . Uni t N ote
Su
pp
l
y
Volta
g
e Vcc-Vee 4.75 5.00 5.25 V
Su
pp
l
y
Current Id 150 200 mA 1
In
p
ut Im
p
edance
(
Data and Clock
)
Rin 50 Ω2
In
p
ut Volta
g
eHi
g
hV
IH Vcc-1.00 Vcc-0.90 Vcc-0.70 V
(
Data and Clock, for ECL or PECL interface
)
Low VIL Vcc-1.90 Vcc-1.70 Vcc-1.60 V
Differential In
p
ut Volta
g
e Swin
g
for AC cou
p
led interface Vin 0.45 0.80 1.20 V
p
-
p
In
p
ut Si
g
nal Rise Time
(
20% - 80%
)
Tr 100 120
p
s
In
p
ut Si
g
nal Fall Time
(
20% - 80%
)
Tf 100 120
p
s
Setu
p
Time
(
for clocked mode
)
Tset 130
p
s3
Hold Time
(
for clocked mode
)
Thold 75
p
s3
Disable In
p
ut Volta
g
e Disable Vdisbl Vee+2.00 Vcc V 4
Enable Venbl Vee Vee+0.8 V
Selector In
p
ut Volta
g
e Clocked Vslct Vee Vee+1.5 V 5
Non Clocked Vnclct Vcc-1.5 Vcc V
LD Bias Alarm Out
p
ut Volta
g
e Normal Valml Vee Vee+0.5 V 6
Abnormal Valmh Vcc-1.00 Vcc V
LD Bias Monitor Volta
g
e
(
between
p
in 22 and
p
in 21
)
Vbm 0.01 0.10 0.50 V 7, 9
Rear Facet PD monitor Volta
g
e
(
between
p
in 3 and
p
in 4
)
Vrfm 0.01 0.10 0.25 V 8, 9
Parameter S
mbol min. Max Unit Note
Stora
g
e Case Tem
p
erature Ts -40 85 °C 1
O
p
eratin
g
Case Tem
p
erature TC070°C1
Su
pp
l
y
Volta
g
e Vcc-Vee 0.0 6.0 V 2
In
p
ut Volta
g
eViVeeVccV3
Lead Solderin
g
(
Tem
p
erature
)
260 °C 4
(
Time
)
10 sec.
Note 1. No condensation allowed. 2. Vcc>Vee, Vcc=+5.0V for Vee=GND or Vcc=GND for Vee=-5.0V
3. Data, Clock, Disable and Selector 4. Measured on lead pins 2mm (0.079in.) off the package bottom
Rin
Rin
10kΩ
Rin
Rin
Vref = Vcc - 1.4V typ.
TD
VTTD
TCLK
VTTC
10kΩ
10kΩ
10kΩ
Vref
Vref
TDb
TCLKb
Figure 3. Data and Clock Input Interface
T= 400 psec
TD
TCLK
Tset Thold
TDb
TCLKb
Figure 4. Input Data and Clock Timing
- 5 / 9 -
(SDT8028-T_-Q_)
Specification : TS-S96D048F
July, 2001
7. Optical Interface
( Unless otherwise specified, Vcc-Vee = 4.75 to 5.25 V @2488.32Mbps, PRBS2^23-1, 50% duty
and all operating temperature shall apply. )
Warning
Do not look at the laser beam projection area (e.g. end of optical connector) with naked eyes or through optical equipment while
the power is supplied to this product. Otherwise, your eyes may be injured.
Parameter S
y
mbol Min. T
yp
. Max. Unit Note
O
p
tical Out
p
ut Power Po -10.0 -3.0 dBm
O
p
tical Out
p
ut Power
(
disable
)
Podis -45.0 dBm
Extinction Ratio Er 8.2 dB
Center Wavelen
g
th λc 1266 1360 nm
S
p
ectral Width
(
RMS
)
∆λ 4.0 nm
Out
p
ut E
y
e Dia
g
ram Com
p
liant with Bellcore G-253 CORE and ITU G957 1
Note1. Refer to Figure 6 for the eye diagram mask
LD
Monitor
PIN-PD
Vcc
Bias
Circuit
200Ω
3kΩ
10Ω
Pin 3
RFM (+)
Pin 21
B M (-)
Pin 22
BM (+)
Pin 4
R FM (-)
APC
Circuit
3kΩ3kΩ
3kΩ
Figure 5. BM and RFM Interface
1.25
1.00
0.75
0.25
0
-0.2 5
0.20
UI
Tim e (UI)
01.0
Normalized Amplitude
Logic " 1 "
Logic " 0 "
Figure 6. Eye Diagram Mask for Optical Output
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(SDT8028-T_-Q_)
Specification : TS-S96D048F
July, 2001
8. Recommended User Interface
9. Fiber Pigtail Specification
Caution
Do not give undue force or impact to the optical fiber pigtail. A broken optical fiber may injure skin or human body, or a strong laser
beam may cause eye injury. Operate the equipment carefully. Use assisting tools or prospective aids as required.
Parameter Min. T
yp
.Max.Unit Note
Core Diameter 9.5 µm
Claddin
g
Diameter 125 µm
Outer Diameter 0.9 mm
O
p
tical Cord Tensile Beak Stren
g
th 9.8 N 1
Bend Radius 30 mm
Figure 7. Recommended Power Supply Filtering
FB1
C1 C2
Vcc
(+ 5V)
C1 : 100µF
C2 : 1 µF
FB1 : Ferrirte Bead (TDK
ZBF253D-00)
SDT8028-T
Vcc (1, 2, 9, 10, 23, 24)
Vee (11, 12, 13, 14)
Figure 8. Data and Clock Interface with PECL/ECL Device ( DC coupled Interface )
Vcc - 2V
Vcc - 2V
Data
Clock
PECL/ECL Buffer
50 ohm Transmission Line
TD
TDb
VTTD
TCLK
TCLKb
VTTC
SDT8028-T
22 nF
22 nF
Figure 9. Data and Clock Interface with PECL/ECL Device ( AC coupled Interface )
Data
Clock
PECL/ECL Buffer
50 ohm Transmission Line
TD
TDb
VTTD
TCLK
TCLKb
VTTC
SDT8028-T
C1 (for TD , TD , VTTD) : 22 nF
C2 (for TCLK, TCLK , VTTC) : 100pF
Vee ( Buffer)
Vee ( Buffer)
Vee ( Buffer)
Vee ( Buffer)
C1
C2
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(SDT8028-T_-Q_)
Specification : TS-S96D048F
July, 2001
10. Characteristic Information
Temperature (°C)
128
0
130
0
132
0
134
0
136
0
-50 0 50 100
Center Wavelength
Center Wavelength (nm)
Temperature (°C)
-10
-9
-8
-7
-6
-5
-4
-3
-50 0 50 100
Optical Output Power
Optical Output Power (dBm)
0
1
2
3
4
-50 0 50 100
Spectral Width
Spectral Width (nm)
Temperature (°C)
Temperature (°C)
10
12
14
16
18
20
-50 0 50 100
Extinction Ratio
Extinction Ratio (dB)
Temperature (°C)
120
130
140
150
160
170
180
190
200
-50 0 50 100
Supply Current
Supply Current (mA)
Temperature (°C)
0
50
100
150
200
250
-50 0 50 100
Rear Facet Monitor
Rear Facet Monitor(mV)
Temperature (°C)
0
100
200
300
400
500
-50 0 50 100
LD Bias Monitor
LD Bias Monitor (mV)
- 8 / 9 -
(SDT8028-T_-Q_)
Specification : TS-S96D048F
July, 2001
11. Reliability Test
Caution
If this product is used under conditions not recommended in the specification or this product is used with unauthorized revision,
classfication for laser product safety standard is invalid. Classify the product again at your responsibility and take appropriate
actions.
12. Laser Safety
This product uses a semiconductor laser system and is a laser class 1
product acc. FDA, complies with 21CFR1040. 10 and 1040.11. Also
this product is a laser class 1 product acc. IEC 825-1.
Bellcore TA-NWT-000983 Issue 2, December 1993
Heading Test Reference Condition Sampling SEI Result
LTPD SS C SS F/C
Mechanica
l
Mechanical MIL-STD-883 Condition B
Integrity Shock Method 2002 5 times/axis
500G, 1.0 ms 20% 11 0 --- ---
1,500G, 0.5ms 20% 11 0 11 0
Vibration MIL-STD-883 Condition A 20% 11 0 11 0
Method 2007 20 G
20-2,000 Hz
4 min/cycle; 4 cycles/axis
Thermal Shock MIL-STD-883 ∆T=100°C 20% 11 0 11 0
Method 1011
Solderability MIL-STD-883 (steam aging not required) 20% 11 0 11 0
Method 2003
Fiber Pull 1 Kg; 3 times;5sec. 20% 11 0 --- ---
2 Kg; 3 times; 5sec. 20% 11 0 --- ---
Endurance Accel. Aging (R)-453 +85C; rated power
(High Temp.) Section 5.18 >5,000hrs. --- 25 --- 25 0
>10,000hrs. --- 10 --- --- ---
High Temp. ---------- max. storage T (T=85°C) 20% 11 0 --- ---
Storage >2,000
Low Temp. ---------- min. storage T (T=-40°C) 20% 11 0 11 0
Storage >2,000
Temperature Section 5.20 - 40°C to +85°C
Cycling 400 times pass/fail 20% 11 0 --- ---
500 times for info. --- 11 --- --- ---
500 times pass/fail 20% 11 0 11 0
1000 times for info. --- 11 --- 11 0
Damp Heat MIL-STD-202 M103 40°C , 95%, 56days 20% 11 0 11 0
(if using epoxy) or IEC 68-2-3 or 85°C /85%RH 2,000hrs
.
20% 11 0 --- ---
Cyclic Moisture Section 5.23 ---------- 20% 11 0 11 0
Resistance
Special Internal MIL-STD-883 < 5,000 ppm 20% 11 0 11 0
Tests Moisture Method 1018 water vapor
Flammability TR357:Sec. 4.4.2.5 ----------- ---- ---- --- ---- OK
ESD Threshold Section 5.22 ----------- ---- 6 --- 6 0
Class 1 Laser Product
- 9 / 9 -
(SDT8028-T_-Q_)
Specification : TS-S96D048F
July, 2001
13. Ordering Information
14. Other Precaution
Under such a strong vibration environment as in automobile, the performance and reliability are not guaranteed.
The governmental approval is required to export this product to other countries. To dispose of these compo-
nents, the appropriate procedure should be taken to prevent illegal exportation.
This module must be handled, used and disposed of according to your company's safe working practice.
15. For More Information
Caution
Be sure to turn the power off when you touch this product connected to the printed circuit boards. Otherwise, electric shock may occur.
Dispose this product or equipment including this product properly as an industrial waste according to the regulations.
Warning
Be sure to carry out correct soldering for connection to peripheral circuits in order to prevent contact failure or short-circuit. Other-
wise, a strong laser beam may cause eye injury, overheating or fire.
Do not put this product or components of this product into your mouth. This product contaions material harmful to health.
U.S.A.
ExceLight Communications, 4021 Stirrup Creek Drive, Suite 200 Durham, NC 27703
Tel. +1-919-361-1600 / Fax. +1-919-361-1619
E-mail: info@excelight.com
http://www.excelight.com
Europe
Sumitomo Electric Europe Ltd., 220, Centennial Park, Elstree, Herts, WD6 3SL, United Kingdom
Tel. +44-208-953-8681
Fax. +44-208-207-5950
E-mail: photonics@sumielectric.com
http://www.sumielectric.com
Japan
Sumitomo Electric Industries, Ltd. ( International Business Division ), 3-12, Moto-Akasaka 1-chome
Minato-ku Tokyo 107-8468
Tel. +81-3-3423-5771 / Fax. +81-3-3423-5099
E-mail: product-info@ppd.sei.co.jp
http://www.sei.co.jp/Electro-optic/index_e.html
Orderin
g
Number Pi
g
tail len
g
th : L Connector t
yp
e
SDT8028-TC-QN 600 +/- 50mm SC
SDT8028-TD-QN 600 +/- 50mm FC / PC
SDT8028-TM-NN 450 +/- 50mm MU-J
SDT8028-TU-NN 450 +/- 50mm MU