
Optoway                          
BTRS-7620CG
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BTRS-7620CG / BTRS-7620ACG 
1310 nm  TX  / 1550 nm RX , 3.3V / 1250 Mbps 
RoHS Compliant
 Single-Fiber Transceiver 
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FEATURES 
l
Single Fiber  Bi-Directional SFF Transceiver 
l
1310 nm Transmitter 
l
1550 nm Receiver 
l
14 dB Link Power Budget At Least 
l
Distance Up to 20 km 
l
Single +3.3 V Power Supply 
l
RoHS Compliant 
l
0 to 70
o
C Operating: BRS-7620CG 
l
-20 to 85
o
C Operating: BRS-7620ACG 
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Speed up to  1300 Mbps 
l
LVTTL Signal Detect Output  
l
PECL Differential Inputs and Outputs 
l
Wave Solderable and Aqueous Washable 
l
Class 1 Laser International Safety Standard IEC-60825 
Compliant 
APPLICATIONS 
l
WDM Gigabit Ethernet  Links 
l
SONET/SDH Equipment Interconnect 
l
Fiber Channel Links 
ORDER INFORMATION 
P/No.
Bit Rate 
(Gb/s)
(km) 
(nm) 
(nm) 
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OPTOWAY TECHNOLOGY INC.  
No
.3
8, Kuang Fu S. Road, Hu Kou, Hsin Chu Industrial Park, Hsin Chu, Taiwan 303 
                            Tel: 886-3-5979798                       Fax: 886-3-5979737 
                            E-mail: sales@optoway.com.tw    http: // www.optoway.com.tw         10/1/2005  V2.0 
1 
DESCRIPTION 
The BTRS-7620CG series is high performance module for 
single fiber communications by using 1310 nm transmitter 
and 1550 nm receiver. The transmitter  section  uses  a  
multiple  quantum well laser  and is a class 1 laser compliant 
according to International Safety Standard IEC-60825. The 
receiver section uses an integrated 1550 nm detector 
preamplifier (IDP) mounted in an optical header and a 
limiting post-amplifier IC. A PECL logic interface 
simplifies interface to external circuitry. LV-TTL Signal 
Detect is used. 
LASER SAFETY
This single mode transceiver is a Class 1 laser product. It 
complies with IEC-60825 and FDA 21 CFR 1040.10 and 
1040.11.  The transceiver must be operated within the 
specified temperature and voltage limits. The optical ports 
of the module shall be terminated with an optical connector 
or with a dust plug. 
Distance 
TX 
RX 
Voltage 
(V) 
Package 
Temp 
(
o
C) 
TX 
Power 
(dBm) 
-3 to -8 
-3 to -8 
RX Sens. 
(dBm) 
RoHS 
Compliant 
BTRS-7620CG 
BTRS-7620ACG 
Note: 1. BTRS-XXXXXG is SFF SC receptacle type package. 
          2. BTRS-XXXXX-APBBBG is SFF pigtail type package with different connector, A=S is SC connector, A=F is FC 
connector, A=T is ST connector, A=L is LC connector, A=M is MU connector; BBB is the length of fiber in cm. 
Absolute Maximum Ratings 
Parameter 
Symbol 
Min 
Storage Temperature 
Tstg 
-40 
Operating Temperature 
Topr 
0 
-20 
Soldering Temperature 
--- 
Power Supply Voltage 
Vcc 
0 
Input Voltage 
--- 
GND 
Output Current 
Iout 
0 
Recommended Operating Conditions 
Parameter 
Symbol 
Min 
Power Supply Voltage 
Vcc 
3.13 
Operating Temperature 
Topr 
0 
-20 
Data Rate 
Power Supply Current 
Icc 
1.25
1.25
20 
20 
1310 
1310 
1550 
1550 
3.3 
3.3 
SC, 2X5 
SC, 2X5 
-20 to 85 
0 to 70 
-22 
-22 
Yes 
Yes 
Max 
85 
70 
85 
260 
3.6 
Vcc 
30 
Units 
o
C 
o
C 
Notes 
BTRS-7620CG 
BTRS-7620ACG/air flow 1m/sec 
10 seconds on leads only 
o
C 
V 
V 
mA 
Typ 
3.3 
Max 
3.47 
70 
85 
1300 
260 
Units / Notes 
V 
o
C  / BTRS-7620CG 
o
C  / BTRS-7620ACG 
Mb/s 
mA