1
Optoway
BTRS-7840CG
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BTRS-7840C / BTRS-7840C-SP / BTRS-7840AC / BTRS-7840AC-SP
1310 nm TX/ 1490 nm RX , 3.3V / 1250 Mbps RoHS Compliant Single-Fiber Transceiver
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FEATURES
DESCRIPTION
l Bi-Directional Single-Fiber Transceiver
l Compliant with IEEE 802.3ah 1000BASE-BX
l 1310 nm DFB LD Transmitter
l 1490 nm Receiver
The BTRS-7840CG series is high performance module for
single fiber communications by using 1310 nm transmitter
and 1490 nm receiver. This module is equipped with
3W-TRXTM OE device to reject 1.55 um high power
video signal. The transmitter section uses a multiple
quantum well 1310 nm DFB laser and is a class 1 laser
compliant according to International Safety Standard
IEC-60825. The receiver section is designed to receive 1490
nm and block 1550 nm signal. This feature is suitable for
IEEE 802.3ah 1000BASE-BX and ITU-T 983.3 application.
The receiver section uses an integrated 1490 nm detector
preamplifier (IDP) mounted in an optical header and a
l 1550 nm Enhanced Band Block
l 20 dB Power Budget At Least
l Link distance up to 40 km
l Single +3.3 V Power Supply
l RoHS Compliant
l LVPECL Differential Inputs and Outputs
l LVTTL Signal Detect Output
l 0 to 70oC Operating: BTRS-7840G
l -20 to 85oC Operating: BTRS-7840AG
l Class 1 Laser International Safety Standard IEC-60825
Compliant
limiting post-amplifier IC.
simplifies interface to external circuitry.
A PECL logic interface
LASER SAFETY
APPLICATIONS
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.
l WDM Gigabit Ethernet Links
l SONET/SDH Equipment Interconnect
l Fiber Channel Links
ORDER INFORMATION
P/No.
Bit Rate
(Gb/s)
IEEE
802.3ah
1000BASE
BX
Distance
(km)
TX
RX
Voltage
(V)
Package
Temp
(oC)
TX
RX Sens.
RoHS
(nm)
(nm)
Power
(dBm)
2 to -3
2 to -3
(dBm) Compliant
BTRS-7840CG
1.25
1.25
40
40
1310 DFB 1490
1310 DFB 1490
3.3
3.3
SC, 2X5
SC, 2X5
0 to 70
-23
-23
Yes
Yes
BTRS-7840ACG
BX
-20 to 85
Note: 1. BTRS-XXXXXG is SC/PC receptacle type package with standard case
2. BTRS-XXXXX-APBBBG is 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
Storage Temperature
Operating Temperature
Symbol
Tstg
Min
-40
0
Max
85
Units
oC
oC
Notes
Topr
70
BTRS-7840CG
-20
85
BTRS-7840ACG
air flow 1m/sec
Soldering Temperature
Power Supply Voltage
Input Voltage
---
Vcc
---
260
3.6
oC
V
10 seconds on leads only
0
GND
0
Vcc
V
Output Current
Iout
30
mA
Recommended Operating Conditions
Parameter
Power Supply Voltage
Operating Temperature
Symbol
Min
3.13
0
Typ
Max
3.47
70
Units / Notes
V
oC / BTRS-7840CG
oC / BTRS-7840ACG
air flow 1m/sec
Vcc
3.3
Topr
-20
85
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OPTOWAY TECHNOLOGY INC. No.38, 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 10/1/2009 V3.0