Optoway
FEATURES
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BTRS-7840CG
1
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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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DESCRIPTION
Bi-Directional Single-Fiber Transceiver
Compliant with IEEE 802.3ah 1000BASE-BX
1310 nm DFB LD Transmitter
1490 nm Receiver
1550 nm Enhanced Band Block
20 dB Power Budget At Least
Link distance up to 40 km
Single +3.3 V Power Supply
RoHS Compliant
LVPECL Differential Inputs and Outputs
LVTTL Signal Detect Output
0 to 70
o
C Operating: BTRS-7840G
-20 to 85
o
C Operating: BTRS-7840AG
Class 1 Laser International Safety Standard IEC-60825
Compliant
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-TRX
TM
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
limiting post-amplifier IC. A PECL logic interface
simplifies interface to external circuitry.
APPLICATIONS
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WDM Gigabit Ethernet Links
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SONET/SDH Equipment Interconnect
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Fiber Channel Links
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.
TX
(nm)
RX
(nm)
Voltage
(V)
3.3
3.3
Package
Temp
(
o
C)
0 to 70
-20 to 85
TX
Power
(dBm)
2 to -3
2 to -3
RX Sens.
RoHS
(dBm) Compliant
-23
-23
Yes
Yes
ORDER INFORMATION
P/No.
Bit Rate Distance
IEEE
(Gb/s)
802.3ah
(km)
1000BASE
BX
BX
1.25
1.25
40
40
BTRS-7840CG
BTRS-7840ACG
1310 DFB 1490
1310 DFB 1490
SC, 2X5
SC, 2X5
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
Topr
Min
-40
0
-20
Max
85
70
85
260
3.6
Vcc
30
Units
o
C
o
C
Notes
BTRS-7840CG
BTRS-7840ACG
air flow 1m/sec
10 seconds on leads only
Soldering Temperature
Power Supply Voltage
Input Voltage
Output Current
---
Vcc
---
Iout
o
0
GND
0
C
V
V
mA
Recommended Operating Conditions
Parameter
Power Supply Voltage
Operating Temperature
Symbol
Vcc
Topr
Min
3.13
0
-20
Typ
3.3
Max
3.47
70
85
Units / Notes
V
o
C / BTRS-7840CG
o
C / BTRS-7840ACG
air flow 1m/sec
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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
OPTOWAY [ OPTOWAY TECHNOLOGY INC ]
