3
Optoway
BTRS-7940CG
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CONNECTION DIAGRAM
PIN
1
Symbol
VEE
Notes
r
Directly connect this pin to the receiver ground plane
+3.3V dc power for the receiver section
2
VCC
SD
r
3
4
Active high on this indicates a received optical signal.
Receiver Dataout Bar. See recommended circuit schematic
Receiver Dataout. See recommended circuit schematic
+3.3V dc power for the transmitter section
RD-
5
RD+
VCC
6
t
7
VEE
t
Directly connect this plan to the transmitter ground plane
Transmitter Disable. Connect this pin to +3.3V TTL logic “1” to disable module
To enable module connect to TTL logic low “0”
8
TxDis
9
TD+
TD-
MS
Transmitter Data In. See recommended circuit schematic
Transmitter Data In Bar. See recommended circuit schematic
Mounting Studs. Connect to Chassis Ground
10
MS
RECOMMENDED CIRCUIT SCHEMATIC
Vcc3.3V
depend on customer's PHY
terminate and bias inside Transceiver module
TD-
Z=50R
Z=5OR
LVPECL
TD+
130R
130R
TXDis(LVTTL)
Vcc3.3V
1uH
10nF
10nF 10uF
10uF
PHY DEVICE
1uH
BTRS-7XXXC
Vcc3.3V
10nF
10uF
RD+
RD-
100R
LVPECL
Z=50R
Z=5OR
depend on customer's PHY
SD
TO LVTTL STAGE
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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 ]
