3
Optoway
BTR-7600MG
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CONNECTION DIAGRAM
Receiver Signal Ground 1 (Rx GND)
Receiver Data Out 2 (RD+)
Receiver Data Out Bar 3 (RD- )
Signal Detect 4 (SD)
N/C
N/C
Receiver Power Supply 5 (Rx Vcc)
Transmitter Power Supply 6 (Tx Vcc)
Transmitter Data In Bar 7 (TD- )
Transmitter Data In 8 (TD+)
TOP VIEW
Transmitter Signal Ground 9 (Tx GND)
PIN
1
2
Symbol
Notes
Rx GND
RD+
Directly connect this pin to the receiver ground plane
See recommended circuit schematic
3
RD-
See recommended circuit schematic
4
5
SD
Active high on this indicates a received optical signal
+3.3V dc power for the receiver section
+3.3V dc power for the transmitter section
See recommended circuit schematic
Rx Vcc
Tx Vcc
TD-
6
7
8
TD+
See recommended circuit schematic
9
Tx GND
Directly connect this plan to the trransmitter ground plane
RECOMMENDED CIRCUIT SCHEMATIC
Vcc3.3V
Vcc3.3V
Vcc3.3V
R2
NA
R3
NA
C9
MICROSTRIP5
TD-
Z=50R
MICROSTRIP6
100nF
C10
LVPECL
R1
NA
TD+
R4
NA
Z=5OR
100nF
L2
Vcc3.3V
1uH
C2
U2
9
8
7
6
5
4
3
2
1
C3
100nF
C4
10uF
TXGND
TD+
TD-
TXVCC
RXVCC
SD
RD-
RD+
RXGND
100nF
L1
1uH
PHY DEVICE
C1
100nF
C8
10uF
BTR-77XX(C)/76XX(C)
Vcc3.3V
RD+
LVPECL
MICROSTRIP7
C12
R14
100R
Z=50R
100nF
R21
1K
MICROSTRIP8
RD-
Z=5OR
C11 100nF
SD / LVPECL
The split-load terminations for ECL signals need to be located at the input of devices receiving those ECL signals. The power
supply filtering is required for good EMI performance. Use short tracks from the inductor L1/L2 to the module Rx Vcc and Tx
Vcc. A GND plane under the module is required for good EMI and sensitivity performance.
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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
10/1/2005 V2.0
OPTOWAY [ OPTOWAY TECHNOLOGY INC ]
