3
Optoway
BTR-7720G
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Receiver Specifications (0oC < Topr < 70oC, 3.15 V < Vcc < 3. 47V)
Parameter
Symbol
Min
Typ
Max
Units
Notes
Optical
Sensitivity
---
Pin
Pa
---
-3
---
-22
---
dBm
dBm
dBm
dBm
dB
1
Maximum Input Power
Signal Detect -- Asserted
Signal Detect -- Deasserted
Signal detect -- Hysteresis
Wavelength of Operation
Optical Return Loss
---
---
---
---
-22
---
Transition: low to high
Transition: high to low
Pd
-31
1.0
1260
14
1360
nm
dB
2
ORL
Electrical
Data Output Voltage – Low
Data Output Voltage – High
SD Output Voltage -- Low
SD Output Voltage -- High
SD Output Voltage -- Low
SD Output Voltage -- High
VOL - VCC
VOH - VCC
VOL - VCC
VOH - VCC
VOL
-2.0
-1.1
-2.0
-1.1
0
-1.58
-0.74
-1.58
-0.74
0.8
V
V
V
V
V
V
3
3
BTR-7720G
BTR-7720CG
VOH
2.0
Vcc+0.3
Notes: 1. Minimum sensitivity and saturation levels at BER=1E-12 for a 27-1 PRBS.
2. At least 30 dB optical isolation for the wavelength 1480 to 1580 nm.
3. These outputs are compatible with 10K, 10KH and 100K ECL and LVPECL outputs.
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
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
N/C
Transmitter Signal Ground 9 (Tx GND)
PIN
1
Symbol
Notes
Rx GND
RD+
Directly connect this pin to the receiver ground plane
See recommended circuit schematic
2
3
RD-
See recommended circuit schematic
4
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
5
6
Rx Vcc
Tx Vcc
TD-
7
8
TD+
See recommended circuit schematic
9
Tx GND
Directly connect this plan to the trransmitter ground plane
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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 ]
