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SPB-7940G Datasheet(PDF) 3 Page - Optoway Technology Inc

No. de Pieza. SPB-7940G
Descripción  1490 nm TX / 1310 nm RX , 3.3V / 1250 Mbps Single-Fiber SFP Transceiver
Descarga  6 Pages
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Fabricante  OPTOWAY [Optoway Technology Inc]
Página de inicio  http://www.optoway.com.tw
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SPB-7940G Datasheet(HTML) 3 Page - Optoway Technology Inc

   
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Optoway
SPB-7940G
***********************************************************************************************************************************************************************
**********************************************************************************************************************************************************************
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
1/1/2008
V3.0
3
Receiver Specifications (0
oC < Topr < 70oC, 3.1 V < Vcc < 3. 5V)
Parameter
Symbol
Min
Typ
Max
Units
Notes
Optical
Sensitivity
---
---
---
-23
dBm
5
Maximum Input Power
Pin
-3
---
---
dBm
Signal Detect -- Asserted
Pa
---
---
-23
dBm
Transition: low to high
Signal Detect -- Deasserted
Pd
-40
---
---
dBm
Transition: high to low
Signal detect -- Hysteresis
1.0
---
dB
Wavelength of Operation
1260
1360
nm
6
Optical Return Loss
ORL
14
dB
Electrical
Differential Output Voltage
VOH – VOL
0.6
2.0
V
Output LOS Voltage -- Low
VOL
0
0.5
V
7
Output LOS Voltage – High
VOH
2.0
Vcc+0.3
V
7
Signal Detect Assert Time
ASMAX
100
µs
OFF to ON
Signal Detect Deassert Time
ANSMAX
300
µs
ON to OFF
Notes: 5. Minimum sensitivity and saturation levels at BER 1E-12 for a 2
7-1 PRBS.
6. At least 30 dB optical isolation for the wavelength 1480 to 1500 nm.
7. Open collector compatible, 4.7K to 10K ohm pull-up to Vcc (Host Supply Voltage).
RECOMMENDED CIRCUIT SCHEMATIC
10nF
10
μF
10nF
10
μF
VeeR
POST
Amp
LD
Driver
Z=50
Ω
Z=50
Ω
Z=50
Ω
Z=50
Ω
VeeT
1
μH
1
μH
TD -
TD +
VccT
VccR
RD -
RD +
100
Ω
SFP module
SerDes
100
Ω
LOS
RD -
RD +
TD -
TD +
10nF
10
μF
Protocol
EEPROM
MODULE DETECT
SCL
SDA
LOSS OF SINGAL
Tx_DISABLE
Tx_FAULT
MOD_DEF(0)
MOD_DEF(1)
MOD_DEF(2)
4.7K to 10K
Ω
4.7K to 10K
Ω
4.7K to 10K
Ω
4.7K to 10K
Ω
Tx_FAULT
Tx_DISABLE
(1,17,20)
3
2
18
19
16
15
12
13
8
(9,10,11,14)
6
5
4
4.7K to 10K
Ω
Vcc 3.3V
Vcc 3.3V
IC
IC
depending on SERDES


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