SPB-9820G_15 Datasheet, PDF (3/6 Pages) Optoway Technology Inc – 2.5 Gbps Single-Fiber SFP Transceiver

Optoway
3
SPB-9820G
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Receiver Specifications (0^oC < Topr < 70^oC, 3.13 V < Vcc < 3.47V)
Parameter
Symbol
Min
Typ
Max
Units
Notes
Optical
Sensitivity
---
---
---
-18
dBm
4
Maximum Input Power
Pin
0
---
---
dBm
Signal Detect -- Asserted
Signal Detect -- Deasserted
Pa
---
---
-18
dBm Transition: low to high
Pd
-31
---
---
dBm Transition: high to low
Signal detect -- Hysteresis
1.0
---
dB
Wavelength of Operation
1480
1500
nm
5
Electrical
Differential Output Voltage
V_OH – V_OL
0.6
2.0
V
Output LOS Voltage -- Low
V_OL
0
Output LOS Voltage – High
V_OH
2.0
Signal Detect Assert Time
AS_MAX
0.5
V
Vcc+0.3
V
100
µs
Signal Detect Deassert Time
ANS_MAX
300
µs
Notes: 4. Minimum sensitivity and saturation levels at BER 1E-10 for a 2²³-1 PRBS.
5. At least 30 dB optical isolation for the wavelength 1260 to 1360 nm.
6. Open collector compatible, 4.7K to 10K ohm pull-up to Vcc (Host Supply Voltage).
6
6
OFF to ON
ON to OFF
RECOMMENDED CIRCUIT SCHEMATIC
VeeT
Tx_DISABLE
Tx_FAULT
(1,17,20)
3
2
4.7K to 10KΩ
LD
Driver
100Ω
TD + 18
TD - 19
VccT ¹⁶
10nF
VccR ¹⁵
10nF
Z=50Ω
Z=50Ω
1μH
10μF
10nF
1μH
10μF
TD +
TD -
Vcc 3.3V
10μF
SerDes
IC
Tx_DISABLE
Tx_FAULT
Protocol
IC
RD - 12
POST
Amp
RD + 13
4.7K to 10KΩ
LOS 8
Z=50Ω
100Ω
RD -
Z=50Ω
RD +
depending on SERDES
EEPROM
VeeR ^(9,10,11,14)
MOD_DEF(0) ⁶
MOD_DEF(1) ⁵
MOD_DEF(2) ⁴
SFP module
4.7K to 10KΩ
4.7K to 10KΩ
4.7K to 10KΩ
Vcc 3.3V
LOSS OF SINGAL
MODULE DETECT
SCL
SDA
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OPTOWAY TECHNOLOGY INC. No.38, Kuang Fu S. Road, Hu Kou, Hsin Chu Industrial Park, Hsin Chu, Taiwan 303
Tel: [phone]
Fax: [phone]
E-mail: [e-mail] http: // www.optoway.com.tw 1/1/2008 V3.0