Alpha Bridge ASFP-1G-LX4931B

Features

  • SFP Multi-Source Agreement compliant
  • Compliant with 3z Gigabit Ethernet Standard
  • Compliant with Fiber Channel 100-SM-LC-L standard
  • Industry standard small form pluggable (SFP) package
  • Simplex LC connector
  • Differential LVPECL inputs and outputs
  • Single power supply 3V
  • TTL signal detect indicator
  • Hot Pluggable
  • Class 1 laser product complies with EN 60825-1
  • RoHS Compliant

Absolute Maximum Ratings

Parameter Symbol Min. Max. Units Note
Storage Temperature TS -40 85 °C  
Supply Voltage Vcc -0.5 4.0 V  
Input Voltage VIN -0.5 Vcc V  
Output Current Io --- 50 mA  
Operating Current IOP --- 400 mA  

Recommended Operating Conditions

Parameter Symbol Min. Max. Units Typical
Case Operating Temperature Tc 0 70 °C OP6C-W10-B9-C
-40 85 °C OP6C-W10-B9-I
Supply Voltage Vcc 3.1 3.5 V  
Supply Current ITX+IRX -- 300 mA  

Transmitter Electro-optical Characteristics

Parameter Symbol Min. Typ. Max. Units Note
Output Optical Power 9/125 μm fiber Pout -9 --- -3 dBm Average
Extinction Ratio ER 9 --- --- dB  
Center Wavelength lC 1480 1490 1500 nm  
Spectral Width (-20dB) l --- --- 1 nm  
Side Mode Suppression Ratio SMSR 30     dB  
Rise/Fall Time (20-80%) Tr, f --- --- 260 ps  
Relative Intensity Noise RIN --- --- -120 dB/Hz  
Total Jitter TJ --- --- 227 ps  
Output Eye Compliant with IEEE802.3z
Max Pout TX-DISABLE Asserted POFF --- --- -45 dBm  
Differential Input Voltage VDIFF 0.4 --- 2 V  

Receiver Electro-optical Characteristics

Parameter Symbol Min. Typ. Max. Units Note
Optical Input Power-maximum PIN -1 --- --- dBm BER < 10-12
Optical Input Power-minimum PIN --- --- -21 dBm BER < 10-12
Operating Center Wavelength λC 1260 --- 1360 nm  
Optical Return Loss ORL 14 --- --- dB λ=1260~1360nm
Optical isolation ISO --- --- -40 dB λ=1480~1500nm
Loss of signal-Asserted PA --- --- -21 dBm  
Loss of signal-De asserted PD -35 --- --- dBm  
Differential Output Voltage VDIFF 0.5 --- 1.2 V  
Data Output Rise, Fall Time T r, f --- --- 0.35 ns  
Receiver Loss of Signal Output Voltage- Low RX_LOSL 0 --- 0.5 V  
Receiver Loss of Signal Output Voltage - High RX_LOSH 2.4 --- VCC V  

Pin Descriptions

Pin Signal Name Description
1 TGND Transmitter Ground
2 TX_FAULT Transmit Fault
3 TX_DISABLE Transmit Disable
4 MOD_DEF (2) SDA Serial Data Signal
5 MOD_DEF (1) SCL Serial Clock Signal
6 MOD_DEF (0) TTL Low
7 RATE SELECT Open Circuit
8 RX_LOS Receiver Loss of Signal, TTL High, Open collector
9 RGND Receiver Ground
10 RGND Receiver Ground
11 RGND Receiver Ground
12 RX- Receive Data Bar, Differential PECL, ac coupled
13 RX+ Receive Data, Differential PECL, ac coupled
14 RGND Receiver Ground
15 VCCR Receiver Power Supply
16 VCCT Transmitter Power Supply
17 TGND Transmitter Ground
18 TX+ Transmit Data, Differential PCEL, ac coupled
19 TX- Transmit Data Bar, Differential PCEL, ac coupled
20 TGND Transmitter Ground

Ordering Information

Model Number Part Number Reach TX/RX Input/Out Signal Detect Temperature LD Type
ASFP-1G-LX4931B OP6C-W10-B9-C 10 km 1490/1310 AC/AC TTL 0°C to 70 °C 1490 DFB
ASFP-1G-LX4931B-I OP6C-W10-B9-I 10 km 1490/1310 AC/AC TTL -40°C to 85 °C 1490 DFB
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