Alpha Bridge SFP ASFP-1G-EX 3149B

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 ASFP-1G-EX 3149B

Parameter   symbol min Max. Units notes
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 ASFP-1G-EX 3149B

Parameter Symbol Min. Typ. Max. Units Notes
Operating Case Temperature T T C OP 0 70 70 ℃ OP6C-W40-B4-C
-40 85   ℃     OP6C-W40-B4-I
Supply Voltage VCC -40 3.3 3.465 V  
Supply current ITX + IRX 3.1 --- 300 mA  

Transmitter Electro-optical Characteristics ASFP-1G-EX 3149B

Parameter           Symbol Min. Typ. Max. Units Note
Optical Input Power-maximum                      PIN -1 --- --- dBm BER < 10-12
Optical Input Power-minimum                     PIN --- --- -23 dBm BER < 10-12
Operating Center Wavelength                       λC 1480 --- 1500 nm  
Optical Return Loss                                     ORL 14 --- --- dB λ=1480~1500nm
Optical isolation                                           ISO --- --- -40 dB λ=1260~1360nm
Loss of signal-Asserted                                 PA --- --- -23 dBm  
Loss of signal-Deasserted                             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              RX_LOSL 0 --- 0.5 V  
Receiver Loss of Signal Output                RX_LOSH 2.4 --- VCC V  

Note: Path penalty is intended as the power penalty of the interface between back-to-back and the maximum applied dispersion.

Receiver Electro-optical Characteristics ASFP-1G-EX 3149B

Parameter   Symbol Min type max Units Notes
Output Optical Power   Pout -3   +2 dBm Average  
9/125 μm fiber            
Extinction Ratio ER 9 --- --- dB  
Center Wavelength ℃ 1290 1310 1330 nm  
Spectral Width (-20dB) λC --- --- 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 --- 2.0 V  

Block Diagram of Transceiver

Transmitter and Receiver Optical Sub-Assembly Section

A 1310 nm InGaAsP laser and an InGaAs PIN photodiode integrate with an WDM filter to form a bi-directional single fiber optical subassembly (OSA). The laser of OSA is driven by a LD driver IC which converts differential input LVPECL logic signals into an analog laser driving current. And, the photodiode of OSA is connected to a circuit providing post-amplification quantization, and optical signal detection.

  TX_DISABLE

The TX_DISABLE signal is high (TTL logic “1”) to turn off the laser output.

  Receive Loss (RX_LOS)

 The RX_LOS is high (logic “1”) when there is no incoming light from the companion transceiver. This signal is normally used by the system for the diagnostic purpose. The signal is operated in TTL level.

Pin Description ASFP-1G-EX 3149B

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 ASFP-1G-EX 3149B

Model Number Part Number Reach TX/RX Input/Out Signal Detect Temperature LD Type
ASFP-1G-EX3149B OP6C-W40-B4-C 40 km 1310/1490 AC/AC TTL 0°C to 70 °C 1310 DFB
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