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 |
