SPT-P2T13V3-40D SFP Dual TX 1310nm Video 3G SDI 40km Optical Module Product Guide
Product Overview
The SPT-P2T13V3-40D is a SFP dual-channel optical transmitter module designed to transmit data rates from 50Mbps to 2.97Gbps and is specifically designed for robust performance in the presence of SDI pathological patterns for SMPTE 259M, SMPTE 344M, SMPTE 292M, and SMPTE 424M serial rates. The module is fully compliant with SMPTE 297M-2006.
The transmitter is a dual channel optical transmitter module, one channel consists of two sections: a DFB laser transmitter and MCU control unit. All modules satisfy Class I laser safety requirements.
Absolute Maximum Ratings
| Parameter | Symbol | Min | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | Vcc | -0.5 | 4.5 | V |
| Storage Temperature | Ts | -40 | +85 | °C |
| Operating Humidity | - | 5 | 85 | % |
Recommended Operating Conditions
| Parameter | Symbol | Min | Typical | Max | Unit |
|---|---|---|---|---|---|
| Operating Case Temperature (Standard) | Tc | 0 | - | +70 | °C |
| Power Supply Voltage | Vcc | 3.13 | 3.3 | 3.47 | V |
| Power Supply Current | Icc | - | - | 500 | mA |
| Data Rate | - | - | - | 3 | Gbps |
Optical and Electrical Characteristics
| Parameter | Symbol | Min | Typical | Max | Unit | Notes |
|---|---|---|---|---|---|---|
| Transmitter | ||||||
| Centre Wavelength | λc | 1260 | 1310 | 1360 | nm | - |
| Spectral Width (-20dB) | σ | - | - | 1 | nm | - |
| Side Mode Suppression Ratio | SMSR | 30 | - | - | dB | - |
| Average Output Power | Pout | -2 | 0 | +2 | dBm | 1 |
| Extinction Ratio | ER | 5 | - | - | dB | - |
| Rise/Fall Time (20%~80%) | tr/tf | SD-SD: 1500 HD-SD: 270 3G-SD: 135 | - | - | ps | 2 |
| Total Output Jitter | - | PRBS and SD-SD: 70 HD-SD: 50 3G-SD: 70 | - | PRBS and SD-SD: 200 HD-SD: 135 3G-SD: 100 | ps | - |
| Pathological Output Jitter | - | SD-SD: 200 HD-SD: 115 3G-SD: 120 | - | - | ps | - |
| Data Input Swing Differential | VIN | 400 | - | 1800 | mV | 3 |
| Input Differential Impedance | ZIN | 90 | 100 | 110 | Ω | - |
| TX Disable | - | 2.0 | - | Vcc | V | - |
| Disable Enable | - | 0 | - | 0.8 | V | - |
| TX Fault | - | 2.0 | - | Vcc | V | - |
| TX Fault Normal | - | 0 | - | 0.8 | V | - |
Notes:
1. The optical power is launched into SMF.
2. Rise and fall times 20% to 80% are measured following a fourth-order Bessel-Thompson filter with a bandwidth of 0.75xclock frequency corresponding to the serial data rate.
3. PECL input internally AC-coupled and terminated.
4. Internally AC-coupled.
Timing and Electrical
| Parameter | Symbol | Min | Typical | Max | Unit |
|---|---|---|---|---|---|
| Tx Disable Negate Time | t_on | 1 | - | - | ms |
| Tx Disable Assert Time | t_off | - | - | 10 | us |
| Time To Initialize including Reset of Tx Fault | t_init | - | - | 300 | ms |
| Tx Fault Assert Time | t_fault | - | - | 100 | us |
| Tx Disable To Reset | t_reset | - | - | 10 | us |
| Serial ID Clock Rate | f_serial_clock | - | 280 | - | KHz |
| MOD_DEF (0:2)-High | VH | 2 | - | Vcc | V |
| MOD_DEF (0:2)-Low | VL | - | - | 0.8 | V |
Diagnostics Specification
| Parameter | Range | Unit | Accuracy | Calibration |
|---|---|---|---|---|
| Temperature | 0 to +70 | °C | ±3°C | Internal / External |
| Voltage | 3.0 to 3.6 | V | ±3% | Internal / External |
| Bias Current | 0 to 100 | mA | ±10% | Internal / External |
| TX Power | -2 to 2 | dBm | ±3dB | Internal / External |
I2C Bus Interface
The I2C bus interface uses the 2-wire serial CMOS E2PROM protocol. The serial interface meets the following specifications:
- Support a maximum clock rate of 280KHz
- Input/Output levels comply with LVCMOS/LVTTL or compatible logics
- Low: 0-0.8V
- High: 2.0-3.3V
- Undefined: 0.8-2.0V
Pin Definitions
Pin Descriptions
| Pin | Signal Name | Description | Plug Seq. | Notes |
|---|---|---|---|---|
| 1 | VEE_TX1 | Transmitter 1 Ground | 1 | - |
| 2 | TX1_FAULT | Transmitter 1 Fault Indication | 3 | Note 1 |
| 3 | NC | Not Connected | 3 | - |
| 4 | VEE_TX1 | Transmitter 1 Ground | 3 | - |
| 5 | I2C CLK | SCL Serial Clock Signal | 3 | Note 3 |
| 6 | I2C DATA | SDA Serial Data Signal | 3 | Note 3 |
| 7 | VEE_TX2 | Transmitter 2 Ground | 3 | - |
| 8 | TD2+ | Transmit 2 Data In | 3 | Note 4 |
| 9 | TD2- | Inv. Transmit 2 Data In | 1 | Note 4 |
| 10 | TX2_DIS | Transmitter 2 Disable | 1 | Note 2 |
| 11 | VEE_TX2 | Transmitter 2 Ground | 1 | - |
| 12 | TX2_FAULT | Transmitter 2 Fault Indication | 3 | Note 1 |
| 13 | NC | Not Connected | 3 | - |
| 14 | VEE_TX2 | Transmitter 2 Ground | 1 | - |
| 15 | VCC_TX2 | Transmitter Power 2 Supply | 2 | - |
| 16 | VCC_TX1 | Transmitter Power 1 Supply | 2 | - |
| 17 | VEE_TX1 | Transmitter 1 Ground | 1 | - |
| 18 | TD1+ | Transmit 1 Data In | 3 | Note 4 |
| 19 | TD1- | Inv. Transmit 1 Data In | 3 | Note 4 |
| 20 | TX1_DIS | Transmitter 1 Disable | 1 | Note 2 |
Notes:
Plug Seq.: Pin engagement sequence during hot plugging.
1) TX Fault is an open collector output which should be pulled up with a 4.7k~10kΩ resistor on the host board to a voltage between 2.0V and Vcc+0.3V. Logic 0 indicates normal operation; Logic 1 indicates a laser fault of some kind. In the low state the output will be pulled to less than 0.8V.
2) TX Disable is an input that is used to shut down the transmitter optical output. It is pulled up within the module with a 4.7k~10kΩ resistor. Its states are:
- Low (0 to 0.8V): Transmitter on
- (>0.8V <2.0V): Undefined
- High (2.0 to 3.465V): Transmitter Disabled
- Open: Transmitter Disabled
3) They should be pulled up with a 4.7k~10kΩ resistor on the host board. The pull-up voltage shall be VCC_TX1 or VCC_TX2.
- I2C CLK is the clock line of two wire serial interface for serial ID
- I2C DATA is the data line of two wire serial interface for serial ID
4) TD1/2-/+ : These are the differential transmitter inputs. They are internally AC-coupled differential lines with 100Ω differential termination inside the module.
Ordering Information
| Part Number | Product Description |
|---|---|
| SPT-P2T13V3-40D | Transceiver SFP Dual TX 1310nm Video 3G SDI 40km LC Interface with DDM, Commercial Temperature |
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