Overview
The SN65LVDT14PWG4 is a multi-channel Low-Voltage Differential Signaling (LVDS) transceiver produced by Texas Instruments. This device integrates one LVDS line driver and four LVDS line receivers into a single 20-pin TSSOP package, designed to simplify PCB layout with its flow-through pinout. It operates from a single 3.3-V power supply, which can range from 3 V to 3.6 V, and supports signaling rates of at least 250 Mbps. The SN65LVDT14 is particularly useful for extending asymmetric, bidirectional interfaces such as SPI over long distances, typically located at the SPI slave end.
Key Specifications
| Parameter | Min | Typical | Max | Unit |
|---|---|---|---|---|
| Power Supply Voltage | 3 V | 3.3 V | 3.6 V | V |
| Signaling Rate | - | - | 250 Mbps | Mbps |
| Differential Output Voltage Magnitude | 247 mV | 340 mV | 454 mV | mV |
| High-Level Output Voltage | - | - | 2.4 V | V |
| Low-Level Output Voltage | - | - | 0.4 V | V |
| Operating Free-Air Temperature | -40°C | - | 85°C | °C |
| Package Type | - | - | 20-pin TSSOP | - |
| Package Size | - | - | 6.50 mm × 4.40 mm | mm |
Key Features
- Integrated 110-Ω nominal receiver line termination resistor
- Single 3.3-V power supply (3-V to 3.6-V range)
- Supports signaling rates of at least 250 Mbps
- Flow-through pinout simplifies PCB layout
- LVTTL-compatible logic I/Os
- ESD protection on bus pins exceeds 16 kV
- Meets or exceeds the requirements of ANSI/TIA/EIA-644A standard for LVDS
- High noise immunity and low electromagnetic interference (EMI)
Applications
- Serial Peripheral Interface (SPI) over LVDS for long interconnects between master and slave
- Board-to-board communication
- Test and measurement
- Motor drives
- LED video walls
- Wireless infrastructure
- Telecom infrastructure
- Rack servers
Q & A
- What is the primary function of the SN65LVDT14?
The SN65LVDT14 is a multi-channel LVDS transceiver that combines one LVDS line driver with four terminated LVDS line receivers, designed to extend asymmetric, bidirectional interfaces such as SPI over long distances.
- What is the operating voltage range of the SN65LVDT14?
The SN65LVDT14 operates from a single power supply voltage ranging from 3 V to 3.6 V, with a nominal voltage of 3.3 V.
- What is the maximum signaling rate supported by the SN65LVDT14?
The SN65LVDT14 supports signaling rates of at least 250 Mbps.
- What type of package does the SN65LVDT14 come in?
The SN65LVDT14 comes in a 20-pin TSSOP package.
- What are the key features of the SN65LVDT14?
The key features include integrated 110-Ω receiver line termination, single 3.3-V power supply, flow-through pinout, LVTTL-compatible logic I/Os, and ESD protection exceeding 16 kV.
- What applications is the SN65LVDT14 suitable for?
The SN65LVDT14 is suitable for SPI over LVDS, board-to-board communication, test and measurement, motor drives, LED video walls, wireless infrastructure, telecom infrastructure, and rack servers.
- Does the SN65LVDT14 meet any specific industry standards?
Yes, the SN65LVDT14 meets or exceeds the requirements of the ANSI/TIA/EIA-644A standard for LVDS.
- What is the operating temperature range of the SN65LVDT14?
The operating free-air temperature range is from -40°C to 85°C.
- How does the SN65LVDT14 improve signal integrity?
The SN65LVDT14 improves signal integrity through high noise immunity and low electromagnetic interference (EMI) due to its LVDS technology.
- What is the purpose of the flow-through pinout in the SN65LVDT14?
The flow-through pinout simplifies PCB layout by aligning the input and output pins in a linear fashion.
