Overview
The SN65LVDS31DR is a high-speed differential line driver produced by Texas Instruments. This device implements the electrical characteristics of low-voltage differential signaling (LVDS), which reduces power consumption, increases switching speeds, and allows operation with a 3.3-V supply rail. The SN65LVDS31DR is part of a family of devices that include the SN55LVDS31, SN65LVDS3487, and SN65LVDS9638, all designed for high-speed data transmission over controlled impedance media.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOIC (D) | - |
| Pins | 16 | - |
| Operating Temperature Range | -40°C to 85°C | °C |
| Data Rate | 400 Mbps | Mbps |
| Differential Output Voltage Magnitude | 247 mV (min), 340 mV (typ), 454 mV (max) | mV |
| Propagation Delay Time | 1.7 ns (typ) | ns |
| Output Voltage Rise and Fall Times | 500 ps (typ) | ps |
| Supply Voltage | 3 V to 3.6 V | V |
| Power Dissipation per Driver | 25 mW (typ) at 200 MHz | mW |
| ESD Protection | Exceeds 8 kV | kV |
| Input Logic Levels | Low-Voltage TTL (LVTTL) | - |
Key Features
- Meets or exceeds the requirements of ANSI TIA/EIA-644 Standard
- Low-Voltage Differential Signaling with typical output voltage of 350 mV and 100-Ω load
- Typical output voltage rise and fall times of 500 ps (400 Mbps)
- Typical propagation delay times of 1.7 ns
- Operates from a single 3.3-V supply
- Power dissipation of 25 mW typical per driver at 200 MHz
- Driver at high-impedance when disabled or with VCC = 0
- Bus-terminal ESD protection exceeds 8 kV
- Low-Voltage TTL (LVTTL) logic input levels
- Pin compatible with AM26LS31, MC3487, and μA9638
- Cold sparing for space and high-reliability applications requiring redundancy
Applications
- Wireless Infrastructure
- Telecom Infrastructure
- Printers
- Point-to-point and multidrop data transmission over controlled impedance media such as printed-circuit board traces, backplanes, or cables
Q & A
- What is the primary function of the SN65LVDS31DR?
The SN65LVDS31DR is a high-speed differential line driver that implements low-voltage differential signaling (LVDS) for high-speed data transmission.
- What is the data rate of the SN65LVDS31DR?
The data rate of the SN65LVDS31DR is 400 Mbps.
- What is the operating temperature range of the SN65LVDS31DR?
The operating temperature range is from -40°C to 85°C.
- What is the typical differential output voltage magnitude of the SN65LVDS31DR?
The typical differential output voltage magnitude is 340 mV into a 100-Ω load.
- What is the propagation delay time of the SN65LVDS31DR?
The typical propagation delay time is 1.7 ns.
- What type of input logic levels does the SN65LVDS31DR support?
The SN65LVDS31DR supports Low-Voltage TTL (LVTTL) logic input levels.
- Is the SN65LVDS31DR ESD protected?
Yes, the SN65LVDS31DR has bus-terminal ESD protection that exceeds 8 kV.
- What is the power dissipation of the SN65LVDS31DR per driver at 200 MHz?
The typical power dissipation per driver at 200 MHz is 25 mW.
- Is the SN65LVDS31DR pin compatible with other devices?
Yes, it is pin compatible with AM26LS31, MC3487, and μA9638.
- What are some common applications of the SN65LVDS31DR?
Common applications include wireless infrastructure, telecom infrastructure, and printers.
