Transmitting SPI Signals Over LVDS Interface Reference Design
Description
This reference design demonstrates how to resolve and optimize signal integrity challenges typically found when sending SPI signals over longer distance on the same PCB or off PCB to another board in a noisy environment by transmitting SPI signals over an LVDS interface. The concept offers high-noise immunity: reduced EMI emission and wider common-mode input tolerance.
Features
- Noise immunity and range extension for SPI bus using an LVDS interfaceAt least three-meter communication range using SPI over LVDS versus 0.5-meter range using standard SPITechniques to reduce propagation delay and improve SPI communication speed or range by routing SCLK back to SPI master10 times lower power consumption compared to other differential signaling (RS-422/RS-485) options–4-V to +5-V common-mode input voltage range offers high-ground bounce immunity
Applications
- Oscilloscopes & digitizers
- LED signage
- Digital multimeter (DMM)
- Spectrometer
- Flight control unit
- Lab & field Instrumentation
- Automotive test
- Data acquisition (DAQ)
- Seeker front end
- Global positioning system receiver
- Radar
- Signal generator
- Source measurement unit (SMU)
- Parametric measurement unit (PMU)
- Battery cell formation & test equipment
- Consumer wireless module
- AC analog input module
- Wired communication modules
- Substation automation
- Broadcast reference monitor
- Ultrasound scanner
Product Categories
- Interface