Low-noise power supply reference design maximizing performance in 12.8-GSPS data acquisition systems
Description
This reference design demonstrates an efficient: low noise 5-rail power-supply design for very high-speed DAQ systems capable of > 12.8 GSPS. The power supply DC/DC converters are frequency synchronized and phase-shifted in order to minimize input current ripple and control frequency content. Furthermore: any potential radiated electromagnetic interference (EMI) is minimized by using high performance HotRodTM packaging technology.
Features
- Efficient: low-noise: point-of-load DAQ power supply for very high-speed AFEPhase-shifting DC/DC converter clocks to reduce inrush current and power-supply noiseExternal frequency sync to manage DC/DC converters spursConfigure output with ability to bypass each LDO and use just the DC/DC converter and filterUsed with TIDA-01022 and TIDA-01028 to show the impact on a 12.8 GSPS AFE with 9 GHz of analog BW
Applications
- Oscilloscopes & digitizers
- Digital multimeter (DMM)
- Software defined radio
- Aircraft cockpit display
- Interconnect/distribution box
- Full authority digital engine control (FADEC)
- Data acquisition (DAQ)
- Electronic warfare
- Global positioning system receiver
- Outdoor backhaul unit
- Radar
- Indoor backhaul
- Circuit breaker (ACB
- MCCB
- VCB)
- Wireless communications test
Product Categories
- Power management