Field programmable gate array (FPGA) based high-speed analog-digital converter (ADC) synchronous acquisition system
The invention relates to a field programmable gate array (FPGA) based high-speed analog-digital converter (ADC) synchronous acquisition system, comprising an FPGA based signal processing platform and a high-speed ADC synchronous acquisition daughter board. A clock signal for ADC acquisition, a contr...
Saved in:
Main Author | |
---|---|
Format | Patent |
Language | English |
Published |
14.10.2015
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | The invention relates to a field programmable gate array (FPGA) based high-speed analog-digital converter (ADC) synchronous acquisition system, comprising an FPGA based signal processing platform and a high-speed ADC synchronous acquisition daughter board. A clock signal for ADC acquisition, a control signal and date collected by the ADC on the high-speed ADC synchronous acquisition daughter board are transmitted to the FPGA based signal processing platform, and the FPGA based signal processing platform performs subsequent signal processing; the high-speed ADC synchronous acquisition daughter board comprises an ultralow jitter synchronous clock generation circuit, a power supply module, and a plurality of high-speed ADC acquisition circuits; and the front end of each high-speed ADC acquisition circuit is connected with a broadband signal conditioning circuit. Synchronous sampling is performed on the ADC between different channels through a multichannel ADC synchronization technology; the ultralow jitter synchronous clock generation circuit generates multichannel low jitter clocks meeting high-speed ADC signal to noise ratio and synchronism requirements; due to adoption of the two-stage alternating current coupling broadband signal conditioning circuit, the high-speed ADC acquisition circuit can collect middle frequency signals with input frequency between 10kHz and 700MHz; and the power supply module adopts a low noise power supply design. |
---|---|
Bibliography: | Application Number: CN20151263659 |