Title :
High Saturation Level of the AGC Circuit Implementation
Author :
Leng Xue ; Yang Jin-hua ; Song Hong-fei
Author_Institution :
Sch. of Photoelectric Eng., Changchun Univ. of Sci. & Technol., Changchun, China
Abstract :
This article describes the external AGC circuit algorithm based on EPLD and the VHDL program, designs digital AGC circuit in the front of the microwave receiver RF to extend the dynamic range of the receiver. After A/D conversion, the RF signal detector voltage designs VLSI, and outputs TTL signal which control digital attenuator. Constitute a closed loop AGC, to adjust the gain of the RF signal into the required dynamic range.
Keywords :
VLSI; analogue-digital conversion; automatic gain control; closed loop systems; control engineering computing; electronic engineering computing; hardware description languages; integrated circuit design; microwave receivers; signal detection; A/D conversion; EPLD; RF signal detector voltage; TTL signal; VHDL program; VLSI design; automatic gain control circuit; closed loop AGC; digital AGC circuit; digital attenuator; external AGC circuit algorithm; high saturation level; microwave receiver; Attenuation; Attenuators; Educational institutions; Gain control; Receivers; Registers; Voltage control; AGC; Dynamic Range; High saturation level;
Conference_Titel :
Computer Science and Electronics Engineering (ICCSEE), 2012 International Conference on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4673-0689-8
DOI :
10.1109/ICCSEE.2012.239
