Title :
An Adaptive Line Equalizer LSI for ISDN Subscriber Loops
Author :
Inami, Daijiro ; Kuraishi, Yoshiaki ; Fushimi, Shigeo ; Takahashi, Yutaka ; Nukada, Yasuaki ; Kameyama, Shigeharu ; Shiratori, Akihiro
Author_Institution :
NEC Corporation / NEC Engineering LTD. JAPAN
Abstract :
An adaptive line equalizer LSI which realizes 320kbit/s burst-mode transmission is described. The automatic gain control (AGC) circuit comprised of switched capacitor filters (SCFs) can adaptively equalize cable loss characteristics up to 53dB insertion loss at Nyquist frequency (160kHz). A chip area 40mm2 and power consumption 80mW are achieved in 3¿mCMOS technology.
Keywords :
Adaptive equalizers; Adaptive filters; Frequency; Gain control; ISDN; Insertion loss; Large scale integration; Subscriber loops; Switched capacitor circuits; Switching circuits;
Conference_Titel :
Solid-state Circuits Conference, 1987. ESSCIRC '87. 13th European
Conference_Location :
Taunus-Tagungs-Zentrum, F.R. Germany