High-precision, programmable 1-10 MHz bandwidth, 0-20 dB gain communication channel for digital video applications

Author

Siniscalchi, Patrick ; Wyszynski, Adam ; Choi, Davy

Author_Institution

Texas Instrum. Inc., Dallas, TX, USA

fYear

1996

fDate

5-8 May 1996

Firstpage

85

Lastpage

88

Abstract

The analog signal processing portion of a digital video demodulation scheme is built in a 5 V BiCMOS process. The channel is both cutoff frequency and gain programmable from 1→10 MHz and 0→20 dB, respectively. The filter is realized as a 4^th order Gm/C Butterworth lowpass and includes in-package trim for accurate control. A programmable gain amplifier is placed in front of the filter for better S/N performance (>40 dB) and lower intermodulation distortion (>-52 dB). The PSRR of this single-ended channel is better than 40 dB. The channel dissipates 250 mW

Keywords

BiCMOS analogue integrated circuits; analogue processing circuits; circuit tuning; demodulation; gain control; video amplifiers; video signal processing; 0 to 20 dB; 1 to 10 MHz; 250 mW; 40 dB; 5 V; BiCMOS process; Butterworth lowpass filter; IMD reduction; analog signal processing; cutoff frequency programmable type; digital video demodulation scheme; high-precision communication channel; in-package trim; intermodulation distortion; programmable bandwidth; programmable gain; programmable gain amplifier; Bandwidth; BiCMOS integrated circuits; Communication channels; Cutoff frequency; Demodulation; Differential amplifiers; Electronics packaging; Filters; Performance gain; Transconductance;

fLanguage

English

Publisher

ieee

Conference_Titel

Custom Integrated Circuits Conference, 1996., Proceedings of the IEEE 1996

Conference_Location

San Diego, CA

Print_ISBN

0-7803-3117-6

Type

conf

DOI

10.1109/CICC.1996.510517

Filename

510517