Title :
Digitally programmable continuous-time lowpass filter for tape drives
Author :
De Veirman, Geert A. ; Contreras, Richard A.
Author_Institution :
Silicon Syst. Inc., Tustin, CA, USA
Abstract :
A monolithic seventh-order continuous-time bipolar filter for use in magnetic tape drives is presented. The filter provides a 0.05° equiripple linear phase response with matched group delay at both normal and differentiated lowpass outputs. The cutoff frequency and high-frequency equalization are digitally programmable through a serial interface. The circuit operates from a 5-V supply and requires only a single external resistor
Keywords :
bipolar integrated circuits; low-pass filters; magnetic tape equipment; magnetic tape storage; mixed analogue-digital integrated circuits; cutoff frequency; differentiated lowpass outputs; digitally programmable filter; equiripple linear phase response; high-frequency equalization; magnetic tape drives; matched group delay; serial interface; seventh-order continuous-time bipolar filter; single external resistor; Application specific integrated circuits; Clocks; Cutoff frequency; Delay; Digital filters; Logic; Magnetic separation; Shift registers; Transconductance; Tunable circuits and devices;
Conference_Titel :
ASIC Conference and Exhibit, 1992., Proceedings of Fifth Annual IEEE International
Conference_Location :
Rochester, NY
Print_ISBN :
0-7803-0768-2
DOI :
10.1109/ASIC.1992.270197
