Citation
H. Huang et Ekf. Lee, Digital frequency and Q tuning technique for low-voltage active filters, ELECTR LETT, 35(8), 1999, pp. 635-636
Citations number
6
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
ELECTRONICS LETTERS
ISSN journal
00135194
→ ACNP
Volume
35
Issue
8
Year of publication
1999
Pages
635 - 636
Database
ISI
SICI code
0013-5194(19990415)35:8<635:DFAQTT>2.0.ZU;2-J
Abstract
A digital frequency and Q tuning technique is proposed for low-voltage (1V)
active RC biquad filters that uses programmable capacitor arrays (PCAs). T
he proposed technique does not require any peak detectors, which are diffic
ult to implement at low voltages. Instead, it uses a small number of analog
ue comparators, a digital comparator and binary counters to adjust the PCAs
.