Multiplexing arrangement for a plurality of voltage...

Details Multiplexing arrangement for a plurality of voltage... Multiplexing arrangement for a plurality of voltage...

H - Electricity

03

J

365/13

H03J 5/24 (2006.01) H03J 5/02 (2006.01)

Patent

CA 1167577

RCA 74,739 Abstract of the Disclosure A multiplexing arrangement enables a plurality of control voltages for controlling respective ones of a plurality of varactor controlled tunable filters, employed, e.g., prior to the tuner of a television receiver to reject undesired signals t to be generated by a single digital to analog (D/A) converter. A controller, which may, e.g., comprise a microcomputer, sequentially applies digital control words to the D/A converter and substantially synchronously causes the resultant control voltages generated by the D/A converter to be applied, through respective switch to the tunable filters. The control voltages are applied to capacitors connected to d.c. control lines for the tunable filters. The high impedance of the varactor diodes included in the filters enables the capacitors to store respective control voltages for relatively long intervals before the control voltages need to be refreshed. This enables a large number of tunable filters to be controlled by a single D/A converter.

380419

Affiliated with

Also associated with

Rating

Multiplexing arrangement for a plurality of voltage... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multiplexing arrangement for a plurality of voltage..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiplexing arrangement for a plurality of voltage... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1320971