LT1264 and charge pump IC as supply
LT1264 and charge pump IC as supply
(OP)
I was using a transformer based -5 supply to the LT1264 Bandpass filter without a problem until I tried using Microchip TC962 negative charge pump for the same negative supply instead of the transformer. The TC962 has 80ma output LT1264=23ma, max. Any conceptual blunders in trying this approach?





RE: LT1264 and charge pump IC as supply
Any problem ?
Plesae read FAQ240-1032
My WEB: <http://geocities.com/nbucska/>
RE: LT1264 and charge pump IC as supply
If you are having problems, you may want to use a device to generate your -5V that has low noise and ripple on the output. Some voltage inverters are designed for low noise for use in VCO or RF circuits, and some are followed by a low noise LDO.
RE: LT1264 and charge pump IC as supply
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: LT1264 and charge pump IC as supply