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Audio Processor IC

Fri, 09/27/2002 - 6:44am
The CMX882 operates from a single 2.7 volt rail. Under the control of the host μC, all audio requirements are catered for: Voiceband and sub-audio filtering, Pre/de-emphasis, compression and expansion, audio routing and global level setting with single or two-point modulation available in the transmit path. Enhanced CTCSS and DCS encoding and decoding is incorporated. It also facilitates GPS location data transport via a 1200/2400 b/s FFSK/MSK packet data modem incorporating interleaving, FEC, CRC and data scrambling functions. XTCSS Signalling provides more (99) and better squelch privacy codes with the added advantage of 'silent operation'; no annoying interference from other users
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