Integrated PCM Filter CODEC,A-Law AT&T D3/D4,CCIT G711/G712

Integrated DTMF Transceiver with Intel Micro Interface

ISO 2-CMOS Integrated DTMF Transceiver Call Progress Mode

Integrated DTMF Receiver

Call Progress Tone Decoder and ABR Controller

Voice Switched Speakerphone Circuit

15 Memory Tone Pulse Switchable Dialer DC 12

RALCWI Vocoders, Near Toll Quality RALCWI Coding Algorithm, Multiple Bit Rate Modes, 4-Bit Viterbi Soft Decision Decoding, Integrated Audio CODEC

Audio and Signalling Processing, DTMF, DSC/ATIS and NOAA with Auxiliary Function for Use in Marine VHF Systems, C-BUS Serial Interface.

TELEPHONE TONE RINGER 29V,2.8MA

Voice Switched Speaker-Phone Circuit

Multi-Standard CMOS Telephone IC for Basic Telephones, Electronic Rx Volume Control, Microphone Amplifier with Symmetrical Input

Single Chip Zero IF Tuner Tuner For DSS and DVB Satellite Receivers With PLL Synthesizer