Philips Electronics
Low voltage versatile telephone transmission circuit with dialler interface
Philips Electronics
Voice switched speakerphone IC
Telefunken Licences GmbH
Quasi Parallel Sound Processing with Quadrature Intercarrier Demodulator
Philips Electronics
Speech and loudspeaker amplifie IC with auxiliary inputs/outputs and analog multiplexer
Unspecified
Tone Ringer IC (14-Pin Plastic Package TO-116)
Philips Electronics
Versatile telephone transmission circuit with dialler interface
Philips Electronics
Speech and listening-in IC
Unspecified
13 BIT SERIES PARALLEL CONVERTER
Contek Microelectronics
LOW VOLTAGE TELEPHONE TRANSMISSION CIRCUIT WITH DIALLER INTERFACE
Temic Semiconductors
Simple phase control circuit
Philips Electronics
Supply circuit with power-down for telephone set peripherals
Philips Electronics
Control circuit for switched-mode power supply
Philips Electronics
Hands-free IC
STMicroelectronics
VIDEO AND AUDIO SIGNALS SWITCHINGS FOR THE PERI-TELEVISION PLUG
Philips Electronics
Call progress monitor for line powered telephone sets
Unspecified
VERSATILE TELEPHONE TRANSMISSION CIRCUITS WITH DIALLER INTERFACE
Philips Electronics
Versatile speech/dialler/ringer with music-on-hold