Philips Electronics

Low voltage versatile telephone transmission circuit with dialler interface

Philips Electronics

Voice switched speakerphone IC

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

Philips Electronics

Supply circuit with power-down for telephone set peripherals

Temic Semiconductors

Simple phase control circuit

Philips Electronics

Control circuit for switched-mode power supply

Philips Electronics

Hands-free IC

Philips Electronics

Call progress monitor for line powered telephone sets

STMicroelectronics

VIDEO AND AUDIO SIGNALS SWITCHINGS FOR THE PERI-TELEVISION PLUG