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U4074B Datasheet Tone Ringer Interface

Manufacturer: TEMIC Semiconductors (now Microchip)

Overview: U4074B Tone Ringer Interface.

General Description

The U4074B is a monolithic integrated circuit that contains all integral ponents of a ringing circuit for telephone sets used in conjunction with a microputer.

The bination of a microputer and the U4074B permits flexible programming of the ringing sequence ( melody), tone and volume control.

Ringing frequency detection takes place in the microputer.

Key Features

  • D Suitable for specifications FTZ 1TR2 and ETR 2 D Rectifier bridge D Z-diode D Amplitude detection D Supply voltage for microcomputer 3.5 @ D DC operation possible D Bridge push-pull output stage 22 mF V B 2(3) TH 130 kW 3(4) VDD 10 (12) 2f 4(5) 47mF D CMOS-compatible microcomputer interface D 2-bit log. volume adjustment D High-voltage bipolar technology, 30 V v 1.5 mA Benefits D mC controlled melody and volume D Low number of external components On/Off a 0.8mF (1)1 a 2.2 kW Ringing signa.

More Datasheets from TEMIC Semiconductors (now Microchip)

Part Number Description
U4070B-FP Tone Ringer Interface
U4076B Three-Tone Ringer for Telephone Sets
U4076B-FL Three-Tone Ringer for Telephone Sets
U4030B Telephone Speech Circuit
U4050B Speech Circuit
U4055B Low-Voltage Electronic Speech Circuit
U4055B1 Low-Voltage Electronic Speech Circuit
U4080B Voice-Switched Circuit for Handsfree Operation
U4083 Low-Power Audio Amplifier for Telephone Applications
U4083B Low-Power Audio Amplifier for Telephone Applications

U4074B Distributor