U3750BM - One Chip Telephone Circuit

Datasheet Summary

Description

TELEFUNKEN microelectronic’s one chip telephone circuit, U 3750 BM, is BICMOS integrated circuit that performs all the speech and line interface functions required in an electronic telephone set, the tone ringer, the pulse and DTMF dialling with redial, a keyboard interface with the possibility to i

Features

D Adjustable dc slope characteristic D Adjustable automatic line length receiving and sending gain control (not used in DTMF) with the possibility of fixed gain (PABX) D Adjustable dynamic impedance D Stabilized power supply for peripherals D Confidence level during pulse and DTMF dialling D Receiving amplifier for dynamic or piezo-electric ear pieces D High-impedance microphone inputs (80 kW in symmetrical and 40 kW in asymmetrical) suitable for dynamic, magnetic, piezo-electric or electret mic.

TEMIC Semiconductors

📥 Download Datasheet

Datasheet Details

Part number	U3750BM
Manufacturer	TEMIC Semiconductors
File Size	231.46 KB
Description	One Chip Telephone Circuit
Datasheet	U3750BM Datasheet
Additional preview pages of the U3750BM datasheet.

📁 Similar Datasheet

U3741BM - UHF ASK RECEIVER IC (ATMEL Corporation)
U3742BM - UHF ASK/FSK RECEIVER (ATMEL Corporation)
U3745BM - UHF ASK RECEIVER IC (ATMEL Corporation)
U3761MB-T - Universal Telephone IC (ATMEL Corporation)
U3770M - CT2 I/Q Modulator and Clock Circuitry (ATMEL Corporation)

Other Datasheets by TEMIC Semiconductors

U3741BM - UHF ASK/FSK Receiver
U3761MB - Low Voltage Standard Telephone Circuit
U3761MB-AFN - Low Voltage Standard Telephone Circuit
U3761MB-AFNG3 - Low Voltage Standard Telephone Circuit
U3761MB-ASD - Low Voltage Standard Telephone Circuit
U3770M - CT2 I/Q Modulator and Clock Circuitry

Full PDF Text Transcription

Click to expand full text

www.DataSheet4U.com TELEFUNKEN Semiconductors U3750BM One Chip Telephone Circuit Description TELEFUNKEN microelectronic’s one chip telephone circuit, U 3750 BM, is BICMOS integrated circuit that performs all the speech and line interface functions required in an electronic telephone set, the tone ringer, the pulse and DTMF dialling with redial, a keyboard interface with the possibility to interface with an external microcontroller using the internal serial bus, and a power supply for peripherals.

Published: Dec 22, 2006 |