- Components/
- In Stock/
- ATMEL Corporation/
U4089B-P

U4089B-P | |
---|---|
Manufacturer Part Number | U4089B-P |
Description | Monolithic Integrated Feature Phone Circuit |
Manufacturer | ATMEL Corporation |
U4089B-P datasheet |
|
PrevNext
Features
•
Adjustable DC Characteristic
•
Transmit and Receive Gain Adjustable
•
Symmetrical Input of Microphone Amplifier
•
Anti-clipping in Transmit Direction
•
Automatic Line-loss Compensation
•
Built-in Ear Protection
•
DTMF and MUTE Input
•
Adjustable Sidetone Suppression Independent of Sending and Receiving Amplification
•
Integrated Amplifier for Open-listening Operation
•
Anti-clipping for Loudspeaker Amplifier
•
Improved Acoustical Feedback Suppression
•
Selectable Line Impedance
•
Voice Switch
•
Supply Voltages for All Functional Blocks of a Subscriber Set
•
Operation Possible from 10-mA Line Current
•
Filters Against EMI on Critical I/O
Benefits
•
Complete System Integration of Analog Signal Processing on One Chip
•
Very Few External Components
•
Less Components for EMI protection
Applications
•
Feature Phones
•
Answering Machines
•
Fax Machines
•
Speaker Phones
1. Description
The telephone circuit U4089B-P is a linear integrated circuit for use in feature phones,
answering machines and fax machines. It contains the speech circuit, sidetone
equivalent and ear protection rectifiers. The circuit is line-powered and contains all
components necessary for the amplification of signals and adaptation to the line.
An integrated voice switch with loudspeaker amplifier enables
hands-free operation. With an anti-feedback function, acoustical feedback during
can be reduced significantly. The generated supply voltage is suitable for a
listening
wide range of peripheral circuits.
Electrostatic sensitive device.
Observe precautions for handling.
Monolithic
Integrated
Feature Phone
Circuit
U4089B-P
or
open-listening
open
Rev. 4518C–CORD–10/05
Related parts for U4089B-P | ||||
---|---|---|---|---|
Part Number | Description | Manufacturer | Datasheet | Request |
![]() |
MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT | ATMEL Corporation |
| |
![]() |
MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT | ATMEL [ATMEL Corporation] |
| |
![]() |
Monolithic Integrated Feature Phone Circuit | ATMEL [ATMEL Corporation] |
| |
![]() |
Multi-standard Feature Phone Circuit With Voice Switch | ATMEL Corporation |
| |
![]() |
ATMEL Corporation | |||
![]() |
INTERVAL AND WIPE/WASH WIPER CONTROL IC WITH DELAY | ATMEL Corporation |
| |
![]() |
Low-Voltage Voice-Switched IC for Hands-Free Operation | ATMEL Corporation |
| |
![]() |
AM-FM Receiver IC U4255BM-M | ATMEL Corporation |
| |
![]() |
Multistandard Video-IF and Quasi Parallel Sound Processing | ATMEL Corporation |
| |
![]() |
ATMEL Corporation |
| ||
![]() |
ATMEL Corporation |
| ||
![]() |
High-performance EE PLD | ATMEL Corporation |
| |
![]() |
8-bit Flash Microcontroller | ATMEL Corporation |
| |
![]() |
2-Wire Serial EEPROM | ATMEL Corporation |
| |
![]() |
ATMEL Corporation |
|
U4089B-P Summary of contents |
---|