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參數(shù)資料
| 型號(hào)： | U4089B-PFN |
| 廠商： | ATMEL CORP |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | Monolithic Integrated Feature Phone Circuit |
| 中文描述： | TELEPHONE SPEECH CKT, PDSO44 |
| 封裝： | SSOP-44 |
| 文件頁數(shù)： | 1/26頁 |
| 文件大?。?/td> | 552K |
| 代理商： | U4089B-PFN |
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Features
DC Characteristic Adjustable
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 Loudhearing 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
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 loudhearing or hands-
free operation. With an anti-feedback function, acoustical feedback during loud-
hearing can be reduced significantly. The generated supply voltage is suitable for a
wide range of peripheral circuits.
Electrostatic sensitive device.
Observe precautions for handling.
Monolithic
Integrated
Feature Phone
Circuit
U4089B-P
Rev. 4518A
–
CORD
–
05/02
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| U4089B-PFNG3 | Monolithic Integrated Feature Phone Circuit |
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| U422 | N-Channel Dual JFET |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| U4089B-PFNG3 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Monolithic Integrated Feature Phone Circuit |
| U4089B-PFNG3Y | 功能描述:電信語音調(diào)制 IC COM.CORDED-SPEECH CIRCUIT F.HANDSFREE RoHS:否 制造商:Epson Electronics America 產(chǎn)品: 應(yīng)用:Voice Guidance product 封裝 / 箱體:PQFP-52 電源電壓-最大:3.6 V, 5.5 V 最大工作溫度: 最小工作溫度: 封裝: |
| U4089B-PFNY | 功能描述:電信語音調(diào)制 IC COM.CORDED-SPEECH CIRCUIT F.HANDSFREE RoHS:否 制造商:Epson Electronics America 產(chǎn)品: 應(yīng)用:Voice Guidance product 封裝 / 箱體:PQFP-52 電源電壓-最大:3.6 V, 5.5 V 最大工作溫度: 最小工作溫度: 封裝: |
| U4090B | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:Monolithic Integrated Feature Phone Circuit |
| U4090B-FN | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:Monolithic Integrated Feature Phone Circuit |
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