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參數(shù)資料
| 型號： | U209B |
| 廠商： | ATMEL CORP |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | Monolithic Integrated Feature Phone Circuit |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDIP14 |
| 封裝： | DIP-14 |
| 文件頁數(shù)： | 1/34頁 |
| 文件大小： | 677K |
| 代理商： | U209B |
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U4090B
Preliminary Information
TELEFUNKEN Semiconductors
Rev. C1, 28-Oct-96
1 (34)
Monolithic Integrated Feature Phone Circuit
Description
The
μ
c controlled telephone circuit U4090B is a linear
integrated circuit for use in feature phones, answering
machines and fax machines. It contains the speech circuit,
tone ringer interface with dc/dc converter, sidetone
equivalent and ear protection rectifiers. The circuit is line
powered and contains all components necessary for
amplification of signals and adaptation to the line.
An integrated voice switch with loudspeaker amplifier
allows loudhearing or handsfree operation. With an
anti-feedback function, acoustical feedback during
loudhearing can be reduced significantly. The generated
supply voltage is suitable for a wide range of peripheral
circuits.
Features
DC characteristic adjustable
Transmit and receive gain adjustable
Symmetrical input of microphone amplifier
Anti-clipping in transmit direction
Automatic line loss compensation
Symmetrical output of earpiece amplifier
Built-in ear protection
DTMF and MUTE input
Adjustable sidetone suppression independent
of sending and receiving amplification
Speech circuit with two sidetone networks
Built-in line detection circuit
Integrated amplifier for loudhearing operation
Anti-clipping for loudspeaker amplifier
Improved acoustical feedback suppression
Power down
Voice switch
Tone ringer interface with dc/dc converter
Zero crossing detection
Common speaker for loudhearing and tone ringer
Supply voltages for all functional blocks of a
subscriber set
Integrated transistor for short circuiting the line
voltage
Answering machine interface
Operation possible from 10 mA line currents
Benefits
Savings of one piezo electric transducer
Complete system integration of analog signal proces-
sing on one chip
Very few external components
Applications
Feature phone, answering machine, fax machine, speaker
phone
MC with
EEPROM/
DTMF
Audio
amplifier
Speech
circuit
Voice
switch
Tone
ringer
Loudhearing
and
Tone ringing
94 8741
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| U209B_07 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Phase Control IC for Tacho Applications |
| U209B3 | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:Phase Control Circuit - Tacho Applications |
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| U209B-M | 功能描述:IC PHASE CONTROL TACHO 14-DIP RoHS:否 類別:集成電路 (IC) >> PMIC - 電機和風(fēng)扇控制器，驅(qū)動器 系列:- 產(chǎn)品變化通告:ATA683(3,4)PLQW Obsolescence 09/Aug/2012 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:DC 電機控制器，無刷（BLDC），3 相 評估套件:可供 輸出數(shù):1 電流 - 輸出:100mA 電壓 - 負(fù)載:5.25 V ~ 20 V 電源電壓:5.25 V ~ 20 V 工作溫度:-40°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:48-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:48-VQFN（7x7） 包裝:剪切帶 (CT) 其它名稱:ATA6833-PLQWCT |
| U209B-MFP | 功能描述:IC PHASE CONTROL TACHO 16-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 電機和風(fēng)扇控制器，驅(qū)動器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:直流電機驅(qū)動器，步進(jìn)電機驅(qū)動器 評估套件:- 輸出數(shù):1 或 2 電流 - 輸出:750mA 電壓 - 負(fù)載:10 V ~ 40 V 電源電壓:4.5 V ~ 5.5 V 工作溫度:-20°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-BFSOP（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:24-SOP 包裝:Digi-Reel® 其它名稱:MTS62C19A-HS105DKR |
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