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參數資料
| 型號： | U4083 |
| 元件分類： | 運動控制電子 |
| 英文描述： | Low-Power Audio Amplifier for Telephone Applications |
| 中文描述： | 低功耗音頻放大器電話應用 |
| 文件頁數： | 1/11頁 |
| 文件大小： | 132K |
| 代理商： | U4083 |
U4083B
Preliminary Information
TELEFUNKEN Semiconductors
Rev. A2, 07-Apr-97
1 (11)
Low-Power Audio Amplifier for Telephone Applications
Description
The integrated circuit, U4083B, is a low power audio
amplifier for a telephone loudspeaker. It has differential
speaker outputs to maximize the output swing at low
supply voltages. There is no need for coupler capacitors.
The U4083B has an open loop gain of 80 dB whereas the
closed loop gain is adjusted with two external resistors. A
chip disable pin permits powering down and/or muting
the input signal.
Features
Wide operating voltage range: 2 to 16 V
Battery powered application due to low quiescent
supply current: 2.7 mA typical
Chip disable input to power down the integrated
circuit
Low power down quiescent current
Drives a wide range of speaker loads
Output Power, P
o
= 250 mW @ R
L
= 32 (speaker)
Low harmonic distortion (0.5% typical)
Wide range gain adjustable: 0 dB to 46 dB
Benefits
Low number of external components
Low current consumption
Block Diagram / Application Circuit
0.1 F
–
+
–
+
4 k
4 k
125 k
50 k
50 k
Amp.1
Amp.2
Bias
circuit
VS
6
5
8
VO2
VO1
1
CD
GND
7
4
Vi
3
2
Rf
75 k
Ri
3 k
Ci
Input
C2
5 F
C1
1 F
93 7781 e
FC1
FC2
Figure 1.
Order Information
Extended Type Number
U4083B-AFP
U4083B-AFPG3
Package
SO8
SO8
Remarks
Taped and reeled
相關PDF資料 |
PDF描述 |
|---|---|
| U4083B | Low-Power Audio Amplifier for Telephone Applications |
| U4083B-AFP | Low-Power Audio Amplifier for Telephone Applications |
| U4083B-AFPG3 | Low-Power Audio Amplifier for Telephone Applications |
| U4084B-FL | LOW POWER QUAD VOLTAGE COMPARATOR |
| U4084B | Low-Voltage, Voice-Switched Circuit for Hands-Free Operation |
相關代理商/技術參數 |
參數描述 |
|---|---|
| U4083B | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:Low-Power Audio Amplifier for Telephone Applications |
| U4083B-AFP | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:Low-Power Audio Amplifier for Telephone Applications |
| U4083B-AFPG3 | 制造商:Temic / Atmel Wireless and Microcontrollers 功能描述: |
| U4083B-MFPG3 | 制造商:Atmel Corporation 功能描述:TELECOM AUDIO AMP |
| U4083B-MFPG3Y | 功能描述:音頻放大器 COM.CORDED AUDIO AMP RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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