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参数资料
| 型号： | TS4974 |
| 厂商： | 意法半导体 |
| 英文描述： | 1W Differential Audio Power Amplifier with Up/Down Digital Volume Control Pins |
| 中文描述： | 1W的差分音频功率放大器向上/向下数字音量控制引脚 |
| 文件页数： | 1/8页 |
| 文件大小： | 150K |
| 代理商： | TS4974 |
November 2004
This is preliminary information on a new product now in development. Details are subject to change without notice.
Revision 1
1/8
I
Operating from V
CC
= 2.5V to 5.5V
I
Zero pop&clickless circuit
I
1.W output power @ Vcc=5V, THD=1%,
F=1kHz, with 8
Load
I
Ultra low consumption in standby mode
(2μA max.)
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85dB PSRR @ 217Hz
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16 digital volume control steps
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Two up and down volume control discrete
pins
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Gain range from -33dB to + 12dB
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Integrated debouncing system
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Ultra fast start up time: 15ms typ.
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DFN10 3X3 mm pitch 0.5
Description
At 3.3v, the TS4974 is a dual power audio
amplifier capable of delivering 380mW of
continuous RMS ouput power into a 8
bridged-
tied loads with 1% THD+N. An external standby
mode control reduces the supply current to less
than 2μA. An internal over-temperature shutdown
protection is provided.
The TS4974 has been designed for high quality
audio applications such as mobile phones and for
minimizing the number of external components.
The TS4974 features a 16 step digital volume
control through two discrete control Up and Down
pins. The start-up gain is internally fixed to -12dB.
An integrated debounce system prevents voltage
pikes on UP/DOWN pins during volume control
mode to be taken into account during a debounce
time of 10ms (typ.).
Pin Connections (top view)
Applications
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Mobile phones (cellular / cordless)
I
PDAs
I
Laptop/notebook computers
I
Portable audio devices
Order Codes
TS4974IQ - Pinout
TS4974IQ DFN Package
1
2
3
4
10
BYPASS
VIN-
UP / DVC
VCC
STANDBY
5
9
8
7
6
DOWN / DVC
GND
VIN+
VOUT-
VOUT+
Part Number
Temperature Range
Package
Packaging
Marking
TS4974IQT
-40, +85°C
QFN
Tape & Reel
TBA
PRODUCT PREVIEW
TS4974
1W Differential Audio Power Amplifier
with Up/Down Digital Volume Control Pins
相关PDF资料 |
PDF描述 |
|---|---|
| TS4974IQT | 1W Differential Audio Power Amplifier with Up/Down Digital Volume Control Pins |
| TS4984IQT | 2 x 1W Stereo audio power amplifier with active low standby mode |
| TS4984 | 2 x 1W Stereo audio power amplifier with active low standby mode |
| TS4985 | 2x1.2w Stereo Audio Power Amplifier with Dedicated Standby Pins |
| TS4985EIJT | 2x1.2w Stereo Audio Power Amplifier with Dedicated Standby Pins |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TS4974_07 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:1W differential audio power amplifier with up/down digital volume control pins |
| TS4974IQT | 功能描述:音频放大器 Audio Up-Dwn Volume RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| TS4975 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Stereo Headphone Drive Amplifier with Digital Volume Control via I2C Bus |
| TS4975_05 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Stereo Headphone Drive Amplifier with Digital Volume Control via I2C Bus |
| TS4975EIJT | 功能描述:音频放大器 Stereo headphone amp RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
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