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參數(shù)資料
| 型號(hào)： | TS4974 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 1W Differential Audio Power Amplifier with Up/Down Digital Volume Control Pins |
| 中文描述： | 1W的差分音頻功率放大器向上/向下數(shù)字音量控制引腳 |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大?。?/td> | 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
I
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
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Laptop/notebook computers
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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
相關(guān)PDF資料 |
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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TS4974_07 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:1W differential audio power amplifier with up/down digital volume control pins |
| TS4974IQT | 功能描述:音頻放大器 Audio Up-Dwn Volume RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TS4975 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Stereo Headphone Drive Amplifier with Digital Volume Control via I2C Bus |
| TS4975_05 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Stereo Headphone Drive Amplifier with Digital Volume Control via I2C Bus |
| TS4975EIJT | 功能描述:音頻放大器 Stereo headphone amp RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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