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参数资料
| 型号： | TS4974IQT |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 音频控制 |
| 英文描述： | 1 CHANNEL(S), VOLUME CONTROL CIRCUIT, DSO10 |
| 封装： | 3 X 3 MM, 0.50 MM PITCH, ROHS COMPLIANT, DFN-10 |
| 文件页数： | 20/25页 |
| 文件大小： | 319K |
| 代理商： | TS4974IQT |
Typical application schematics
TS4974
4/25
2
Typical application schematics
Figure 1.
Typical application schematics for the TS4974
Table 3.
External component descriptions
Components
Functional description
Rpu1, Rpu2
Rpd1, Rpd2
Pair of pull-up (Rpu1, Rpu2) or pull down (Rpd1, Rpd2) resistors that are
connected to the digital volume control pins
UP/DVC and DOWN/DVC.
CIN
Input coupling capacitors that block the DC voltage at the amplifier input
terminal. They form together with the amplifier’s differential input impedance
ZIN a first order high pass filter with a -3dB cut-off frequency
(fcut-off = 1 / (2 x π x ZIN x CIN)).
CS
Supply bypass capacitor that provides power supply filtering.
CB
Bypass pin capacitor that provides half supply filtering.
Cin1
330nF
Cin2
330nF
P1
Vin-
P2
Vin+
Cb
1F
S1
Volume DOWN
S2
Volume UP
VCC
Cs
1F
STBY control
Speaker
8 Ohms
470k
Rpd1
470k
Rpd1
470k
Rpu1
470k
Rpu2
VCC
DIGITAL VOLUME
CONTROL
BIAS
STBY
+
1
2
3
7
6
9
8
4
10
5
UP
DO
W
N
Vin-
Vin+
BYP ASS
STBY
Vout-
Vout+
Vc
c
GN
D
U1
TS4974 DFN10
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相关代理商/技术参数 |
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|---|---|
| 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 |
| TS4982IQT | 功能描述:音频放大器 2W Stereo Audio Amp 125 mW 16 ohm 3 lvl 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 |
| TS4984 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:2 x 1W Stereo audio power amplifier with active low standby mode |
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