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参数资料
| 型号： | TS4984IQT |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 1 W, 2 CHANNEL, AUDIO AMPLIFIER, QCC16 |
| 封装： | 4 X 4 MM, 0.50 MM PITCH, LEAD FREE, TQFN-16 |
| 文件页数： | 17/29页 |
| 文件大小： | 901K |
| 代理商： | TS4984IQT |
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TS4984
Application Information
24/29
4.9 Application example: Differential-input BTL power stereo amplifier
The schematic in Figure 69 shows how to design the TS4984 to work in differential-input mode. For this
discussion, only the left-channel amplifier will be referred to.
Let:
R1R =R2L =R1, R2R =R2L =R2
CinR = CinL =Cin
The gain of the amplifier is:
In order to reach the optimal performance of the differential function, R1 and R2 should be matched at 1%
maximum.
Figure 69: Differential input amplifier configuration
Gvdif = 2
R2
R1
-------
×
R1L
CinL
R2L
VCC
+ Cs
+ Cb
Neg. Input LEFT
8 Ohms
LEFT Speaker
8 Ohms
RIGHT Speaker
R1R
CinR
R2R
Neg. Input RIGHT
StandBy
Control
R1L
CinL
Pos. Input LEFT
R1R
CinR
Pos. Input RIGHT
R2L
R2R
Bias
StandBy
VC
C
1
G
ND1
BypassL
G
ND2
VC
C
2
VO-L
VO+L
VO-R
VO+R
IN-L
IN+L
IN+R
IN-R
+
-
+
-
+
-
AV = -1
+
-
AV = -1
BypassR
TS4984
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相关代理商/技术参数 |
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|---|---|
| TS4985 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:2x1.2w Stereo Audio Power Amplifier with Dedicated Standby Pins |
| TS4985EIJT | 功能描述:音频放大器 2x1.2W stereo audio 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 |
| TS4985EIKJT | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:2x1.2w Stereo Audio Power Amplifier with Dedicated Standby Pins |
| TS4985EKIJT | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:2x1.2w Stereo Audio Power Amplifier with Dedicated Standby Pins |
| TS4990 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:1W AUDIO POWER AMPLIFIER WITH ACTIVE LOW STANDBY MODE |
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