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参数资料
| 型号： | TDA7295S |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 80 W, 1 CHANNEL, AUDIO AMPLIFIER, PZFM15 |
| 封装： | MULTIWATT-15 |
| 文件页数： | 9/13页 |
| 文件大小： | 391K |
| 代理商： | TDA7295S |
APPLICATION SUGGESTIONS (see Test and Application Circuits of the Fig. 1)
The recommended values of the external components are those shown on the application circuit of Fig-
ure 1. Different values can be used; the following table can help the designer.
COMPONENTS
SUGGESTED VALUE
PURPOSE
LARGER THAN
SUGGESTED
SMALLER THAN
SUGGESTED
R1 (*)
22k
INPUT RESISTANCE
INCREASE INPUT
IMPEDANCE
DECREASE INPUT
IMPEDANCE
R2
680
CLOSED LOOP GAIN
SET TO 30dB (**)
DECREASE OF GAIN INCREASE OF GAIN
R3 (*)
22k
INCREASE OF GAIN
DECREASE OF GAIN
R4
22k
ST-BY TIME
CONSTANT
LARGER ST-BY
ON/OFF TIME
SMALLER ST-BY
ON/OFF TIME;
POP NOISE
R5
10k
MUTE TIME
CONSTANT
LARGER MUTE
ON/OFF TIME
SMALLER MUTE
ON/OFF TIME
C1
0.47
F
INPUT DC
DECOUPLING
HIGHER LOW
FREQUENCY
CUTOFF
C2
22
F
FEEDBACK DC
DECOUPLING
HIGHER LOW
FREQUENCY
CUTOFF
C3
10
F
MUTE TIME
CONSTANT
LARGER MUTE
ON/OFF TIME
SMALLER MUTE
ON/OFF TIME
C4
10
F
ST-BY TIME
CONSTANT
LARGER ST-BY
ON/OFF TIME
SMALLER ST-BY
ON/OFF TIME;
POP NOISE
C5
22
FXN (***)
BOOTSTRAPPING
SIGNAL
DEGRADATION AT
LOW FREQUENCY
C6, C8
1000
F
SUPPLY VOLTAGE
BYPASS
C7, C9
0.1
F
SUPPLY VOLTAGE
BYPASS
DANGER OF
OSCILLATION
(*) R1 = R3 for pop optimization
(**) Closed Loop Gain has to be
≥ 26dB
(***) Multiply this value for the number of modular part connected
MASTER
UNDEFINED
SLAVE
-VS +3V
-VS +1V
-VS
D98AU821
Slave function: pin 4 (Ref to pin 8 -VS)
Note:
If in the application, the speakers are connected
via long wires, it is a good rule to add between
the output and GND, a Boucherot Cell, in order to
avoid dangerous spurious oscillations when the
speakers terminal are shorted.
The suggested Boucherot Resistor is 3.9
/2W
and the capacitor is 1
F.
TDA7295S
5/13
相关PDF资料 |
PDF描述 |
|---|---|
| TDA7295 | 80 W, 1 CHANNEL, AUDIO AMPLIFIER, PZFM15 |
| TDA7296AV | 30 W, 1 CHANNEL, AUDIO AMPLIFIER, PZFM15 |
| TDA7296SV | 60 W, 1 CHANNEL, AUDIO AMPLIFIER, PZFM15 |
| TDA7296S | 60 W, 1 CHANNEL, AUDIO AMPLIFIER, PZFM15 |
| TDA7296V | 60 W, 1 CHANNEL, AUDIO AMPLIFIER, PZFM15 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TDA7295SV | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:80V - 80W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY |
| TDA7295V | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:80V - 80W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY |
| TDA7296 | 功能描述:音频放大器 60W Audio Amplifier 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 |
| TDA-7296 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:70V - 60W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY |
| TDA7296_05 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:70V - 60W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY |
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