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參數(shù)資料
| 型號： | TDA7293V |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | 音頻放大器 |
| 英文描述： | 120V - 100W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY |
| 中文描述： | 120伏特- 100瓦的DMOS音頻放大器靜音/意法半導(dǎo)體，由 |
| 文件頁數(shù)： | 5/13頁 |
| 文件大小： | 342K |
| 代理商： | TDA7293V |
APPLICATION SUGGESTIONS
(seeTest and ApplicationCircuits 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
μ
F
INPUT DC
DECOUPLING
HIGHER LOW
FREQUENCY
CUTOFF
C2
22
μ
F
FEEDBACK DC
DECOUPLING
HIGHER LOW
FREQUENCY
CUTOFF
C3
10
μ
F
MUTE TIME
CONSTANT
LARGER MUTE
ON/OFF TIME
SMALLER MUTE
ON/OFF TIME
C4
10
μ
F
ST-BY TIME
CONSTANT
LARGER ST-BY
ON/OFF TIME
SMALLER ST-BY
ON/OFF TIME;
POP NOISE
C5
22
μ
FXN (***)
BOOTSTRAPPING
SIGNAL
DEGRADATION AT
LOW FREQUENCY
C6, C8
1000
μ
F
SUPPLY VOLTAGE
BYPASS
C7, C9
0.1
μ
F
SUPPLY VOLTAGE
BYPASS
DANGER OF
OSCILLATION
(*) R1 = R3 for pop optimization
(**) Closed Loop Gain has to be
≥
26dB
(***) Multiplay this value for the number of modular part connected
MASTER
UNDEFINED
SLAVE
-V
S
+3V
-V
S
+1V
-V
S
D98AU821
Slave function: pin 4 (Ref to pin 8 -V
S
)
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 BoucherotCell, in order to
avoid dangerous spurious oscillations when the
speakersterminal are shorted.
The suggested Boucherot Resistor is 3.9
/2W
and the capacitoris 1
μ
F.
TDA7293
5/13
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA7293V | 制造商:STMicroelectronics 功能描述:Audio Power Amplifier IC |
| TDA7294 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:100V - 100W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY |
| TDA7294_07 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:100V - 100W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY |
| TDA7294HS | 功能描述:音頻放大器 100V, 100W DMOS AMP Up to 40V Mute STDBY 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 |
| TDA7294-HS | 制造商:STMicroelectronics 功能描述:TDA7294-HS - Bulk |
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