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參數(shù)資料
| 型號： | TDA749313TR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 3 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO24 |
| 封裝： | ROHS COMPLIANT, MO-153ADT, SSOP-24 |
| 文件頁數(shù)： | 10/30頁 |
| 文件大小： | 863K |
| 代理商： | TDA749313TR |
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Application information
TDA7493
18/30
Doc ID 14570 Rev 5
5.8.1
Single-ended input application
To use the device with a single-ended source, one input is AC connected to ground (via a
capacitor) and the other input is connected to the audio source. This is designed as a fully
differential input. The input scheme is shown in Figure 12.
However, to avoid the start-up pop noise, it is important to equalize, as much as possible,
the charging currents in the positive and negative inputs. Any imbalance in these charging
currents will be amplified and result in the familiar turn-on pop.
Figure 12.
Single-ended input application
Since the input charging currents in the circuit of Figure 12 can be different it is necessary to
add two resistors, R0, as shown in the circuit of Figure 13. In this way the currents in the two
branches of the differential input are better balanced and this can lead to the elimination of
the turn-on pop noise.
Figure 13.
Anti-pop configuration for single-ended input application
GND
cin
TDA7493
Input stage
-
+
Au
di
oS
ou
rce
OUTP
INP
INN
Rin
Rfb
Cin
GND
Cin
TDA7493
Input stage
-
+
Audio
S
ou
rce
OUTP
INP
INN
Rin
Rfb
R0
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PDF描述 |
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| TDA7493 | 3 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO24 |
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| TDA7495 | 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PZFM15 |
| TDA7496SA | 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PZFM15 |
| TDA7496SSA | 5.5 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM15 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA7494 | 功能描述:音頻放大器 10W DC Amp w/Vol Cnt 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 |
| TDA7494S | 功能描述:音頻放大器 Video switch chip 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 |
| TDA7494SA | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5W+5W AMPLIFIER WITH DC VOLUME CONTROL |
| TDA7495 | 功能描述:音頻放大器 11W DC Amp w/Vol Cnt 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 |
| TDA7495S | 功能描述:音頻放大器 11W/11W AMPLIFIER 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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