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參數資料
| 型號： | TS4990IDT |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 1.2 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| 封裝： | LEAD FREE, SOP-8 |
| 文件頁數： | 27/32頁 |
| 文件大小： | 714K |
| 代理商： | TS4990IDT |
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Typical application schematics
TS4990
4/32
2
Typical application schematics
Figure 1.
Typical application schematics
Table 3.
Component descriptions
Component
Functional description
Rin
Inverting input resistor that sets the closed loop gain in conjunction with Rfeed. This
resistor also forms a high pass filter with Cin (Fc = 1 / (2 x Pi x Rin x Cin)).
Cin
Input coupling capacitor that blocks the DC voltage at the amplifier input terminal.
Rfeed
Feed back resistor that sets the closed loop gain in conjunction with Rin.
Cs
Supply bypass capacitor that provides power supply filtering.
Cb
Bypass pin capacitor that provides half supply filtering.
Cfeed
Low pass filter capacitor allowing to cut the high frequency (low pass filter cut-off
frequency 1/ (2 x Pi x Rfeed x Cfeed)).
AV
Closed loop gain in BTL configuration = 2 x (Rfeed / Rin).
Exposed pad
DFN8 exposed pad is electrically connected to pin 7. See DFN8 package
information on page 28 for more information.
Rfeed
Rin
Audio In
Cfeed
Vcc
Cin
+
Cs
+
Cb
Standby
Control
Speaker
8Ohms
Bias
AV = -1
Vin-
Vin+
Bypass
Standby
VC
C
GN
D
Vout 1
Vout 2
+
-
+
-
TS4990
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相關代理商/技術參數 |
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|---|---|
| TS4990IJT | 制造商:ST 功能描述:1W AUDIO POWER AMPLIFIER WITH ACTIVE LOW STANDBY MODE |
| TS4990IQT | 功能描述:音頻放大器 1.2W audio pow. amp. RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TS4990IST | 功能描述:音頻放大器 1.2W Audio Power Amp RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TS4990JT | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:1W AUDIO POWER AMPLIFIER WITH ACTIVE LOW STANDBY MODE |
| TS4994 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:1W Differential Input/Output Audio Power Amplifier with Selectable Standby |
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