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參數(shù)資料
| 型號： | TS4604IPT |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 0.065 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO28 |
| 封裝： | 0.65 MM PITCH, ROHS COMPLIANT, TSSOP-28 |
| 文件頁數(shù)： | 11/31頁 |
| 文件大小： | 644K |
| 代理商： | TS4604IPT |
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TS4604
Application information
Doc ID 17913 Rev 1
19/31
These capacitors must be placed as close as possible to the TS4604 to minimize parasitic
inductance and resistance that have a negative impact on the audio performance.
6.5
Input coupling capacitor (Cin)
An input coupling capacitor (Cin) might be used for TS4604 operation to block any DC
component of the audio signal.
Cin starts to have an effect in the low frequency region. Cin forms with Rin a high-pass filter
with a -3 dB cut-off frequency.
Example
A differential input gain as shown in Figure 46 on page 20 with the gain equalling 0 dB
(Rin = 10 k
Ω, Rfd = 10 kΩ) and an input capacitor of 2.2 F gives:
The high-pass filter has a -3 dB cut-off frequency at 7.2 Hz in this case.
6.6
Range of the gain setting resistors
The gain is given by the external resistors Rfd divided by Rin. The feedback resistor Rfd
does not exceed 100 k
Ω for closed-loop stability reasons.
Table 7 gives the recommended resistor values and the gain for different types of
application.
Fc
3dB
–
()
1
2.
π Rin Cin
------------------------------------------ Hz
()
=
Fc
1
2.
π 10000 2.2e10
6
–
----------------------------------------------------------------
7.2Hz
==
Table 7.
Recommended resistors values
Rin
Rfd
Differential gain
Inverting gain
Non-inverting gain
10 k
Ω
10 k
Ω
0 dB
6 dB
10 k
Ω
20 k
Ω
6 dB
10 dB
10 k
Ω
50 k
Ω
14 dB
16 dB
4.7 k
Ω
47 k
Ω
20 dB
21 dB
10 k
Ω
100 k
Ω
20 dB
21 dB
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TS461 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:OUTPUT RAIL TO RAIL OPERATIONAL AMPLIFIERS |
| TS461_05 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Output Rail-to-Rail Operational Amplifiers |
| TS461C | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:OUTPUT RAIL TO RAIL OPERATIONAL AMPLIFIERS |
| TS461CD | 功能描述:運(yùn)算放大器 - 運(yùn)放 Single Rail-to-Rail RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| TS461CD | 制造商:STMicroelectronics 功能描述:IC OP AMP RRO/P SMD SOIC8 461 |
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