- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98277 > TPA711DGN (TEXAS INSTRUMENTS INC) 0.7 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 PDF資料下載
參數(shù)資料
| 型號： | TPA711DGN |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 0.7 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| 封裝： | GREEN, PLASTIC, MSOP-8 |
| 文件頁數(shù)： | 17/38頁 |
| 文件大?。?/td> | 973K |
| 代理商： | TPA711DGN |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁當前第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁
TPA711
700mW MONO LOW VOLTAGE AUDIO POWER AMPLIFIER
SLOS230D NOVEMBER 1998 REVISED OCTOBER 2002
24
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
component selection (continued)
As an example consider an input resistance of 10 k
and a feedback resistor of 50 k. The BTL gain of the
amplifier would be 10 V/V and the effective impedance at the inverting terminal would be 8.3 k
, which is well
within the recommended range.
For high performance applications, metal film resistors are recommended because they tend to have lower
noise levels than carbon resistors. For values of RF above 50 k, the amplifier tends to become unstable due
to a pole formed from RF and the inherent input capacitance of the MOS input structure. For this reason, a small
compensation capacitor of approximately 5 pF should be placed in parallel with RF when RF is greater than
50 k
. This, in effect, creates a low pass filter network with the cutoff frequency defined in equation 7.
(7)
3 dB
fc
f
c(lowpass) +
1
2
pR
F
C
F
For example, if RF is 100 k and CF is 5 pF, then fc is 318 kHz, which is well outside of the audio range.
input capacitor, CI
In the typical application an input capacitor, CI, is required to allow the amplifier to bias the input signal to the
proper dc level for optimum operation. In this case, CI and RI form a high-pass filter with the corner frequency
determined in equation 8.
(8)
f
c(highpass) +
1
2
pR
I
C
I
3 dB
fc
The value of CI is important to consider as it directly affects the bass (low frequency) performance of the circuit.
Consider the example where RI is 10 k and the specification calls for a flat bass response down to 40 Hz.
Equation 8 is reconfigured as equation 9.
(9)
C
I +
1
2
pR
I
fc
相關PDF資料 |
PDF描述 |
|---|---|
| TPA711DGNR | 0.7 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| TPA711DR | 0.35 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| TPA711DGNRG4 | 0.7 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| TPA711DG4 | 0.35 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| TPA711DGNG4 | 0.7 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TPA711DGNG4 | 功能描述:音頻放大器 Mono Class-AB w/Mono Hdphone Drive 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA711DGNR | 功能描述:音頻放大器 700mW Lw V Audio 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA711DGNRG4 | 功能描述:音頻放大器 Mono Class-AB w/Mono Hdphone Drive 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA711DR | 功能描述:音頻放大器 700mW Lw V Audio 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA711DRG4 | 功能描述:音頻放大器 Mono Class-AB w/Mono Hdphone Drive 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復。