- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98277 > TPA711DGNG4 (TEXAS INSTRUMENTS INC) 0.7 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 PDF資料下載
參數(shù)資料
| 型號： | TPA711DGNG4 |
| 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)： | 16/38頁 |
| 文件大?。?/td> | 973K |
| 代理商： | TPA711DGNG4 |
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頁當(dāng)前第16頁第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
23
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
application schematic
Figure 51 is a schematic diagram of a typical handheld audio application circuit, configured for a gain of
10 V/V.
Audio
Input
Bias
Control
VDD
6
5
7
VO+
VDD
3
1
2
4
BYPASS
IN
SE/BTL
VDD/2
CI
0.47
F
RI
10 k
CS
1
F
CB
2.2
F
RF
50 k
SHUTDOWN
VO8
GND
From System Control
CF
5 pF
CC
330
F
1 k
100 k
VDD
100 k
+
+
0.1
F
Figure 51. TPA711 Application Circuit
The following sections discuss the selection of the components used in Figure 51.
component selection
gain setting resistors, RF and RI
The gain for each audio input of the TPA711 is set by resistors RF and RI according to equation 5 for BTL mode.
(5)
BTL gain
+* 2
R
F
R
I
BTL mode operation brings about the factor 2 in the gain equation due to the inverting amplifier mirroring the
voltage swing across the load. Given that the TPA711 is a MOS amplifier, the input impedance is very high;
consequently input leakage currents are not generally a concern, although noise in the circuit increases as the
value of RF increases. In addition, a certain range of RF values is required for proper start-up operation of the
amplifier. Taken together it is recommended that the effective impedance seen by the inverting node of the
amplifier be set between 5 k
and 20 k. The effective impedance is calculated in equation 6.
(6)
Effective impedance
+
R
F
R
I
R
F )
R
I
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TPA711DRG4 | 0.35 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| TPA721D | 0.7 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| TPA721DGN | 0.7 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| TPA721DGNR | 0.7 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| TPA721DR | 0.7 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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(fēng)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(fēng)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(fēng)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA711EVM | 制造商:TI 制造商全稱:Texas Instruments 功能描述:700-mW MONO LOW-VOLTAGE AUDIO POWER AMPLIFIER |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。