參數資料
型號： TPA0103PWP
廠商： TEXAS INSTRUMENTS INC
元件分類： 音頻／視頻放大
英文描述： 2.1 W, 3 CHANNEL, AUDIO AMPLIFIER, PDSO24
封裝： GREEN, PLASTIC, HTSSOP-24
文件頁數： 28/43頁
文件大?。?/td> 1123K
代理商： TPA0103PWP
TPA0103
1.75-W 3-CHANNEL STEREO AUDIO POWER AMPLIFIER
SLOS167A – JULY 1997 – REVISED MARCH 2000
34
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
mute and shutdown modes (continued)
Table 3. Shutdown and Mute Mode Functions
INPUTS
OUTPUT
AMPLIFIER STATE
MODE A
HP/LINE
MODE B
SHUTDOWN
MUTE OUT
INPUT
OUTPUT
Low
L/R Line
3 Channel
X
—
High
X
Mute
X
High
Low
High
X
Mute
Low
High
Low
L/R HP
3 Channel
High
Low
High
L/R Line
Mute
High
Low
High
L/R HP
Mute
Low
High
Low
L/R Line
Center BTL
Low
High
Low
L/R HP
Center BTL
High
Low
High
Low
L/R Line
L/R SE
High
Low
L/R HP
L/R SE
Inputs should never be left unconnected.
X = do not care
using low-ESR capacitors
Low-ESR capacitors are recommended throughout this applications section. A real (as opposed to ideal)
capacitor can be modeled simply as a resistor in series with an ideal capacitor. The voltage drop across this
resistor minimizes the beneficial effects of the capacitor in the circuit. The lower the equivalent value of this
resistance the more the real capacitor behaves like an ideal capacitor.
5-V versus 3.3-V operation
The TPA0103 operates over a supply range of 3 V to 5.5 V. This data sheet provides full specifications for 5-V
and 3.3-V operation, as these are considered to be the two most common standard voltages. There are no
special considerations for 3.3-V versus 5-V operation as far as supply bypassing, gain setting, or stability goes.
For 3.3-V operation, supply current is reduced from 19 mA (typical) to 13 mA (typical). The most important
consideration is that of output power. Each amplifier in TPA0103 can produce a maximum voltage swing of
VDD – 1 V. This means, for 3.3-V operation, clipping starts to occur when VO(PP) = 2.3 V as opposed to VO(PP)
= 4 V at 5 V. The reduced voltage swing subsequently reduces maximum output power into an 8-
load before
distortion becomes significant.
Operation from 3.3-V supplies, as can be shown from the efficiency formula in equation 4, consumes
approximately two-thirds the supply power for a given output-power level than operation from 5-V supplies.
When the application demands less than 500 mW, 3.3-V operation should be strongly considered, especially
in battery-powered applications.
相關PDF資料
PDF描述
TPA0103PWPG4 2.1 W, 3 CHANNEL, AUDIO AMPLIFIER, PDSO24
TPA0103PWPRG4 2.1 W, 3 CHANNEL, AUDIO AMPLIFIER, PDSO24
TPA0112PWPR 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO24
TPA0112PWP 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO24
TPA0112PWPG4 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO24
相關代理商/技術參數
參數描述
TPA0103PWPG4 功能描述:音頻放大器 1.75W 3-Ch Stereo Aud 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
TPA0103PWPR 功能描述:音頻放大器 1.75-W STEREO AUDIO POWER AMPLIFIER 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
TPA0103PWPRG4 功能描述:音頻放大器 1.75-W STEREO AUDIO POWER AMPLIFIER 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
TPA0112 制造商:TI 制造商全稱:Texas Instruments 功能描述:2-W STEREO AUDIO POWER AMPLIFIER WITH FOUR SELECTABLE GAIN SETTINGS
TPA0112EVM 功能描述:音頻 IC 開發(fā)工具 TPA0112 Eval Mod RoHS:否 制造商:Texas Instruments 產品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V
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