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參數(shù)資料
型號： TPA0223DGQ
廠商： Texas Instruments
文件頁數(shù)： 6/26頁
文件大?。?/td> 0K
描述： IC AMP AUDIO PWR 2W MONO 10MSOP
標(biāo)準(zhǔn)包裝： 80
類型： AB 類
輸出類型： 1-通道（單聲道），帶立體聲耳機(jī)
在某負(fù)載時最大輸出功率 x 通道數(shù)量： 2W x 1 @ 4 歐姆; 95mW x 2 @ 32 歐姆
電源電壓： 2.5 V ~ 5.5 V
特點： 消除爆音，輸入多路復(fù)用器，關(guān)機(jī)，熱保護(hù)
安裝類型： 表面貼裝
供應(yīng)商設(shè)備封裝： 10-MSOP-PowerPad
封裝/外殼： 10-TFSOP，10-MSOP（0.118"，3.00mm 寬）裸露焊盤
包裝： 管件
TPA0233
2W MONO AUDIO POWER AMPLIFIER
WITH HEADPHONE DRIVE
SLOS278D JANUARY 2000 REVISED NOVEMBER 2002
14
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
output coupling capacitor, C(C) (continued)
As Table 1 indicates, most of the bass response is attenuated into a 4-
load, an 8- load is adequate,
headphone response is good, and drive into line level inputs (a home stereo for example) is exceptional.
Furthermore, the total amount of ripple current that must flow through the capacitor must be considered when
choosing the component. As shown in the application circuit, one coupling capacitor must be in series with the
mono loudspeaker for proper operation of the stereo-mono switching circuit. For a 4-
load, this capacitor must
be able to handle about 700 mA of ripple current for a continuous output power of 2 W.
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.
bridged-tied load versus single-ended mode
Figure 24 shows a Class-AB audio power amplifier (APA) in a BTL configuration. The TPA0233 BTL amplifier
consists of two Class-AB amplifiers driving both ends of the load. There are several potential benefits to this
differential drive configuration, but initially consider power to the load. The differential drive to the speaker
means that as one side is slewing up, the other side is slewing down, and vice versa. This, in effect, doubles
the voltage swing on the load as compared to a ground referenced load. Plugging 2
× VO(PP) into the power
equation, where voltage is squared, yields 4
× the output power from the same supply rail and load impedance.
See equation 7.
Power
+
V
(RMS)
2
R
L
(7)
V
(RMS
) +
V
O(PP)
22
RL
2x VO(PP)
VO(PP)
VDD
Figure 24. Bridge-Tied Load Configuration
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPA0223DGQG4 功能描述:音頻放大器 2W Mono Aud Pwr Amp 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
TPA0223DGQR 功能描述:音頻放大器 2W Mono Aud Pwr Amp 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
TPA0223DGQRG4 功能描述:音頻放大器 2W Mono Aud Pwr Amp 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
TPA0223EVM 功能描述:音頻 IC 開發(fā)工具 TPA0223 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)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
TPA0232 制造商:TI 制造商全稱:Texas Instruments 功能描述:STEREO 2-W AUDIO POWER AMPLIFIER WITH DC VOLUME CONTROL AND MUX CONTROL
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