參數(shù)資料
型號(hào)： TPA0222PWP
廠商： Texas Instruments, Inc.
元件分類： 音頻放大器
英文描述： STEREO 2-W AUDIO POWER AMPLIFIER WITH FOUR SELECTABLE GAIN SETTINGS AND MUX CONTROL
中文描述： 立體聲2 - W音頻功率放大器，具有四種可選增益設(shè)置和MUX控制
文件頁(yè)數(shù)： 24/33頁(yè)
文件大小： 522K
代理商： TPA0222PWP
TPA0222
STEREO 2-W AUDIO POWER AMPLIFIER
WITH FOUR SELECTABLE GAIN SETTINGS AND MUX CONTROL
SLOS285 – NOVEMBER 1999
24
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
Table 2. Common Load Impedances Vs Low Frequency Output Characteristics in SE Mode
RL
CC
Lowest Frequency
3
4
8
32
330
μ
F
330
μ
F
330
μ
F
330
μ
F
330
μ
F
161 Hz
120 Hz
60 Hz
15 Hz
10,000
0.05 Hz
47,000
330
μ
F
0.01 Hz
As Table 2 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.
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 44 shows a Class-AB audio power amplifier (APA) in a BTL configuration. The TPA0222 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
×
V
O(PP)
into the power
equation, where voltage is squared, yields 4
×
the output power from the same supply rail and load impedance
(see equation 5).
Power
V
(rms)
R
L
2
(5)
V
(rms)
V
O(PP)
2 2
相關(guān)PDF資料
PDF描述
TPA2006D1DRB 1.45-W MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER WITH 1.8-V COMPATIBLE INPUT THRESHOLDS
TPA2012D2RTJ 2.1 W/CH STEREO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER
TPA2012D2YZH 2.1 W/CH STEREO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER
TPA28F800BV-B60 2-MBIT SmartVoltage BOOT BLOCK FLASH MEMORY FAMILY
TPA28F200BV-B60 2-MBIT SmartVoltage BOOT BLOCK FLASH MEMORY FAMILY
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPA0222PWPG4 功能描述:音頻放大器 St 2W 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
TPA0222PWPR 功能描述:音頻放大器 St 2W 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
TPA0222PWPRG4 功能描述:音頻放大器 St 2W 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
TPA0223 制造商:TI 制造商全稱:Texas Instruments 功能描述:2-W MONO AUDIO POWER AMPLIFIER WITH HEADPHONE DRIVE
TPA0223DGQ 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
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*