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參數(shù)資料
| 型號(hào)： | TPA321DR |
| 元件分類： | 音頻放大器 |
| 英文描述： | Single Audio Amplifier |
| 中文描述： | 單音頻放大器 |
| 文件頁數(shù)： | 1/22頁 |
| 文件大?。?/td> | 424K |
| 代理商： | TPA321DR |
TPA321
350-mW MONO AUDIO POWER AMPLIFIER
WITH DIFFERENTIAL INPUTS
SLOS312A – JUNE 2000 – REVISED JUNE 2000
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Fully Specified for 3.3-V and 5-V Operation
Wide Power Supply Compatibility
2.5 V – 5.5 V
Output Power for R
L
= 8
– 350 mW at V
DD
= 5 V
– 250 mW at V
DD
= 3.3 V
Ultralow Supply Current in Shutdown
Mode . . . 0.15
μ
A
Thermal and Short-Circuit Protection
Surface-Mount Packaging
– SOIC
– PowerPAD
MSOP
description
The TPA321 is a bridge-tied load (BTL) audio power amplifier developed especially for low-voltage applications
where internal speakers are required. Operating with a 3.3-V supply, the TPA321 can deliver 250-mW of
continuous power into a BTL 8-
load at less than 1% THD+N throughout voice band frequencies. Although
this device is characterized out to 20 kHz, its operation was optimized for narrower band applications such as
cellular communications. The BTL configuration eliminates the need for external coupling capacitors on the
output in most applications, which is particularly important for small battery-powered equipment. This device
features a shutdown mode for power-sensitive applications with a quiescent current of 0.15
μ
A during shutdown.
The TPA321 is available in an 8-pin SOIC surface-mount package and the surface-mount PowerPAD
MSOP,
which reduces board space by 50% and height by 40%.
Audio
Input
Bias
Control
VDD
350 mW
6
5
7
VO+
VDD
1
2
4
BYPASS
IN –
VDD/2
CI
RI
CS
1
μ
F
CB
0.1
μ
F
RF
SHUTDOWN
VO–
8
GND
From System Control
3
IN+
–
+
–
+
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Copyright
2000, Texas Instruments Incorporated
1
2
3
4
8
7
6
5
SHUTDOWN
BYPASS
IN+
IN–
V
O
–
GND
V
DD
V
O
+
D OR DGN PACKAGE
(TOP VIEW)
PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPA321DRG4 | 功能描述:音頻放大器 350-mW Low-Voltage w/diff inputs 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 |
| TPA321EVM | 功能描述:音頻 IC 開發(fā)工具 TPA321 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V |
| TPA3221DDV | 功能描述:HIGH POWER AMPLIFIER 制造商:texas instruments 系列:- 包裝:管件 零件狀態(tài):在售 類型:D 類 電壓 - 電源:7 V ~ 32 V 安裝類型:表面貼裝 工作溫度:0°C ~ 70°C 供應(yīng)商器件封裝:44-HTSSOP 封裝/外殼:44-TSSOP（0.240"，6.10mm 寬）裸露焊盤 標(biāo)準(zhǔn)包裝:35 |
| TPA3244DDWR | 功能描述:IC AMP AUDIO CLASS D 44-HTSSOP 制造商:texas instruments 系列:- 包裝:剪切帶（CT） 零件狀態(tài):在售 類型:D 類 輸出類型:2 通道（立體聲） 不同負(fù)載時(shí)的最大輸出功率 x 通道數(shù):60W x 2 @ 8 歐姆 電壓 - 電源:12 V ~ 31.5 V 特性:消除爆音，短路保護(hù) 安裝類型:表面貼裝 工作溫度:最高 750.2°F（399°C） 供應(yīng)商器件封裝:44-HTSSOP 封裝/外殼:44-TSSOP（0.240"，6.10mm 寬）裸露焊盤 標(biāo)準(zhǔn)包裝:1 |
| TPA3244EVM | 功能描述:EVAL BOARD FOR TPA3244 制造商:texas instruments 系列:PurePath? 零件狀態(tài):在售 放大器類型:D 類 輸出類型:2 通道（立體聲） 不同負(fù)載時(shí)的最大輸出功率 x 通道數(shù):100W x 2 @ 4 歐姆 電壓 - 電源:14 V ~ 31.5 V 板類型:完全填充 使用的 IC/零件:TPA3244 所含物品:板 標(biāo)準(zhǔn)包裝:1 |
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