参数资料
型号: TPA0223DGQ
厂商: Texas Instruments
文件页数: 1/26页
文件大小: 0K
描述: IC AMP AUDIO PWR 2W MONO 10MSOP
标准包装: 80
类型: AB 类
输出类型: 1-通道(单声道),带立体声耳机
在某负载时最大输出功率 x 通道数量: 2W x 1 @ 4 欧姆; 95mW x 2 @ 32 欧姆
电源电压: 2.5 V ~ 5.5 V
特点: 消除爆音,输入多路复用器,关机,热保护
安装类型: 表面贴装
供应商设备封装: 10-MSOP-PowerPad
封装/外壳: 10-TFSOP,10-MSOP(0.118",3.00mm 宽)裸露焊盘
包装: 管件
TPA0233
2W MONO AUDIO POWER AMPLIFIER
WITH HEADPHONE DRIVE
SLOS278D JANUARY 2000 REVISED NOVEMBER 2002
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Ideal for Notebook Computers, PDAs, and
Other Small Portable Audio Devices
D 2 W Into 4 From 5-V Supply
D 0.6 W Into 4 From 3-V Supply
D Stereo Head Phone Drive
D Mono (BTL) Signal Created by Summing
Left and Right Signals
D Wide Power Supply Compatibility
3 V to 5 V
D Meets PC99 Portable Specs (target)
D Low Supply Current
4 mA Typical at 5 V
3.3 mA Typical at 3 V
D Shutdown Control ...1 A Typical
D Shutdown Pin is TTL Compatible
D 40°C to 85°C Operating Temperature
Range
D Space-Saving, Thermally-Enhanced MSOP
Packaging
description
The TPA0233 is a 2-W mono bridge-tied-load (BTL) amplifier designed to drive speakers with as low as 4-
impedance. The mono signal is created by summing left and right inputs. The amplifier can be reconfigured on
the fly to drive two stereo single-ended (SE) signals into head phones. This makes the device ideal for use in
small notebook computers, PDAs, digital personal audio players, anyplace a mono speaker and stereo
headphones are required. From a 5-V supply, the TPA0233 deliver 2 W of power into a 4-
speaker.
The gain of the input stage is set by the user-selected input resistor and a 50-k
internal feedback resistor
(AV = RF/ RI). The power stage is internally configured with a gain of 1.25 V/V in SE mode, and 2.5 V/V in
BTL mode. Thus, the overall gain of the amplifier is 62.5 k
/ RI in SE mode and 125 k/ RI in BTL mode. The
input terminals are high-impedance CMOS inputs, and can be used as summing nodes.
The TPA0233 is available in the 10-pin thermally-enhanced MSOP package (DGQ) and operates over an
ambient temperature range of 40
°C to 85°C.
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
2002, Texas Instruments Incorporated
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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FILT_CAP
SHUTDOWN
VDD
BYPASS
RIN
LO/MO
LIN
GND
ST/MN
RO/MO+
DGQ PACKAGE
(TOP VIEW)
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