TS4994IST Datasheet

IC型號(hào)：
TS4994IST
PDF描述：
1W Differential Input/Output Audio Power Amplifier with Sele...
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764.10KB
PDF頁(yè)數(shù)：
31頁(yè)
芯片廠家：
STMICROELECTRONICS

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TS4994

Differential Input/Output Audio Power Amplifier

with Selectable Standby

鈻?/div>

Differential inputs

Near zero pop & click

100dB PSRR @ 217Hz with grounded inputs

Operating from V

= 2.5V to 5.5V

1W RAIL to RAIL output power @ Vcc=5V,

THD=1%, F=1kHz, with 8

鈩?/div>

load

90dB CMRR @ 217Hz

Ultra-low consumption in standby mode (10nA)

Selectable standby mode (active low or

active high

Ultra fast startup time: 15ms typ.

Available in DFN10 3x3, 0.5mm pitch &

MiniSO8

All lead-free packages

Pin Connections (top view)

TS4994IQT - DFN10

STBY

IN -

STBY MODE

IN +

BYPASS

O+

N/C

GND

O-

TS4994IST - MiniSO8

Description

The TS4994 is an audio power amplifier capable

of delivering 1W of continuous RMS output power

into an 8

鈩?/div>

load @ 5V. Thanks to its differential

inputs, it exhibits outstanding noise immunity.

An external standby mode control reduces the

supply current to less than 10nA. A STBY MODE

pin allows the standby pin to be active HIGH or

LOW (except in the MiniSO8 version). An internal

thermal shutdown protection is also provided,

making the device capable of sustaining short-

circuits.

The device is equipped with Common Mode

Feedback circuitry allowing outputs to be always

biased at Vcc/2 regardless of the input common

mode voltage.

The TS4994 has been designed for high quality

audio applications such as mobile phones and

requires few external components.

STBY

IN-

IN+

BYPASS

O+

Vcc

GND

O-

Applications

鈻?/div>

Mobile phones (cellular / cordless)

Laptop / notebook computers

PDAs

Portable audio devices

Order Codes

Part Number

TS4994IQT

TS4994IST

Temperature Range

-40擄C to +85擄C

Package

DFN10

MiniSO8

Packaging

Tape & Reel

Marking

K994

April 2005

Revision 4

1/31

其它有關(guān)文件
TS4994 View All Specifications
標(biāo)準(zhǔn)包裝
1
類別
集成電路 (IC)
家庭
線性 - 音頻放大器
系列
-
類型
AB 類
輸出類型
1-通道（單聲道）
在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量
1W x 1 @ 8 歐姆
電源電壓
2.5 V ~ 5.5 V
特點(diǎn)
消除爆音，差分輸入，短路和熱保護(hù)，待機(jī)
安裝類型
表面貼裝
供應(yīng)商設(shè)備封裝
8-MiniSO
封裝/外殼
8-TSSOP，8-MSOP（0.118"，3.00mm 寬）
包裝
Digi-Reel®
其它名稱
497-4452-6

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