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TS4961TIQT

Description
Audio Amplifiers MONO CLASS D AUDIO PWR AMP
Categorysemiconductor    Analog mixed-signal IC   
File Size1MB,49 Pages
ManufacturerSTMicroelectronics
Websitehttp://www.st.com/
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TS4961TIQT Overview

Audio Amplifiers MONO CLASS D AUDIO PWR AMP

TS4961TIQT Parametric

Parameter NameAttribute value
Product CategoryAudio Amplifiers
ManufacturerSTMicroelectronics
RoHSDetails
ProductAudio Amplifiers
ClassClass-D
Output Power1.6 W
Mounting StyleSMD/SMT
Package / CaseQFN-16
THD plus Noise2 %
Supply Voltage - Max4.3 V
Supply Voltage - Min2.4 V
Maximum Operating Temperature+ 85 C
Minimum Operating Temperature- 40 C
PackagingReel
PackagingCut Tape
CMRR - Common Mode Rejection Ratio57 dB
Height0.88 mm
Input TypeDifferential, Single
Length3 mm
Operating Supply Current2.1 mA
Factory Pack Quantity4000
Width3 mm
Unit Weight0.002014 oz
TS4961T
Mono class D audio power amplifier with dedicated analog switch
Features
QFN 16 3 x 3 mm
Wide operating voltage range from
V
CC
= 2.4 V to 4.3 V
Audio amplifier standby mode active low
Output power: 1.6 W at 4.2 V or 0.75 W at
3.0 V into 4
Ω
with 1% THD+N maximum
Output power: 0.95 W at 4.2 V or 0.45 W at
3.0 V into 8
Ω
with 1% THD+N maximum
Adjustable gain via external resistors
Low current consumption 2 mA at 3 V
Efficiency: 88% typical
Signal-to-noise ratio: 85 dB typical
PSRR: 63 dB typical at 217 Hz with 6 dB gain
PWM base frequency: 250 kHz
Low pop and click noise
Dual Power SPST with separated control
Ultra-high off-isolation on analog switch:
-80 dB typical from 20 Hz to 20 kHz
TS4961TIQT pinout
Applications
Cellular telephones
PDAs
Notebook PCs
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Description
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The audio amplifying gain of the device can be
controlled via two external gain-setting resistors. It
is designed to operate from 2.4 to 4.3 V, making
this device ideal for portable applications.
The TS4961T is a smart combination of one
mono class D audio power amplifier and a
high-speed CMOS low-voltage dual power analog
SPST.
One of the key functions of this device is the
switch mode of the various audio signals coming
from the codec or baseband through the
loudspeaker. It can drive up to 1.6 W into a 4
Ω
load and 0.95 W into an 8
Ω
load. It achieves an
outstanding efficiency of up to 88% typical.
September 2008
Rev 1
1/49
www.st.com
49
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