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STMicroelectronics - 1.2W AUDIO POWER AMPLIFIER WITH STANDBY MODE ACTIVE HIGH

Numéro de référence TS4972
Description 1.2W AUDIO POWER AMPLIFIER WITH STANDBY MODE ACTIVE HIGH
Fabricant STMicroelectronics 
Logo STMicroelectronics 





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TS4972 fiche technique
TS4972
1.2W AUDIO POWER AMPLIFIER
WITH STANDBY MODE ACTIVE HIGH
s OPERATING FROM VCC = 2.5V to 5.5V
s RAIL TO RAIL OUTPUT
s 1.2W OUTPUT POWER @ Vcc=5V, THD=1%,
F=1kHz, with 8Load
s ULTRA LOW CONSUMPTION IN STANDBY
MODE (10nA)
s 75dB PSRR @ 217Hz from 2.5 to 5V
s LOW POP & CLICK
s ULTRA LOW DISTORTION (0.05%)
s UNITY GAIN STABLE
s FLIP CHIP PACKAGE 8 x 300µm bumps
DESCRIPTION
The TS4972 is an Audio Power Amplifier capable
of delivering 1.6W of continuous RMS ouput pow-
er into a 4load @ 5V.
This Audio Amplifier is exhibiting 0.1% distortion
level (THD) from a 5V supply for a Pout = 250mW
RMS. An external standby mode control reduces
the supply current to less than 10nA. An internal
shutdown protection is provided.
The TS4972 has been designed for high quality
audio applications such as mobile phones and to
minimize the number of external components.
The unity-gain stable amplifier can be configured
by external gain setting resistors.
PIN CONNECTIONS (Top View)
TS4972JT - FLIP CHIP
7 65
Vin+ Vcc Stdby
8 Vout1
Vout2 4
Vin Gnd Bypass
123
APPLICATIONS
s Mobile Phones (Cellular / Cordless)
s PDAs
s Laptop/Notebook computers
s Portable Audio Devices
ORDER CODE
Part
Number
TS4972IJT
Temperature Package
Range
J
-40, +85°C
Marking
4972
J = Flip Chip Package - only available in Tape & Reel (JT))
January 2003
TYPICAL APPLICATION SCHEMATIC
Audio
Input
Rin
Cin
VCC
Rstb
Cfeed
Rfeed
VCC
6
VCC
1 Vin- -
7 Vin+ +
3 Bypass
5 Standby Bias
-
AV = -1
+
GND
Cb 2
Cs
Vout 1 8
Vout 2 4
RL
8 Ohms
TS4972
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