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TS4972JT

Description
1.2W AUDIO POWER AMPLIFIER WITH STANDBY MODE ACTIVE HIGH
File Size557KB,28 Pages
ManufacturerSTMicroelectronics
Websitehttp://www.st.com/
Download Datasheet View All

TS4972JT Overview

1.2W AUDIO POWER AMPLIFIER WITH STANDBY MODE ACTIVE HIGH

TS4972
1.2W
AUDIO POWER AMPLIFIER
WITH STANDBY MODE ACTIVE HIGH
s
OPERATING FROM
V
CC
= 2.5V to 5.5V
s
RAIL TO RAIL
OUTPUT
s
1.2W OUTPUT POWER @ Vcc=5V, THD=1%,
F=1kHz, with
8
Load
MODE
(10nA)
PIN CONNECTIONS
(Top View)
TS4972JT - FLIP CHIP
s
ULTRA LOW CONSUMPTION IN STANDBY
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 4
load @ 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.
TYPICAL APPLICATION SCHEMATIC
Cfeed
Rfeed
VCC
6
Audio
Input
Cin
7
Vin+
+
RL
8 Ohms
-
VCC
Rin
1
Vin-
-
Vout 1
8
Cs
7
Vin
+
6
Vcc
5
Stdby
8
Vout1
Vout2
4
Vin
Gnd
Bypass
1
2
3
APPLICATIONS
s
Mobile Phones (Cellular / Cordless)
s
PDAs
s
Laptop/Notebook computers
s
Portable Audio Devices
ORDER CODE
Part
Number
TS4972IJT
Temperature
Range
-40, +85°C
Package
Marking
J
4972
VCC
Rstb
AV = -1
3
5
Bypass
Standby
+
Bias
GND
Cb
2
Vout 2
4
TS4972
J =
Flip Chip Package - only available in Tape & Reel (JT))
January 2003
1/28
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