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TS4973IJT Datasheet(Folha de dados) 1 Page - STMicroelectronics

Nome de Peças. TS4973IJT
descrição  1.2W TWO AUDIO INPUTS WITH GAIN CONTROL POWER AMPLIFIER WITH STANDBY MODE ACTIVE LOW
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Fbricantes  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
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1/9
s OPERATING FROM V
CC = 2.8V to 5.5V
s RAIL TO RAIL OUTPUT
s 1.2W OUTPUT POWER @ Vcc=5V, THD=1%,
F=1kHz, with 8
Load
s ULTRA LOW CONSUMPTION IN STANDBY
MODE (10nA)
s 53dB PSRR @ 217Hz from 2.8 to 5V
s LOW POP & CLICK
s ULTRA LOW DISTORTION (0.05%)
s GAIN SETTINGS PIN : GS
s UNITY GAIN STABLE
s FLIP CHIP PACKAGE 9 x 300µm bumps
DESCRIPTION
At 3.3v, the TS4973 is an Audio Power Amplifier
capable of delivering 400mW of continuous RMS
ouput power into a 8
bridged-tied loads with 1%
THD+N, and 30mW( typ ) per channel of continu-
ous average power into stereo 32
BTL loads with
0.5% THD+N from 20Hz to 20kHz. An external
standby mode control reduces the supply current
to less than 10nA. An internal over-temperature
shutdown protection is provided.
The TS4973 has been designed for high quality
audio applications such as mobile phones and to
minimize the number of external components. It
has two inputs which can be used to switch the
gain between 6dB ( internal ) or a user’s adjust-
able gain setting with one external resitance.
APPLICATIONS
s Mobile Phones (Cellular / Cordless)
s PDAs
s Laptop/Notebook computers
s Portable Audio Devices
ORDER CODE
J = Flip Chip Package - only available in Tape & Reel (JT))
PIN CONNECTIONS (top view)
Part
Number
Temperature
Range
Package
Marking
J
TS4973IJT
-40, +85°C
A73
TYPICAL APPLICATION SCHEMATIC
Cb
Cin1 Rin
RL
8 Ohms
Cs
Inputs
Audio
VCC
Bias
AV = -1
In1
In2
Bypass
Standby
Vout 1
Vout 2
+
-
+
-
1
3
6
8
2
5
7
4
9
Gain Setting
TS4973
Cin2
Standby level
threshold = 0.9V
Gain Setting level
threshold = 0.9V
TS4973IJT - FLIP CHIP
Vin1
GND
BYPASS
VOUT2
VCC
Vin2
VOUT1
GS
STBY
Vin1
GND
BYPASS
VOUT2
VCC
Vin2
VOUT1
GS
STBY
1.2W TWO AUDIO INPUTS WITH GAIN CONTROL POWER
AMPLIFIER WITH STANDBY MODE ACTIVE LOW
February 2003
ADVANCE DATA
TS4973
This is a preliminary information on a new product now in development. Details are subject to change without notice.




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