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TS4872IJT Datasheet

  • TS4872IJT

  • RAIL TO RAIL INPUT/OUTPUT 1W AUDIO POWER AMPLIFIER WITH STAN...

  • 29頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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TS4872
RAIL TO RAIL INPUT/OUTPUT
1W
AUDIO POWER AMPLIFIER WITH STANDBY MODE
s
OPERATING FROM
V
CC
= 2.2V to 5.5V
s
RAIL TO RAIL
INPUT/OUTPUT
s
1W
OUTPUT POWER @ Vcc=5V, THD=1%,
f=1kHz, with
8
鈩?/div>
Load
MODE
(10nA)
TS4872IJT - FLIP CHIP
PIN CONNECTIONS
(Top View)
s
ULTRA LOW CONSUMPTION IN STANDBY
s
75dB
PSRR @ 217Hz @ 5 & 2.6V
s
ULTRA LOW POP & CLICK
s
ULTRA LOW DISTORTION
(0.05%)
s
UNITY GAIN STABLE
s
8 X170碌m BUMPS FLIP CHIP PACKAGE
DESCRIPTION
The TS4872 is an Audio Power Amplifier capable
of delivering 1W of continuous RMS Ouput Power
into 8
鈩?/div>
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 TS4872 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.
APPLICATIONS
TYPICAL APPLICATION SCHEMATIC
8
Vout1
7
Vin
+
6
Vcc
5
STDBY
Vout2
4
Vin
GND
BYPASS
1
2
3
Cfeed
Rfeed
Vcc
6
Audio
Input
Cin
Vcc
Cs
s
Mobile Phones (Cellular / Cordless)
s
PDAs
s
Laptop/Notebook computers
s
Portable Audio Devices
ORDER CODE
Part
Number
TS4872IJT
Temperature
Range
-40, +85擄C
Package
Marking
J
q
YW4872
Rin
1
7
Vin-
Vin+
-
+
Vout1 8
RL
8 Ohms
Vcc
3
Rstb
5
Standby
Bias
GND
TS4872
Bypass
-
Av=-1
+
Vout2
4
Cb
2
J =
Flip Chip Package - only available in Tape & Reel (JT)
October 2002
1/29

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