TS4872_05 Datasheet, PDF (1/29 Pages) STMicroelectronics – RAIL TO RAIL INPUT/OUTPUT 1W AUDIO POWER AMPLIFIER WITH STANDBY MODE

TS4872
RAIL TO RAIL INPUT/OUTPUT
1W AUDIO POWER AMPLIFIER WITH STANDBY MODE
■ OPERATING FROM V_CC = 2.2V to 5.5V
■ RAIL TO RAIL INPUT/OUTPUT
NOT FOR NEW DESIGN
PIN CONNECTIONS (Top View)
■ 1W OUTPUT POWER @ Vcc=5V, THD=1%,
f=1kHz, with 8Ω Load
TS4872IJT - FLIP CHIP
■ ULTRA LOW CONSUMPTION IN STANDBY
MODE (10nA)
■ 75dB PSRR @ 217Hz @ 5 & 2.6V
7
6
5
■ ULTRA LOW POP & CLICK
) _{■ ULTRA LOW DISTORTION (0.05%)}
t(s ^{■ UNITY GAIN STABLE}
uc ^{■ 8 X170µm BUMPS FLIP CHIP PACKAGE}
rod ^DESCRIPTION
P _{The TS4872 is an Audio Power Amplifier capable}
te of delivering 1W of continuous RMS Ouput Power
le ^{into 8Ω load @ 5V.}
so ^{This Audio Amplifier is exhibiting 0.1% distortion}
b level (THD) from a 5V supply for a Pout = 250mW
RMS. An external standby mode control reduces
- ^{O the supply current to less than 10nA. An internal}
) ^{shutdown protection is provided.}
t(s ^{The TS4872 has been designed for high quality}
c audio applications such as mobile phones and to
u _{minimize the number of external components.}
rod ^{The unity-gain stable amplifier can be configured}
by external gain setting resistors.
te ^{P APPLICATIONS}
le ^{■ Mobile Phones (Cellular / Cordless)}
o _{■ PDAs}
bs_{■ Laptop/Notebook computers}
O_{■ Portable Audio Devices}
Vin⁺
Vcc STDBY
8 Vout1
Vout2 4
Vin GND BYPASS
1
2
3
TYPICAL APPLICATION SCHEMATIC
Audio
Input
Rin
Cin
Cfeed
Rfeed Vcc
6
1 Vin- _-
7 Vin+ ₊
Vcc
-
Cs
Vout1 8
Vout2 4
RL
8 Ohms
3 ^Bypass
Av=-1
+
ORDER CODE
Rstb
5 ^Standby
Bias
Part
Number
Temperature ^Package
Range
J
Marking
TS4872
Cb
2
TS4872IJT -40, +85°C
●
YW4872
J = Flip Chip Package - only available in Tape & Reel (JT)
April 2005
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