TS4973 Datasheet, PDF (1/9 Pages) STMicroelectronics – 1.2W TWO AUDIO INPUTS WITH GAIN CONTROL POWER AMPLIFIER WITH STANDBY MODE ACTIVE LOW

TS4973
1.2W TWO AUDIO INPUTS WITH GAIN CONTROL POWER
AMPLIFIER WITH STANDBY MODE ACTIVE LOW
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 8Ω 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
ADVANCE DATA
PIN CONNECTIONS (top view)
TS4973IJT - FLIP CHIP
Vin2
VCC
STBY
VOUT1
GS
VOUT2
Vin1
GND
BYPASS
At 3.3v, the TS4973 is an Audio Power Amplifier
capable of delivering 400mW of continuous RMS
ouput power into a 8Ω bridged-tied loads with 1%
THD+N, and 30mW( typ ) per channel of continu-
ous average power into stereo 32Ω 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.
TYPICAL APPLICATION SCHEMATIC
APPLICATIONS
s Mobile Phones (Cellular / Cordless)
s PDAs
s Laptop/Notebook computers
s Portable Audio Devices
ORDER CODE
Part
Number
TS4973IJT
Temperature ^Package
Range
J
-40, +85°C
•
Marking
A73
VCC
6
Audio
Inputs
Cin1 Rin
1 In1
Cin2
Gain Setting level
threshold = 0.9V
7 In2
9 Gain Setting
Standby level
threshold = 0.9V
3 Bypass
5 Standby _Bias
-
+
-
AV = -1
+
Cb
2
Cs
Vout 1 8
Vout 2 4
TS4973
J = Flip Chip Package - only available in Tape & Reel (JT))
February 2003
This is a preliminary information on a new product now in development. Details are subject to change without notice.
RL
8 Ohms
1/9