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TS4972IJTSTN/a46678avai1.2W POWER AUDIO AMPLIFIER WITH STANDBY MODE ACTIVE HIGH


TS4972IJT ,1.2W POWER AUDIO AMPLIFIER WITH STANDBY MODE ACTIVE HIGHELECTRICAL CHARACTERISTICSV = +5V, GND = 0V, T = 25°C (unless otherwise specified) CC ambSymbol ..
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TS4972IJT
1.2W POWER AUDIO AMPLIFIER WITH STANDBY MODE ACTIVE HIGH
OPERATING FROM VCC = 2.5V to 5.5V RAIL TO RAIL OUTPUT 1.2W OUTPUT POWER @ Vcc=5V, THD=1%, F=1kHz, with 8Ω Load ULTRA LOW CONSUMPTION IN STANDBY
MODE (10nA) 75dB PSRR @ 217Hz from 2.5 to 5V LOW POP & CLICK ULTRA LOW DISTORTION (0.05%) UNITY GAIN STABLE 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 4Ω 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.
APPLICATIONS
Mobile Phones (Cellular / Cordless) PDAs Laptop/Notebook computers Portable Audio Devices
ORDER CODE
PIN CONNECTIONS (Top View)
1.2W AUDIO POWER AMPLIFIER

WITH STANDBY MODE ACTIVE HIGH
TS4972
TS4972
ABSOLUTE MAXIMUM RATINGS
OPERATING CONDITIONS
All voltages values are measured with respect to the ground pin. The magnitude of input signal must never exceed VCC + 0.3V / GND - 0.3V Device is protected in case of over temperature by a thermal shutdown active @ 150°C. Exceeding the power derating curves during a long period, involves abnormal operating condition. With Heat Sink Surface = 125mm2
TS4972
ELECTRICAL CHARACTERISTICS

VCC = +5V, GND = 0V, Tamb = 25°C (unless otherwise specified)
VCC = +3.3V, GND = 0V, Tamb = 25°C (unless otherwise specified)3) Standby mode is actived when Vstdby is tied to Vcc Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is an added sinus signal to Vcc @ f = 217Hz Standby mode is actived when Vstdby is tied to Vcc Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is an added sinus signal to Vcc @ f = 217Hz
3. All electrical values are made by correlation between 2.6V and 5V measurements
TS4972
ELECTRICAL CHARACTERISTICS

VCC = 2.6V, GND = 0V, Tamb = 25°C (unless otherwise specified)

REMARKS
1. All measurements, except PSRR measurements, are made with a supply bypass capacitor Cs = 100μF.
2. External resistors are not needed for having better stability when supply @ Vcc down to 3V. By the way,

the quiescent current remains the same.
3. The standby response time is about 1μs.
Standby mode is actived when Vstdby is tied to Vcc Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is an added sinus signal to Vcc @ f = 217Hz
TS4972
Fig. 1 : Open Loop Frequency Response
Fig. 3 : Open Loop Frequency Response
Fig. 5 : Open Loop Frequency Response
Fig. 2 : Open Loop Frequency Response
Fig. 4 : Open Loop Frequency Response
Fig. 6 : Open Loop Frequency Response
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