2.2W Stereo Audio Power Amplifier
with Analog Volume Control
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (V , PV , CPV to GND) .......................+6V
Continuous Input Current (all other pins) ......................... 20mA
DD
DD
DD
GND to PGND..................................................................... 0.ꢀV
Continuous Power Dissipation (T = +70°C)
A
CPV , C1N, V to GND .........................-6.0V to (GND + 0.ꢀV)
28-Pin Thin QFN (derate 2ꢀ.8mW/°C above +70°C) .......1.9W
Junction Temperature......................................................+150°C
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+ꢀ00°C
SS
SS
Any Other Pin .............................................-0.ꢀV to (V
+ 0.ꢀV)
DD
Duration of OUT_ Short Circuit to GND or PV ........Continuous
DD
Duration of OUT_+ Short Circuit to OUT_-.................Continuous
Continuous Current (PV , OUT_, PGND) ...........................1.7A
DD
Continuous Current (CPV , C1N, C1P, CPV
V
)......850mA
DD
SS, SS
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
= PV
= CPV
= 5V, GND = PGND = CPGND = 0V, SHDN = V , C
= 1µF, C1 = C2 = 1µF, speaker load
BIAS
DD
DD
DD
DD
terminated between OUT_+ and OUT_-, GAIN1 = GAIN2 = VOL = 0V, T = T
to T
, unless otherwise noted. Typical values are
A
MIN
MAX
at T = +25°C.) (Note 1)
A
PARAMETER
GENERAL
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Voltage Range
Quiescent Supply Current
Shutdown Supply Current
Bias Voltage
V
, PV
Inferred from PSRR test
4.5
5.5
29
5
V
mA
µA
V
DD
DD
I
14
0.2
1.8
10
DD
I
SHDN = GND
SHDN
V
1.7
10
1.9
BIAS
Switching Time
t
Gain or input switching
Amplifier inputs (Note 2)
µs
kΩ
ms
SW
Input Resistance
R
20
ꢀ0
6
IN
Turn-On Time
t
25
SON
Measured between OUT_+ and OUT_-,
= +25°C
Output Offset Voltage
V
0.4
mV
OS
T
A
PV
or V
= 4.5V to 5.5V (T = +25°C)
75
90
80
DD
DD
A
Power-Supply Rejection Ratio
(Note ꢀ)
PSRR
f = 1kHz, V
= 200mV
RIPPLE P-P
dB
f = 10kHz, V
= 200mV
55
RIPPLE
P-P
R = 8Ω
0.65
1.2
0.8
1.5
2.2
0.01
0.02
L
THD+N = 1%,
f = 1kHz,
Output Power (Note 4)
P
W
%
R = 4Ω
L
OUT
T
A
= +25°C
R = ꢀΩ
L
R = 8Ω, P
= 500mW, f = 1kHz
= 1W, f = 1kHz
L
OUT
Total Harmonic Distortion Plus
Noise
THD+N
R = 4Ω, P
L
OUT
2
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