MAX9776 Maxim Integrated Products, MAX9776 Datasheet - Page 7

• Manufacturer Part Number: MAX9776
• Description: (MAX9775 / MAX9776) Stereo Class D Audio Subsystem
• Manufacturer: Maxim Integrated Products

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(V
INC gain = 0dB, volume setting = 0dB, mono path gain = 0dB, SHDN = 1, SSM = 1). Speaker load resistors (R
between OUT_+ and OUT_-, headphone load resistors are terminated to GND, unless otherwise stated. C1 = C2 = C3 = 1µF. T
+25°C, unless otherwise noted.)
DD
0.001
0.001
0.01
0.01
0.1
0.1
= PV
1
1
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
10
10
V
R
V
R
DD
L
DD
DD
L
= 8Ω
= 4Ω
= 3.3V
= 5V
P
= CPV
OUT
100
2 x 1.5W, Stereo Class D Audio Subsystem
100
P
P
OUT
= 400mW
OUT
vs. FREQUENCY
vs. FREQUENCY
FREQUENCY (Hz)
FREQUENCY (Hz)
= 300mW
= 1000mW
DD
_______________________________________________________________________________________
P
OUT
= 3.3V, GND = PGND = CPGND = 0V, SHDN = V
1k
1k
= 150mW
with DirectDrive Headphone Amplifier
10k
10k
100k
100k
0.001
0.001
0.01
0.01
0.1
0.1
1
1
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
10
10
V
R
V
R
P
DD
L
DD
L
OUT
P
= 8Ω
= 8Ω
OUT
= 5V
= 3.3V
FFM
= 500mW
= 150mW
100
100
P
OUT
vs. FREQUENCY
vs. FREQUENCY
FREQUENCY (Hz)
FREQUENCY (Hz)
= 750mW
SSM
1k
1k
Typical Operating Characteristics
DD
, I
10k
10k
2
C default gain settings (INA gain = +20dB, INB gain =
100k
100k
0.001
0.001
0.01
0.01
100
0.1
0.1
10
1
1
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
10
0
V
R
V
R
DD
L
P
DD
L
= 4Ω
OUT
= 4Ω
= 3.3V
= 5V
0.4
= 400mW
f = 20Hz
100
vs. OUTPUT POWER
P
vs. FREQUENCY
OUT
OUTPUT POWER (W)
FREQUENCY (Hz)
= 150mW
0.8
LSP
1k
) are terminated
1.2
10k
f = 1kHz
1.6
f = 10kHz
A
=
100k
2.0
7