MAX9776 Maxim Integrated Products, MAX9776 Datasheet - Page 14

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

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2 x 1.5W, Stereo Class D Audio Subsystem
with DirectDrive Headphone Amplifier
14
(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
-100
-110
-120
-10
-20
-30
-40
-50
-60
-70
-80
-90
0
______________________________________________________________________________________
= PV
0
f
R
GAIN = +3dB
CROSSTALK vs. INPUT AMPLITUDE
IN
L
= 1kHz
= 32Ω
DD
= CPV
INPUT AMPLITUDE (V RMS )
LEFT TO RIGHT
0.4
DD
RIGHT TO LEFT
= 3.3V, GND = PGND = CPGND = 0V, SHDN = V
MUTE-ON RESPONSE
0.8
10ms/div
1.2
MAX9775/76 toc46
Typical Operating Characteristics (continued)
SCL
2V/div
SPEAKER
OUTPUT
50mA/div
HEADPHONE
OUTPUT
2V/div
TURN-ON RESPONSE
10ms/div
MAX9775/76 toc44
DD
, I
2
C default gain settings (INA gain = +20dB, INB gain =
SCL
2V/div
SPEAKER
OUTPUT
50mA/div
HEADPHONE
OUTPUT
2V/div
MUTE-OFF RESPONSE
10ms/div
MAX9775/76 toc47
TURN-OFF RESPONSE
10ms/div
SCL
2V/div
SPEAKER
OUTPUT
50mA/div
HEADPHONE
OUTPUT
2V/div
LSP
) are terminated
MAX9775/76 toc45
SCL
2V/div
A
SPEAKER
OUTPUT
50mA/div
HEADPHONE
OUTPUT
2V/div
=