MAX9879 Maxim Integrated Products, MAX9879 Datasheet - Page 8

• Manufacturer Part Number: MAX9879
• Description: Stereo Class D Audio Subsystem
• Manufacturer: Maxim Integrated Products

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Stereo Class D Audio Subsystem
with DirectDrive Headphone Amplifier
(V
trols = 0dB, BYPASS = 0, SHDN = 1. Speaker loads connected between OUT_+ and OUT_-. Headphone loads connected from HPL
or HPR to GND. R
8
DD
10
16
14
12
10
_______________________________________________________________________________________
8
6
4
2
0
8
6
4
2
0
= V
2.7
2.7
SUPPLY CURRENT vs. SUPPLY VOLTAGE
SUPPLY CURRENT vs. SUPPLY VOLTAGE
PVDDL
3.1
SOFTWARE-SHUTDOWN MODE
3.1
3.5
3.5
= V
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
SPK
PVDDR
3.9
3.9
= ∞, R
HEADPHONE MODE
4.3
4.3
= 3.7V, V
HP
4.7
4.7
= ∞. C1 = C2 = C
5.1
5.1
CCIO
5.5
5.5
= 1.8V, V
16
14
12
10
50
40
30
20
10
BIAS
8
6
4
2
0
0
GND
2.7
2.7
SUPPLY CURRENT vs. SUPPLY VOLTAGE
SUPPLY CURRENT vs. SUPPLY VOLTAGE
HARDWARE-SHUTDOWN MODE
= 1µF. T
= V
3.1
3.1
STEREO-SPEAKER MODE
PGNDL
GENERAL
3.5
3.5
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
A
= +25°C, unless otherwise noted.)
3.9
3.9
= V
PGNDR
4.3
4.3
Typical Operating Characteristics
4.7
4.7
= 0. Single-ended inputs, preamp = 0dB, volume con-
5.1
5.1
5.5
5.5
100
20
18
16
14
12
10
90
80
70
60
50
40
30
20
10
8
6
4
0
2.7
SUPPLY CURRENT vs. SUPPLY VOLTAGE
0
HEADPHONE + STEREO-SPEAKER MODE
VOLUME LEVEL vs. VOLUME STEP
3.1
4
8
3.5
SUPPLY VOLTAGE (V)
12
VOLUME STEP
3.9
16
4.3
20
f
IN
4.7
= 1kHz
24
5.1
28
5.5
32