MAX9790 Maxim Integrated Products, MAX9790 Datasheet - Page 22

• Manufacturer Part Number: MAX9790
• Description: Windows Vista-Compliant Stereo Class AB Speaker Amplifiers and DirectDrive Headphone Amplifiers
• Manufacturer: Maxim Integrated Products

Windows Vista-Compliant, Stereo Class AB Speaker
Amplifiers and DirectDrive Headphone Amplifiers
22
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LOGIC PINS CONFIGURED FOR:
SPKR_EN = 0, SPEAKER AMPLIFIERS ENABLED
HP_EN = 1, HEADPHONE AMPLIFIER ENABLED
MUTE = 1, MUTE DISABLED
GAIN1 = 0 GAIN = 0, 6dB SPEAKER GAIN
3V TO 5.5V
1.0μF
1.0μF
1.0μF
1.0μF
SPKR_INR
SPKR_INL
SPKR_EN 23
HP_INL 27
HP_INR 26
HP_EN 22
GAIN2 32
GAIN1 31
MUTE 25
2
3
4, 28
CONTROL
GND
0.1μF
AMPLIFIER
5, 21
STEREO
BTL
PGND
4.5V TO 5.5V
MAX9790
30
V
DD
8, 18
PV
TO HPV
PV
14
DD
CHARGE
PUMP
SS
C2
1.0μF
Block Diagrams (continued)
TO PV
DD
SS
13
CPV
0.1μF
SS
20
19
24
16
15
17
10
11
12
6
7
9
OUTL+
BIAS
HPL
HPR
HPV
CPGND
OUTL-
OUTR+
OUTR-
CPV
C1P
C1N
DD
DD
1.0μF
www.DataSheet4U.com
C1
1μF
3V TO 5.5V
C3
10μF