max9789a Maxim Integrated Products, Inc., max9789a Datasheet - Page 21

• Manufacturer Part Number: max9789a
• Description: Windows Vista-compliant, Stereo Class Ab Speaker Amplifiers And Directdrive Headphone Amplifiers Integrated Products
• Manufacturer: Maxim Integrated Products, Inc.

Windows Vista-Compliant, Stereo Class AB Speaker
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
Amplifiers and DirectDrive Headphone Amplifiers
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
MAX9790A
4.5V TO 5.5V
30
V
DD
8, 18
PV
TO HPV
PV
14
DD
CHARGE
PUMP
SS
C2
1.0µF
Block Diagrams (continued)
TO PV
DD
SS
CPV
13
0.1µF
SS
17
20
19
24
16
15
10
11
12
6
7
9
OUTL+
BIAS
HPL
HPR
HPV
CPGND
OUTL-
OUTR+
OUTR-
CPV
C1P
C1N
DD
DD
1.0µF
C1
1µF
3V TO 5.5V
C3
10µF
21