MAX9755 Maxim Integrated Products, MAX9755 Datasheet - Page 23

• Manufacturer Part Number: MAX9755
• Description: 2.6W Stereo Audio Power Amplifiers and DirectDrive Headphone Amplifiers
• Manufacturer: Maxim Integrated Products

RIGHT-CHANNEL
3V TO 5.5V
( ) TSSOP PIN.
LEFT-CHANNEL
0.47µF
AUDIO INPUT
AUDIO INPUT
2.6W Stereo Audio Power Amplifiers and
______________________________________________________________________________________
1µF
C
BIAS
1µF
47kΩ
V
V
V
1µF
DD
DD
DD
C1
1µF
1µF
C
C
CPGND
IN
IN
CPV
GAIN1
GAIN2
SHDN
BEEP
BIAS
C1N
VOL
C1P
INR
INL
DD
DirectDrive Headphone Amplifiers
1
(5)
27
(3)
21
(25)
28
(4)
24
(28)
23
(27)
2
(6)
22
(26)
7
(11)
8
(12)
10
(14)
9
(13)
HEADPHONE
SHUTDOWN
DETECTION
DETECTION
CPV
CONTROL
CONTROL
VOLUME
CONTROL
CONTROL
(15)
GAIN/
VOLUME
VOLUME
BEEP
CHARGE
11
PUMP
MAX9750
GAIN/
GAIN/
SS
(16)
0.1µF
12
C2
1µF
V
SS
4.5V TO 5.5V
(1)
25
(2)
26
V
DD
GND
(7, 23)
3, 19
AMPLIFIER
AMPLIFIER
PGND
BTL
BTL
(10, 20)
6, 16
(22)
(21)
(19)
(24)
(18)
(17)
(8)
(9)
18
17
15
20
14
13
4
5
PV
OUTL+
OUTL-
OUTR+
OUTR-
HPV
HPS
HPOUTL
HPOUTR
DD
DD
Block Diagrams
0.1µF
0.1µF
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4.5V TO 5.5V
3V TO 5.5V
23