Rainbow Electronics MAX9755 - Manual (Page 24)

MAX9750/MAX9751/MAX9755
2.6W Stereo Audio Power Amplifiers and
DirectDrive Headphone Amplifiers
24 ______________________________________________________________________________________
HPV
DD
HPS
INR
BIAS
VOL
GAIN1
GAIN2
BEEP
3V TO 5.5V
CPV DD
C1P
C1N
CPV SS V SS GND PGND
C1
1µF
C BIAS
1µF
C
IN
1µF
C IN
1µF
C2
1µF
1µF
1µF
CPGND
INL
27
(3)
21
(25)
28
(4)
24
(28)
23
(27)
2
(6)
22
(26)
7
(11)
8
(12)
10
(14)
9
(13)
11
(15)
12
(16)
26
(2)
3, 19
(7, 23)
1
(5)
10µF
3V TO 5.5V
6, 16
(10, 20)
4
(8)
25
(1)
5
(9)
18
(22)
17
(21)
15
(19)
20
(24)
14
(18)
13
(17)
HPOUTL
HPOUTR
MAX9750
0.1µF
0.1µF
4.5V TO 5.5V
GAIN/
VOLUME
CONTROL
BTL
AMPLIFIER
RIGHT-CHANNEL
AUDIO INPUT
OUTR+
OUTR-
CHARGE
PUMP
GAIN/
VOLUME
CONTROL
HEADPHONE
DETECTION
BEEP
DETECTION
SHUTDOWN
CONTROL
GAIN/
VOLUME
CONTROL
BTL
AMPLIFIER
LEFT-CHANNEL
AUDIO INPUT
OUTL+
PV
DD
4.5V TO 5.5V
V DD
OUTL-
V DD
V
DD
V DD
SHDN
47kΩ
( ) TSSOP PIN.
Block Diagrams