MAX9755 Maxim Integrated Products, MAX9755 Datasheet - Page 24

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

2.6W Stereo Audio Power Amplifiers and
DirectDrive Headphone Amplifiers
24
______________________________________________________________________________________
3V TO 5.5V
( ) TSSOP PIN.
LOGIC PINS CONFIGURED FOR:
GAIN = 1, 9dB SPEAKER GAIN/0dB HEADPHONE GAIN.
IN1/2 = 1, SELECTED INPUT LINE 1.
SHDN = 1, PART ACTIVE.
RIGHT CHANNEL
RIGHT CHANNEL
LEFT CHANNEL
LEFT CHANNEL
AUDIO INPUT C
AUDIO INPUT
AUDIO INPUT
AUDIO INPUT
1µF
C
BIAS
1µF
1µF
1µF
1µF
1µF
V
V
V
C
C
C
DD
DD
DD
1µF
IN
IN
IN
IN
C1
CPGND
CPV
SHDN
IN1/2
GAIN
INR1
INR2
BIAS
INL1
INL2
C1N
C1P
DD
1
(5)
2
(6)
27
(3)
28
(4)
21
(25)
24
(28)
23
(27)
22
(26)
7
(11)
8
(12)
10
(14)
9
(13)
HEADPHONE
SHUTDOWN
DETECTION
MUX AND
CONTROL
CONTROL
CV
(15)
GAIN
CHARGE
11
MAX9751
INPUT
INPUT
PUMP
SS
MUX
MUX
(16)
0.1µF
12
C2
1µF
V
SS
4.5V TO 5.5V
25
(1)
26
(2)
V
DD
GND
(7, 23)
3, 19
AMPLIFIER
AMPLIFIER
PGND
BTL
BTL
6, 16 (10, 20)
Block Diagrams (continued)
(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
0.1µF
0.1µF
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4.5V TO 5.5V
3V TO 5.5V