MAX9751 Maxim Integrated Products, Inc., MAX9751 Datasheet - Page 25

• Manufacturer Part Number: MAX9751
• Description: 2.6w Stereo Audio Power Amplifiers And Directdrive Headphone Amplifiers
• Manufacturer: Maxim Integrated Products, Inc.

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
2.6W Stereo Audio Power Amplifiers and
______________________________________________________________________________________
1μF
C
C3
1μF
BIAS
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
C1P
C1N
DD
DirectDrive Headphone Amplifiers
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
10μF
4.5V TO 5.5V
3V TO 5.5V
25