max9744 Maxim Integrated Products, Inc., max9744 Datasheet - Page 24

• Manufacturer Part Number: max9744
• Description: 20w Stereo Class D Speaker Amplifier With Volume Control
• Manufacturer: Maxim Integrated Products, Inc.

20W Stereo Class D Speaker Amplifier
with Volume Control
24
______________________________________________________________________________________
(SHOWN IN I
0.47μF
0.47μF
V
C
C
DD
IN
IN
2
C MODE, A
20kΩ
20kΩ
R
R
IN
IN
V
DD
V
= 29.5dB, f
TO μC
20kΩ
20kΩ
R
R
F
F
-3dB
1μF
SDA/VOL
= 17Hz, SPREAD-SPECTRUM MODE, MUTE OFF, SLAVE ADDRESS = 1001011_)
ADDR1 13
ADDR2 14
MUTE 24
SHDN 22
SYNC
SCLK 9
N.C.
FBR 18
FBL 17
INR 19
INL 16
Functional Diagrams/Typical Application Circuits
8
25
23
MAX9744
SHUTDOWN
CONTROL
CONTROL
6, 10, 21, 28
ANALOG
3V TO 3.6V
MUTE
I
BIAS
2
C
V
DD
I
2
C MODE
CONTROL
VOLUME
7, 11, 12,
15, 27
OSCILLATOR
GND
34, 35, 39, 43, 44
4.5V TO 14V
PV
BIAS
DD
PVDD
4, 5, 29, 30
PGND
41, 42
31, 32
36, 37
2, 3
40
33
38
26
20
1
BOOTL+
OUTL+
OUTL-
BOOTL-
BOOTR+
OUTR+
OUTR-
BOOTR-
BIAS
1μF
SYNCOUT
C
0.1μF
C
0.1μF
C
0.1μF
C
0.1μF
BOOT
BOOT
BOOT
BOOT
C
2.2μF
100μF
BIAS