max9744 Maxim Integrated Products, Inc., max9744 Datasheet - Page 25

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

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 25
© 2007 Maxim Integrated Products
PROCESS: BICMOS
(SHOWN IN ANALOG MODE, A
0.47μF
0.47μF
C
C
IN
IN
V
DD
20kΩ
20kΩ
R
R
IN
IN
Functional Diagrams/Typical Application Circuits (continued)
V
DD
20W Stereo Class D Speaker Amplifier
V
= 29.5dB, f
20kΩ
20kΩ
R
R
F
F
Chip Information
SCLK/PWM 9
1μF
SDA/VOL 8
-3dB
ADDR1 13
ADDR2 14
MUTE 24
SHDN 22
SYNC
N.C.
FBR 18
FBL 17
= 17Hz, SPREAD-SPECTRUM MODE, MUTE OFF, SLAVE ADDRESS = 1001011_)
INR 19
INL 16
25
23
MAX9744
MODULATION
SHUTDOWN
CONTROL
CONTROL
6, 10, 21, 28
OUTPUT
ANALOG
3V TO 3.6V
MUTE
I
BIAS
2
C
V
DD
ANALOG MODE
CONTROL
VOLUME
For the latest package outline information, go to
www.maxim-ic.com/packages.
7, 11, 12,
15, 27
PACKAGE TYPE
OSCILLATOR
is a registered trademark of Maxim Integrated Products, Inc.
GND
44 TQFN-EP
with Volume Control
34, 35, 39, 43, 44
4.5V TO 14V
PV
BIAS
DD
PVDD
4, 5, 29, 30
PGND
PACKAGE CODE
Package Information
41, 42
31, 32
36, 37
2, 3
T4477-3
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
DOCUMENT NO.
C
2.2μF
100μF
BIAS
21-0144