MAX9744ETH+T Maxim Integrated Products, MAX9744ETH+T Datasheet - Page 25

• Manufacturer Part Number: MAX9744ETH+T
• Description: IC AMP AUDIO PWR 22.5W D 44TQFN
• Manufacturer: Maxim Integrated Products
• Type: Class Dr

Specifications of MAX9744ETH+T

• Output Type: 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 22.5W x 2 @ 4 Ohm
• Voltage - Supply: 4.5 V ~ 14 V
• Features: Depop, Mute, Short-Circuit and Thermal Protection, Shutdown, Volume Control
• Mounting Type: Surface Mount
• Package / Case: 44-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(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
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
7, 11, 12,
15, 27
OSCILLATOR
GND
with Volume Control
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
25