MAX9791AETI+T Maxim Integrated Products, MAX9791AETI+T Datasheet - Page 30

• Manufacturer Part Number: MAX9791AETI+T
• Description: IC AMP AUDIO 2.2W STER D 28TQFN
• Manufacturer: Maxim Integrated Products
• Series: DirectDrive™r
• Type: Class Dr

Specifications of MAX9791AETI+T

• Output Type: 2-Channel (Stereo) with Stereo Headphones and Subwoofer
• Max Output Power X Channels @ Load: 2.2W x 2 @ 4 Ohm; 180mW x 2 @ 32 Ohm
• Voltage - Supply: 4.5 V ~ 5.5 V
• Features: Depop, LDO, Short-Circuit and Thermal Protection, Shutdown
• Mounting Type: Surface Mount
• Package / Case: 28-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Windows Vista-Compliant Class D Speaker
Amplifiers with DirectDrive Headphone Amplifiers
30
TO CODEC
______________________________________________________________________________________
NOTE: LOGIC PINS CONFIGURED FOR:
LDO_EN = 1, LDO ENABLED
SPKR_EN = 0, SPEAKER AMPLIFIER ENABLED
HP_EN = 1, HEADPHONE AMPLIFIER ENABLED
1.0µF
µC BEEP INPUT
C
C
C
C
IN1
IN3
IN2
IN2
1.0µF
C
R
2.7V TO 5.5V
R
COM
IN2
RIN1
IN2
R
IN3
R
COM
1.0µF
LDO_OUT 6
SPKR_EN 27
SPKR_IN
LDO_EN 8
HP_INR 2
HP_INL 3
HP_EN 22
BEEP 21
COM
1.0µF
4
28
0.1µF
LDO BLOCK
CONTROL
1, 5
20kΩ
GND
AVDD
7
AMPLIFIER
20, 23
CLASS D
MONO
PGND
PVDD
2.7V TO 5.5V
17, 26
40.2kΩ
0.1µF
MAX9792A Block Diagram
TO HPVDD
40.2kΩ
40.2kΩ
CHARGE
TO HPVDD
PUMP
MAX9792A
TO CPVSS
CPVSS
12
C2
1.0µF
10µF
19, 24
18, 25
10
16
15
14
13
11
9
OUT+
OUT-
HPL
HPR
SENSE
HPVDD
C1P
CPGND
C1N
C1
1.0µF
2.7V TO 5.5V
C3
10µF