MAX9790AETJ+ Maxim Integrated Products, MAX9790AETJ+ Datasheet - Page 21
![IC AMP AUDIO 2W STER AB 32TQFN](/photos/6/50/65019/32-tqfn_21-0140l_sml.jpg)
MAX9790AETJ+
Manufacturer Part Number
MAX9790AETJ+
Description
IC AMP AUDIO 2W STER AB 32TQFN
Manufacturer
Maxim Integrated Products
Series
DirectDrive™r
Type
Class ABr
Specifications of MAX9790AETJ+
Output Type
2-Channel (Stereo) with Stereo Headphones
Max Output Power X Channels @ Load
2W x 2 @ 4 Ohm; 100mW x 2 @ 16 Ohm
Voltage - Supply
4.5 V ~ 5.5 V
Features
Depop, Mute, Short-Circuit and Thermal Protection, Shutdown
Mounting Type
Surface Mount
Package / Case
32-TQFN Exposed Pad
For Use With
MAX9789AEVKIT+ - EVALUATION KIT FOR MAX9789A
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Windows Vista-Compliant, Stereo Class AB Speaker
LOGIC PINS CONFIGURED FOR:
SPKR_EN = 0, SPEAKER AMPLIFIERS ENABLED
HP_EN = 1, HEADPHONE AMPLIFIER ENABLED
MUTE = 1, MUTE DISABLED
GAIN1 = 0 GAIN = 0, 6dB SPEAKER GAIN
Amplifiers and DirectDrive Headphone Amplifiers
3V TO 5.5V
1.0μF
1.0μF
1.0μF
1.0μF
______________________________________________________________________________________
SPKR_INR
SPKR_INL
SPKR_EN 23
HP_INL 27
HP_INR 26
HP_EN 22
GAIN2 32
GAIN1 31
MUTE 25
2
3
4, 28
CONTROL
GND
0.1μF
AMPLIFIER
5, 21
STEREO
BTL
PGND
MAX9790A
4.5V TO 5.5V
30
V
DD
8, 18
PV
TO HPV
PV
14
DD
CHARGE
PUMP
SS
C2
1.0μF
Block Diagrams (continued)
TO PV
DD
SS
CPV
13
0.1μF
SS
17
20
19
24
16
15
10
11
12
6
7
9
OUTL+
BIAS
HPL
HPR
HPV
CPGND
OUTL-
OUTR+
OUTR-
CPV
C1P
C1N
DD
DD
1.0μF
C1
1μF
3V TO 5.5V
C3
10μF
21