MAX9777ETI+ Maxim Integrated Products, MAX9777ETI+ Datasheet - Page 22

• Manufacturer Part Number: MAX9777ETI+
• Description: IC AMP AUDIO PWR 2.6W AB 28TQFN
• Manufacturer: Maxim Integrated Products
• Type: Class ABr

Specifications of MAX9777ETI+

• Output Type: 2-Channel (Stereo) with Stereo Headphones
• Max Output Power X Channels @ Load: 2.6W x 2 @ 4 Ohm; 200mW x 2 @ 16 Ohm
• Voltage - Supply: 4.5 V ~ 5.5 V
• Features: Depop, I²C, Input Multiplexer, Mute, Shutdown, Thermal Protection
• Mounting Type: Surface Mount
• Package / Case: 28-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Stereo 3W Audio Power Amplifiers with
Headphone Drive and Input Mux
22
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
MICROCONTROLLER
CODEC
HPF
HPF
1µF
0.68µF
0.68µF
0.68µF
0.68µF
0.1µF
15kΩ
15kΩ
15kΩ
15kΩ
17
19
20
15
28
14
5
6
1
2
4.5V TO 5.5V
BIAS
INL1
INL2
INR1
INR2
IN1/2
MUTE
GAINA/B
HPS_EN
SHDN
3, 4
18
GND
V
MAX9778
DD
PV
PGND
GAINRA
GAINRB
GAINLB
GAINLA
OUTR+
OUTL+
Typical Application Circuits (continued)
OUTL-
OUTR-
DD
11, 25
9, 13, 23, 27
HPS
8
7
10
12
26
24
21
22
16
0.047µF
0.047µF
100µF
27.4kΩ
33.2kΩ
33.2kΩ
27.4kΩ
15kΩ
15kΩ
47kΩ
220µF
220µF
10kΩ
4.5V TO 5.5V
10kΩ
680kΩ