MAX9778ETI+T Maxim Integrated Products, MAX9778ETI+T Datasheet - Page 22
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MAX9778ETI+T
Manufacturer Part Number
MAX9778ETI+T
Description
IC AMP AUDIO PWR 2.6W AB 28TQFN
Manufacturer
Maxim Integrated Products
Type
Class ABr
Datasheet
1.MAX9777ETIT.pdf
(27 pages)
Specifications of MAX9778ETI+T
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, 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