MAX9777ETI+T Maxim Integrated Products, MAX9777ETI+T Datasheet - Page 5
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MAX9777ETI+T
Manufacturer Part Number
MAX9777ETI+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 MAX9777ETI+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, 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
(V
0.001
0.001
0.001
DD
0.01
0.01
0.01
100
0.1
0.1
0.1
10
1
1
1
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
= PV
10
10
0
vs. OUTPUT POWER (SPEAKER MODE)
P
P
A
R
P
OUT
OUT
V
L
vs. FREQUENCY (SPEAKER MODE)
vs. FREQUENCY (SPEAKER MODE)
OUT
P
= 2V/V
= 3Ω
DD
OUT
= 250mW
= 500mW
= 2W
= 5V, GND = PGND = 0V, V
= 1W
f = 1kHz
100
100
f = 20Hz
1
OUTPUT POWER (W)
FREQUENCY (Hz)
FREQUENCY (Hz)
P
OUT
P
P
OUT
OUT
_______________________________________________________________________________________
P
f = 10kHz
= 2.5W
OUT
1k
= 500mW
1k
2
= 1W
Stereo 3W Audio Power Amplifiers with
= 2W
10k
10k
3
R
A
R
A
L
V
L
V
= 4Ω
= 4V/V
= 3Ω
= 2V/V
100k
100k
4
SHDN
Headphone Drive and Input Mux
0.001
0.001
0.001
= 5V, C
0.01
0.01
0.01
100
0.1
0.1
0.1
10
1
1
1
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
10
10
0
vs. OUTPUT POWER (SPEAKER MODE)
P
A
R
P
f = 20Hz
OUT
vs. FREQUENCY (SPEAKER MODE)
V
L
vs. FREQUENCY (SPEAKER MODE)
OUT
BIAS
= 4V/V
= 3Ω
P
OUT
= 500mW P
P
= 250mW
OUT
100
100
= 2W
f = 1kHz
= 1µF, T
1
= 1W
OUTPUT POWER (W)
FREQUENCY (Hz)
FREQUENCY (Hz)
f = 10kHz
P
OUT
OUT
P
OUT
P
1k
OUT
1k
A
2
= 1W
= 500mW
= 1.2W
= +25°C, unless otherwise noted.)
= 2.5W
Typical Operating Characteristics
10k
10k
3
R
A
R
A
L
V
L
V
= 3Ω
= 4V/V
= 8Ω
= 2V/V
100k
100k
4
0.001
0.001
0.001
0.01
0.01
0.01
100
0.1
0.1
0.1
10
1
1
1
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
10
10
0
vs. OUTPUT POWER (SPEAKER MODE)
P
A
R
P
OUT
V
L
vs. FREQUENCY (SPEAKER MODE)
vs. FREQUENCY (SPEAKER MODE)
OUT
P
= 4Ω
= 2V/V
OUT
P
0.5
OUT
= 250mW
= 250mW
= 1W
f = 1kHz
100
100
= 1W
1.0
OUTPUT POWER (W)
f = 20Hz
FREQUENCY (Hz)
FREQUENCY (Hz)
P
P
1.5
OUT
OUT
P
OUT
P
f = 10kHz
1k
1k
= 500mW
OUT
= 500mW
= 1.2W
2.0
= 2W
2.5
10k
10k
R
A
R
A
L
V
L
V
= 4Ω
= 2V/V
= 8Ω
= 4V/V
3.0
100k
100k
3.5
5