max9777etit Maxim Integrated Products, Inc., max9777etit Datasheet - Page 5

• Manufacturer Part Number: max9777etit
• Description: Max9777, Max9778 Stereo 3w Audio Power Amplifiers With Headphone Drive And Input Mux
• Manufacturer: Maxim Integrated Products, Inc.

(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