max9770euit Maxim Integrated Products, Inc., max9770euit Datasheet - Page 5

• Manufacturer Part Number: max9770euit
• Description: 1.2w Low-emi, Filterless, Mono Class D Amplifier With Stereo Directdrive Headphone Amplifiers
• Manufacturer: Maxim Integrated Products, Inc.

(MAX9770 V
otherwise noted.)
0.001
0.001
0.01
1.2W, Low-EMI, Filterless, Mono Class D Amplifier
0.001
0.01
0.1
0.01
0.1
10
100
10
0.1
1
10
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)
R
V
R
vs. FREQUENCY (SPEAKER MODE)
V
P
R
vs. FREQUENCY (SPEAKER MODE)
L
DD
L
DD
OUT
L
with Stereo DirectDrive Headphone Amplifiers
P
= 8Ω
= 4Ω
= 8Ω
DD
OUT
= +5V
= 5V
f = 20Hz
= 1W
P
FFM MODE
SSM MODE
OUT
100
= 25mW
200
100
= 3.3V, BW = 22Hz to 22kHz, GAIN1 = 1, GAIN2 = 0, spread-spectrum mode, headphone outputs in phase, unless
OUTPUT POWER (mW)
= 1000mW
FREQUENCY (Hz)
FREQUENCY (Hz)
_______________________________________________________________________________________
f = 1kHz
1k
400
1k
f = 10kHz
10k
600
10k
800
100k
100k
0.001
0.001
0.01
0.01
100
0.1
0.01
0.1
10
100
10
0.1
1
10
1
TOTAL HARMONIC DISTORTION PLUS NOISE
1
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
0
10
0
vs. OUTPUT POWER (SPEAKER MODE)
vs. OUTPUT POWER (SPEAKER MODE)
V
R
R
vs. FREQUENCY (SPEAKER MODE)
DD
L
L
= 8Ω
= 4Ω
= 5V
P
200
f = 20Hz
OUT
P
400
100
OUT
= 100mW
OUTPUT POWER (mW)
OUTPUT POWER (mW)
f
IN
= 500mW
FREQUENCY (Hz)
= 20Hz
MAX9772
400
800
1k
f = 1kHz
Typical Operating Characteristics
600
f
IN
f = 10kHz
1200
f
IN
= 10kHz
10k
800
= 1kHz
R
L
= 8Ω
1600
1000
100k
0.001
0.001
0.001
0.01
0.01
100
0.01
0.1
100
0.1
10
0.1
10
10
1
1
1
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
0
0
10
vs. OUTPUT POWER (SPEAKER MODE)
vs. OUTPUT POWER (SPEAKER MODE)
V
f = 1kHz
R
R
DD
L
R
L
vs. FREQUENCY (SPEAKER MODE)
= 8Ω
L
= 4Ω
= 5V
f = 20Hz
= 8Ω
P
200
OUT
400
P
OUT
100
OUTPUT POWER (mW)
= 40mW
OUTPUT POWER (mW)
= 400mW
FREQUENCY (Hz)
400
SSM MODE
800
1k
f = 1kHz
FFM MODE
600
1200
f = 10kHz
10k
800
1600
1000
100k
5