MAX9705AETB/V+T Maxim Integrated, MAX9705AETB/V+T Datasheet - Page 5

• Manufacturer Part Number: MAX9705AETB/V+T
• Description: Audio Amplifiers 2.3W Ultra-Low-EMI Filterless Class D Audio Amplifier
• Manufacturer: Maxim Integrated

Specifications of MAX9705AETB/V+T

• Product: Class-D
• Output Power: 950 mW
• Thd Plus Noise: 0.02 %
• Supply Current: 5.4 mA
• Maximum Power Dissipation: 1951.2 mW
• Audio Load Resistance: 4 Ohms
• Common Mode Rejection Ratio (min): 56 dB

(V
load condition apply to the MAX9705_ETB+T only.)
DD
0.001
0.01
100
0.1
0.01
10
100
100
0.1
10
= 3.3V, SYNC = V
1
90
80
70
60
50
40
30
20
10
1
0
2.5
10
0
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. COMMON-MODE VOLTAGE
V
f
P
GAIN = 6dB
R
V
R
IN
DD
OUT
L
DD
L
= 1kHz
= 8Ω
TOTAL HARMONIC DISTORTION
= 4Ω
= 3.3V to 5V
PLUS NOISE vs. FREQUENCY
= 3.3V
3.0
= 500mW
0.5
COMMON-MODE VOLTAGE (V)
100
vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
3.5
FREQUENCY (Hz)
P
EFFICIENCY
1.0
_______________________________________________________________________________________
OUT
R
R
L
L
DD
= 800mW
= 8Ω
= 4Ω
1k
4.0
P
OUT
(SSM), differential input, T
1.5
= 100mW
4.5
10k
f
THD+N = 1%
IN
2.0
= 1kHz
5.0
2.5
100k
5.5
2.3W, Ultra-Low-EMI, Filterless,
0.01
100
Typical Operating Characteristics (continued)
0.1
10
100
100
1
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
800
A
10
0
= +25°C, unless otherwise noted. Typical Operating Characteristics for 4Ω
V
R
DD
L
TOTAL HARMONIC DISTORTION
= 4Ω
1000
PLUS NOISE vs. FREQUENCY
= 5.0V
0.2
R
100
R
vs. SYNC FREQUENCY
L
vs. OUTPUT POWER
L
SYNC FREQUENCY (kHz)
= 8Ω
= 4Ω
P
1200
OUTPUT POWER (W)
OUT
FREQUENCY (Hz)
EFFICIENCY
EFFICIENCY
0.4
= 1.75W
R
R
Class D Audio Amplifier
L
L
1400
1k
= 4Ω
= 8Ω
P
OUT
0.6
1600
= 250mW
10k
V
f
THD+N = 1%
IN
V
f
IN
DD
DD
0.8
1800
= 1kHz
= 1kHz
= 3.3V
= 3.3V
2000
100k
1.0
0.01
100
0.1
100
100
10
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
1
0
0
800
10
0
V
R
P
DD
L
OUT
R
TOTAL HARMONIC DISTORTION
1000
= 8Ω
L
0.5
PLUS NOISE vs. FREQUENCY
= 3.3V
= 8Ω
= 450mW
vs. SYNC FREQUENCY
100
SYNC FREQUENCY (kHz)
vs. OUTPUT POWER
1200
OUTPUT POWER (W)
1.0
FREQUENCY (Hz)
EFFICIENCY
EFFICIENCY
FFM
SSM
R
R
R
L
L
L
1400
= 4Ω
1.5
= 8Ω
1k
= 4Ω
1600
2.0
10k
V
f
THD+N = 1%
IN
V
f
DD
IN
DD
1800
= 1kHz
2.5
= 1kHz
= 5.0V
= 5.0V
2000
100k
3.0
5