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MAX9705BETB+T

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18
100
0 0.5 1.0 1.5
10
1
0.1
0.01
0.001
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
MAX9705toc04
OUTPUT POWER (W)
THD+N (%)
V
DD
= 3.3V
R
L
= 4Ω
f
IN
= 1kHz
100
0 0.40.2 0.80.6 1.0 1.2
10
1
0.1
0.01
0.001
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
MAX9705toc06
OUTPUT POWER (W)
THD+N (%)
V
DD
= 3.3V
R
L
= 8Ω
f
IN
= 1kHz
FFM
SSM
100
0.01
10 100 10k 100k
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
0.1
1
10
MAX9705toc07
FREQUENCY (Hz)
THD+N (%)
1k
V
DD
= 3.3V
R
L
= 8Ω
P
OUT
= 100mW
P
OUT
= 450mW
100
0.01
10 100 10k 100k
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
0.1
1
10
MAX9705toc08
FREQUENCY (Hz)
THD+N (%)
1k
V
DD
= 5.0V
R
L
= 8Ω
P
OUT
= 250mW
P
OUT
= 1W
100
0.01
10 100 10k 100k
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
0.1
1
10
MAX9705toc09
FREQUENCY (Hz)
THD+N (%)
1k
V
DD
= 2.5V
R
L
= 4
Ω
P
OUT
= 50mW
P
OUT
= 300mW
MAX9705
2.3W, Ultra-Low-EMI, Filterless,
Class D Audio Amplifier
4 _______________________________________________________________________________________
Typical Operating Characteristics
(V
DD
= 3.3V, SYNC = V
DD
(SSM), differential input, T
A
= +25°C, unless otherwise noted.
Typical Operating Characteristics
for 4Ω
load condition apply to the MAX9705_ETB+T only.)
100
0 0.4 0.8 1.00.2 0.6 1.2
10
1
0.1
0.01
0.001
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
MAX9705toc01
OUTPUT POWER (W)
THD+N (%)
f
IN
= 1kHz
V
DD
= 3.3V
R
L
= 8
Ω
100
0 0.5 1.0 1.5 2.0
10
1
0.1
0.01
0.001
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
MAX9705toc02
OUTPUT POWER (W)
THD+N (%)
f
IN
= 1kHz
V
DD
= 5.0V
R
L
= 8
Ω
100
0 0.2 0.4 0.6 0.8
10
1
0.1
0.01
0.001
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
MAX9705toc03
OUTPUT POWER (W)
THD+N (%)
f
IN
= 1kHz
V
DD
= 2.5V
R
L
= 4
Ω
MAX9705
Typical Operating Characteristics (continued)
(V
DD
= 3.3V, SYNC = V
DD
(SSM), differential input, T
A
= +25°C, unless otherwise noted.
Typical Operating Characteristics
for 4Ω
load condition apply to the MAX9705_ETB+T only.)
100
0.01
10 100 10k 100k
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
0.1
1
10
MAX9705toc10
FREQUENCY (Hz)
THD+N (%)
1k
V
DD
= 3.3V
R
L
= 4
Ω
P
OUT
= 100mW
P
OUT
= 800mW
100
0.01
10 100 10k 100k
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
0.1
1
10
MAX9705toc11
FREQUENCY (Hz)
THD+N (%)
1k
V
DD
= 5.0V
R
L
= 4
Ω
P
OUT
= 250mW
P
OUT
= 1.75W
100
0.01
10 100 10k 100k
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
0.1
1
10
MAX9705toc12
FREQUENCY (Hz)
THD+N (%)
1k
V
DD
= 3.3V
R
L
= 8
Ω
P
OUT
= 450mW
FFM
SSM
2.3W, Ultra-Low-EMI, Filterless,
Class D Audio Amplifier
_______________________________________________________________________________________ 5
100
0 0.5 1.51.0 2.0 2.5
10
1
0.1
0.01
0.001
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. COMMON-MODE VOLTAGE
MAX9705toc13
COMMON-MODE VOLTAGE (V)
THD+N (%)
V
DD
= 3.3V to 5V
f
IN
= 1kHz
P
OUT
= 500mW
GAIN = 6dB
R
L
= 8
Ω
0
30
20
10
40
50
60
70
80
90
100
0 0.40.2 0.6 0.8 1.0
EFFICIENCY
vs. OUTPUT POWER
MAX9705toc14
OUTPUT POWER (W)
EFFICIENCY (%)
V
DD
= 3.3V
f
IN
= 1kHz
R
L
= 8
Ω
R
L
= 4
Ω
0
30
20
10
40
50
60
70
80
90
100
0 1.00.5 1.5 2.0 2.5 3.0
EFFICIENCY
vs. OUTPUT POWER
MAX9705toc15
OUTPUT POWER (W)
EFFICIENCY (%)
V
DD
= 5.0V
f
IN
= 1kHz
R
L
= 8
Ω
R
L
= 4
Ω
0
30
20
10
40
50
60
70
80
90
100
2.5 3.53.0 4.0 4.5 5.0 5.5
EFFICIENCY
vs. SUPPLY VOLTAGE
MAX9705toc16
SUPPLY VOLTAGE (V)
EFFICIENCY (%)
f
IN
= 1kHz
THD+N = 1%
R
L
= 8
Ω
R
L
= 4
Ω
0
30
20
10
40
50
60
70
80
90
100
800 12001000 1400 1600 1800 2000
EFFICIENCY
vs. SYNC FREQUENCY
MAX9705toc17
SYNC FREQUENCY (kHz)
EFFICIENCY (%)
V
DD
= 3.3V
f
IN
= 1kHz
THD+N = 1%
R
L
= 8
Ω
R
L
= 4
Ω
0
30
20
10
40
50
60
70
80
90
100
800 12001000 1400 1600 1800 2000
EFFICIENCY
vs. SYNC FREQUENCY
MAX9705toc18
SYNC FREQUENCY (kHz)
EFFICIENCY (%)
V
DD
= 5.0V
f
IN
= 1kHz
THD+N = 1%
R
L
= 8
Ω
R
L
= 4
Ω
-140
-120
-100
-80
-60
-40
-20
0
20
0 5 10 15 20
SPREAD-SPECTRUM-MODE OUTPUT
SPECTRUM vs. FREQUENCY
MAX9705 toc25
FREQUENCY (kHz)
AMPLITUDE (dBV)
R
L
= 8
Ω
V
DD
= 5.0V
f
IN
= 1kHz
A-WEIGHTED
MAX9705
2.3W, Ultra-Low-EMI, Filterless,
Class D Audio Amplifier
6 _______________________________________________________________________________________
0
0.6
0.4
0.2
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.5 3.53.0 4.0 4.5 5.0 5.5
OUTPUT POWER
vs. SUPPLY VOLTAGE
MAX9705toc19
SUPPLY VOLTAGE (V)
OUTPUT POWER (W)
f
IN
= 1kHz
R
L
= 8
Ω
THD+N = 1%
THD+N = 10%
0
1.5
1.0
0.5
2.0
2.5
3.0
3.5
2.5 3.53.0 4.0 4.5 5.0 5.5
OUTPUT POWER
vs. SUPPLY VOLTAGE
MAX9705toc20
SUPPLY VOLTAGE (V)
OUTPUT POWER (W)
f
IN
= 1kHz
R
L
= 4
Ω
THD+N = 1%
THD+N = 10%
4.0
0
1 100 1000
OUTPUT POWER
vs. LOAD RESISTANCE
1.5
1.0
3.0
2.0
3.5
0.5
2.5
MAX9705 toc21
LOAD RESISTANCE (
Ω
)
OUTPUT POWER (W)
10
f
IN
= 1kHz
Z
LOAD
= 33
µ
H IN
SERIES WITH R
L
THD+N = 1%
3.3V
5.0V
0
-10
-100
10 100 10k 100k
POWER-SUPPLY REJECTION
RATIO vs. FREQUENCY
-90
-50
-70
-80
-40
-60
-20
-30
MAX9705 toc22
FREQUENCY (Hz)
PSRR (dB)
1k
V
DD
= 3.3V
V
IN
= 200mV
P-P
R
L
= 8
Ω
-140
-120
-100
-80
-60
-40
-20
0
20
0 5 10 15 20
FIXED-FREQUENCY-MODE OUTPUT
SPECTRUM vs. FREQUENCY
MAX9705 toc23
FREQUENCY (kHz)
AMPLITUDE (dBV)
R
L
= 8
Ω
V
DD
= 5.0V
f
IN
= 1kHz
BW = 22Hz to 22kHz
-140
-120
-100
-80
-60
-40
-20
0
20
0 5 10 15 20
SPREAD-SPECTRUM-MODE OUTPUT
SPECTRUM vs. FREQUENCY
MAX9705 toc24
FREQUENCY (kHz)
AMPLITUDE (dBV)
R
L
= 8Ω
V
DD
= 5.0V
f
IN
= 1kHz
BW = 22Hz to 22kHz
Typical Operating Characteristics (continued)
(V
DD
= 3.3V, SYNC = V
DD
(SSM), differential input, T
A
= +25°C, unless otherwise noted.
Typical Operating Characteristics
for 4Ω
load condition apply to the MAX9705_ETB+T only.)
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18

MAX9705BETB+T

Mfr. #:
Buy MAX9705BETB+T
Manufacturer:
Maxim Integrated
Description:
Audio Amplifiers 2.3W Ultra-Low-EMI Class D Amplifier
Lifecycle:
New from this manufacturer.
Delivery:
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