MAX9705 Maxim Integrated Products, MAX9705 Datasheet - Page 7

• Manufacturer Part Number: MAX9705
• Description: 2.3W Ultra-Low-EMI Filterless Class D Audio Amplifier
• Manufacturer: Maxim Integrated Products

(V
load condition apply to the MAX9705_ETB+T only.)
DD
= 3.3V, SYNC = V
-100
-120
-140
-20
-40
-60
-80
1.00
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
10
0
9
8
7
6
5
4
0
2.5
2.5
0
_______________________________________________________________________________________
NO LOAD
INPUTS AC GROUNDED
SHDN = GND
R
V
INPUTS AC GROUNDED
L
DD
WIDEBAND OUTPUT SPECTRUM
DD
= 8Ω
3.0
= 5.0V
T
FIXED-FREQUENCY MODE
A
(SSM), differential input, T
vs. SUPPLY VOLTAGE
SHUTDOWN CURRENT
= +85°C
vs. SUPPLY VOLTAGE
SUPPLY CURRENT
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
3.5
3.5
FREQUENCY (MHz)
10
4.0
NO LOAD
INPUTS AC GROUNDED
SYNC = V
SYNC = GND (FFM)
100
4.5
4.5
T
DD
A
T
A
= -40°C
(SSM)
= +25°C
2.3W, Ultra-Low-EMI, Filterless,
5.0
Typical Operating Characteristics (continued)
1000
5.5
5.5
A
= +25°C, unless otherwise noted. Typical Operating Characteristics for 4Ω
Class D Audio Amplifier
MAX9705
OUTPUT
-100
-120
-140
SHDN
-20
-40
-60
-80
7.00
6.75
6.50
6.25
6.00
5.75
5.50
5.25
5.00
0
-40
0
f = 1kHz
R
L
V
NO LOAD
INPUTS AC GROUNDED
R
V
INPUTS AC GROUNDED
DD
= 8Ω
L
DD
WIDEBAND OUTPUT SPECTRUM
TURN-ON/TURN-OFF RESPONSE
= 8Ω
= 3.3V
= 5.0V
SPREAD-SPECTRUM MODE
-15
vs. TEMPERATURE
SUPPLY CURRENT
SYNC = GND (FFM))
TEMPERATURE (°C)
SYNC = V
FREQUENCY (MHz)
10
10
10ms/div
DD
(SSM)
35
100
60
MAX9705 toc31
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1000
85
3V
0V
250mV/div
7