Datasheet

MAX9705
0
-140
0 100 1000
WIDEBAND OUTPUT SPECTRUM
FIXED-FREQUENCY MODE
-80
-100
-20
-60
-120
-40
MAX9705 toc26
FREQUENCY (MHz)
AMPLITUDE (dBV)
10
R
L
= 8Ω
V
DD
= 5.0V
INPUTS AC GROUNDED
0
-140
0 100 1000
WIDEBAND OUTPUT SPECTRUM
SPREAD-SPECTRUM MODE
-80
-100
-20
-60
-120
-40
MAX9705 toc27
FREQUENCY (MHz)
AMPLITUDE (dBV)
10
R
L
= 8
Ω
V
DD
= 5.0V
INPUTS AC GROUNDED
2.3W, Ultra-Low-EMI, Filterless,
Class D Audio Amplifier
_______________________________________________________________________________________ 7
4
5
6
7
8
9
10
2.5 3.5 4.5 5.5
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX9705 toc28
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
SYNC = V
DD
(SSM)
SYNC = GND (FFM)
NO LOAD
INPUTS AC GROUNDED
5.00
5.25
5.50
5.75
6.25
6.00
6.50
6.75
7.00
-40 -15 10 35 60 85
SUPPLY CURRENT
vs. TEMPERATURE
MAX9705 toc29
TEMPERATURE (
°
C)
SUPPLY CURRENT (mA)
SYNC = V
DD
(SSM)
SYNC = GND (FFM))
V
DD
= 3.3V
NO LOAD
INPUTS AC GROUNDED
0
0.10
0.20
0.30
0.50
0.40
0.60
0.80
0.70
0.90
1.00
2.5 3.0 3.5 4.0 4.5 5.0 5.5
SHUTDOWN CURRENT
vs. SUPPLY VOLTAGE
MAX9705 toc30
SUPPLY VOLTAGE (V)
SHUTDOWN CURRENT (µA)
T
A
= +25°C
T
A
= +85°C
T
A
= -40°C
NO LOAD
INPUTS AC GROUNDED
SHDN = GND
TURN-ON/TURN-OFF RESPONSE
MAX9705 toc31
MAX9705
OUTPUT
SHDN
0V
250mV/div
3V
10ms/div
f = 1kHz
R
L
= 8Ω
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.)