max9708etntd Maxim Integrated Products, Inc., max9708etntd Datasheet - Page 7

• Manufacturer Part Number: max9708etntd
• Description: Max9708 20w/40w, Filterless, Spread-spectrum, Mono/stereo, Class D Amplifier
• Manufacturer: Maxim Integrated Products, Inc.

(PV
= low, MUTE = high, G1 = low, G2 = high, FS1 = FS2 = high (SSM), SYNCIN = low. All load resistors (R
OUT_-, T
DD
100
90
80
70
60
50
40
30
20
10
30
25
20
15
10
5
0
= V
0
7
A
DD
EFFICIENCY vs. OUTPUT POWER
= +25°C, unless otherwise stated.)
10
= +18V, PGND = GND = 0V, C
8
vs. LOAD RESISTANCE
LOAD RESISTANCE (Ω)
OUTPUT POWER (W)
OUTPUT POWER
20
9
_______________________________________________________________________________________
30
20W/40W, Filterless, Spread-Spectrum,
10
PV
4Ω MONO MODE
40
STEREO MODE,
10% THD+N,
PV
DD
DD
= 18V,
= 18V
11
50
60
12
SS
Mono/Stereo, Class D Amplifier
= 0.47µF, C
Typical Operating Characteristics (continued)
60
50
40
30
20
10
0
10
R
MONO MODE,
10% THD+N
L
= 4Ω,
vs. SUPPLY VOLTAGE
REG
12
SUPPLY VOLTAGE (V)
OUTPUT POWER
MUTE RESPONSE
= 0.01µF, C1 = 0.1µF, C2 = 1µF, R
40ms/div
14
16
MAX9708 toc19
18
MUTE
5V/div
OUTPUT
50mV/div
60
50
40
30
20
10
0
4
LOAD
MONO MODE,
10% THD+N,
PV
DD
L
= 18V
) are between OUT_+ and
= ∞, SHDN = high, MONO
vs. LOAD RESISTANCE
SHUTDOWN RESPONSE
6
LOAD RESISTANCE (Ω)
OUTPUT POWER
40ms/div
8
10
MAX9708 toc20
12
7
SHDN
5V/div
OUTPUT
50mV/div