MAX9709 Maxim Integrated Products, MAX9709 Datasheet - Page 7

• Manufacturer Part Number: MAX9709
• Description: 25W/50W Filterless Spread-Spectrum Stereo/Mono Class D Amplifier
• Manufacturer: Maxim Integrated Products

(PV
= low, MUTE = high, G1 = low, G2 = high, FS1 = FS2 = high (SSM), SYNCIN = low. All load resistors (R
OUT_-, T
DD
100
30
25
20
15
10
90
80
70
60
50
40
30
20
10
5
0
0
= V
7
0
OUTPUT POWER vs. LOAD RESISTANCE
A
R
DD
LOAD
EFFICIENCY vs. OUTPUT POWER
= +25°C, unless otherwise stated.)
8
10
= +20V, PGND = GND = 0V, C
= 4Ω
9
LOAD RESISTANCE (Ω)
(STEREO MODE)
OUTPUT POWER (W)
10
20
(MONO MODE)
_______________________________________________________________________________________
11
30
12
25W/50W, Filterless, Spread-Spectrum,
13
40
THD+N = 10%
f
IN
= 1kHz
14
50
15
16
60
SS
Stereo/Mono, Class D Amplifier
= 0.47µF, C
70
60
50
40
30
20
10
Typical Operating Characteristics (continued)
0
10
OUTPUT POWER vs. SUPPLY VOLTAGE
R
f
IN
LOAD
= 1kHz
12
= 4Ω
THD+N = 10%
REG
14
SUPPLY VOLTAGE (V)
MUTE RESPONSE
(MONO MODE)
= 0.01µF, C1 = 0.1µF, C2 = 1µF, R
16
40ms/div
18
THD+N = 1%
20
MAX9709 toc19
22
24
MUTE
5V/div
OUTPUT
50mV/div
60
50
40
30
20
10
0
4
OUTPUT POWER vs. LOAD RESISTANCE
LOAD
SHUTDOWN RESPONSE
= 8Ω, SHDN = high, MONO
L
6
) are between OUT_+ and
LOAD RESISTANCE (Ω)
www.DataSheet4U.com
(MONO MODE)
40ms/div
8
THD+N = 10%
f
IN
10
= 1kHz
MAX9709 toc20
12
OUTPUT
50mV/div
7
SHDN
5V/div