max9708etntd Maxim Integrated Products, Inc., max9708etntd Datasheet - Page 18

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

20W/40W, Filterless, Spread-Spectrum,
Mono/Stereo, Class D Amplifier
Figure 6. Fully Differential Crossover Filters
18
______________________________________________________________________________________
AUDIO
INPUT
NOTE:
OP-AMP POWER PINS OMITTED FOR CLARITY.
ALL RESISTORS ARE 1% OR BETTER.
ALL CAPACITORS ARE 5% OR BETTER.
AUDIO
RIGHT
INPUT
LEFT
26.1kΩ
26.1kΩ
26.1kΩ
28kΩ
28kΩ
28kΩ
28kΩ
28kΩ
R10
R14
R17
R21
R15
R19
R3
R7
47nF
47nF
47nF
47nF
C7
C5
C1
C3
28kΩ
28kΩ
R11
C10
47nF
R4
7.5kΩ
7.5kΩ
R18
R22
47nF
47nF
47nF
47nF
C6
C8
C2
C4
56.2kΩ
56.2kΩ
56.2kΩ
56.2kΩ
13kΩ
13kΩ
R12
R16
R20
R8
R5
R1
BIAS
BIAS
BIAS
BIAS
BIAS
BIAS
10
13
12
9
2
3
6
5
2
3
6
5
R13, 56.2kΩ
R9, 56.2kΩ
R2, 56.2kΩ
R6, 56.2kΩ
MAX4478
MAX4478
MAX4478
MAX4478
MAX4478
MAX4478
C11, 47nF
U1C
C9, 47nF
U1D
U2A
U2B
U1A
U1B
8
14
1
7
1
7
RIGHT AND LEFT OUTPUTS
ARE AC-COUPLED TO A
MAX9708 CONFIGURED AS
A STEREO AMPLIFIER
LEFT
AUDIO
OUTPUT
SUBWOOFER OUTPUT IS
AC-COUPLED TO A
MAX9708 CONFIGURED AS
A MONO AMPLIFIER
SUBWOOFER
AUDIO
OUTPUT
RIGHT
AUDIO
OUTPUT