MAX9709ETN+D Maxim Integrated Products, MAX9709ETN+D Datasheet - Page 18

• Manufacturer Part Number: MAX9709ETN+D
• Description: IC AMP AUDIO PWR 50W STER 56TQFN
• Manufacturer: Maxim Integrated Products
• Type: Class Dr

Specifications of MAX9709ETN+D

• Output Type: 1-Channel (Mono) or 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 50W x 1 @ 4 Ohm; 29W x 2 @ 8 Ohm
• Voltage - Supply: 10 V ~ 22 V
• Features: Depop, Differential Inputs, Mute, Short-Circuit and Thermal Protection, Shutdown
• Mounting Type: Surface Mount
• Package / Case: 56-TQFN
• Product: Class-D
• Output Power: 29 W
• Common Mode Rejection Ratio (min): 70 dB
• Thd Plus Noise: 0.1 %
• Operating Supply Voltage: 10 V to 22 V
• Supply Current: 20 mA
• Maximum Power Dissipation: 3.81 W
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Supply Voltage (max): 22 V
• Supply Voltage (min): 10 V
• Amplifier Class: D
• No. Of Channels: 1
• Supply Voltage Range: 10V To 22V
• Load Impedance: 4ohm
• Operating Temperature Range: -40°C To +85°C
• Amplifier Case Style: TQFN
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

25W/50W, Filterless, Spread-Spectrum,
Stereo/Mono, Class D Amplifier
Figure 6. Fully Differential Crossover Filters
18
______________________________________________________________________________________
AUDIO
NOTE:
OP AMP POWER PINS OMITTED FOR CLARITY.
ALL RESISTORS ARE 1% OR BETTER.
ALL CAPACITORS ARE 5% OR BETTER.
INPUT
AUDIO
RIGHT
INPUT
LEFT
26.1kΩ
26.1kΩ
26.1kΩ
28kΩ
28kΩ
28kΩ
28kΩ
28kΩ
R10
R14
R15
R17
R19
R21
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
R1
R5
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
C9, 47nF
U1C
U1D
U2A
U2B
U1A
U1B
8
14
1
7
1
7
RIGHT AND LEFT OUTPUTS
ARE AC-COUPLED TO A
MAX9709 CONFIGURED AS
A STEREO AMPLIFIER
LEFT
AUDIO
OUTPUT
SUBWOOFER OUTPUT IS
AC-COUPLED TO A
MAX9709 CONFIGURED AS
A MONO AMPLIFIER
SUBWOOFER
AUDIO
OUTPUT
RIGHT
AUDIO
OUTPUT