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Maxim > Solutions > Flat-Panel and Plasma TVs

Class D Speaker Amplifiers

Maxim's low-EMI, filterless class D architecture delivers the low THD+N and high PSRR of class AB amplifiers. Class D design also minimizes the number of external support components and eliminates the need for costly, bulky heat sinks and external filtering.

DATA SHEETS
Display Title/Parts Key Advantages
QV  PDF Evaluation Kit for the MAX9737
MAX9737EVKIT

QV  PDF Mono 7W Class D Amplifier
MAX9737

Direct-from-Battery 7W Class D Amplifier Slashes Notebook 2.1 Solution Cost
QV  PDF Evaluation Kit/Evaluation System for the MAX9744
MAX9744EVCMAXQU, MAX9744EVKIT

QV  PDF Evaluation Kit for the MAX9736A and MAX9736B
MAX9736AEVKIT

QV  PDF Mono/Stereo High-Power Class D Amplifier
MAX9736

Versatile Pin-for-Pin Compatible Family of Filterless Class D Amplifers Offer Industry-Leading Solution Cost
QV  PDF 20W Stereo Class D Speaker Amplifier with Volume Control
MAX9744

Delivers 2 x 20W from 12V Supply into 4Ω Loads
QV  PDF 10W Mono Class D Speaker Amplifier with Volume Control
MAX9768

High-Efficiency, Low BOM-Cost Class D Amplifier
QV  PDF Single-/Dual-Supply, Stereo 16W, Class D Amplifier with Differential Inputs
MAX9742

High-Efficiency Class D Amplifier Drives 4Ohm Loads with 87% Efficiency, 8Ohm Loads with 92% Efficiency
QV  PDF 12W+12W, Low-EMI, Spread-Spectrum, Stereo, Class D Amplifier
MAX9741

QV  PDF 25W/50W, Filterless, Spread-Spectrum, Stereo/Mono, Class D Amplifier
MAX9709

QV  PDF 20W/40W, Filterless, Spread-Spectrum, Mono/Stereo, Class D Amplifier
MAX9708

QV  PDF 10W Stereo/15W Mono, Filterless, Spread-Spectrum, Class D Amplifiers
MAX9703, MAX9704

10W Stereo/15W Mono Class-D Amplifier Ideal for Flat-Panel TV and PC-Display Applications
QV  PDF 6W, Filterless, Spread-Spectrum Mono/Stereo Class D Amplifiers
MAX9713, MAX9714

6W, Class-D Amplifiers Ideal for Flat-Panel TV and PC Display Applications
QV  PDF 3-Channel, 2.3W, Filterless Class D Amplifiers with Active Crossover
MAX9706, MAX9707

Triple Class D Amplifiers with Integrated Crossover Ideal for 2.1 Audio Systems



Key Specifications:  Speaker Amplifiers
Part Number Class Spkr. Amp. VCC
(V)
Spkr. Amp. VCC
(V)
Spkr. Amp. ICC
(mA)
POUT into 4Ω @ 1% THD+N
(W)
POUT into 4Ω @ 10% THD+N
(W)
POUT into 8Ω @ 1% THD+N
(W)
POUT into 8Ω @ 10% THD+N
(W)
Spkr. Amp. Half Pwr. THD+N
(%)
SNR
(dB)
PSRR
(dB)
Spkr. Amp. Ext. Gain Spkr. Amp. Fxd. Gain
(V/V)
Spkr. Amp. Fxd. Gain
(V/V)
Features Channels
min max typ min min min min A- Weighted min min max
MAX9737  D 8 28 15 12 14 6 7.5 0.06 97 80 - - -
Filterless Operation
Wide Supply Range
1
MAX9744  4.5 14 - - 20 - - 0.04 95 75 Yes - -
Analog or Digitally Programmable Volume Control
External Clock Synchronization
Filterless Operation
Wide Supply Range
2
MAX9736A  8 28 30 13 16 13.5 17.5 0.04 96.5 80 Yes - -
Filterless Operation
Mono Mode
Pin-for-Pin Compatible Packaging
Wide Supply Range
2
MAX9736B  8 28 30 11 14 6 7.5 0.04 97 80 Yes - -
Filterless Operation
Mono Mode
Pin-for-Pin Compatible Packaging
Wide Supply Range
2
MAX9768  4.5 14 11 - - 8 10 0.09 97 84 Yes - -
Analog or Digitally Programmable Volume Control
External Clock Synchronization
Filterless Operation
Wide Supply Range
1
MAX9742  20 40 15 - 16 - 20.5 0.06 93 68 Yes - -
Differential Inputs
Single Ended Output
Wide Supply Range
2
MAX9741  10 25 26 - 8.5 - 12 - - 70 No 4.5 30.2 Differential Inputs 2
MAX9709  10 22 20 39 50 19 25 0.1 95 90 No 12.6 63
External Clock Synchronization
Programmable Thermal Flag
2
MAX9708  10 18 20 32 42 16 21 0.15 95 90 No 12.6 63
External Clock Synchronization
Programmable Thermal Flag
2
MAX9703  10 25 14 7 10 11 15 0.015 97 80 No 4.5 30 Differential Inputs 1
MAX9704  10 25 24 4 5 8 10 0.02 97 80 No 4.5 30 Differential Inputs 2
MAX9713  10 25 10 - - 5.2 6 0.1 97 76 No 4.5 13 Differential Inputs 1
MAX9714  10 25 18 - - 5.2 6 0.1 97 76 No 4.5 13 Differential Inputs 2
See All Speaker Amplifiers (30)



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