MAX9705 2.3W, Ultra-Low-EMI, Filterless, Class D Audio Amplifier

The MAX9705 3rd-generation, ultra-low EMI mono, Class D Audio Power Amplifier provides Class AB performance with Class D efficiency. The MAX9705 delivers 2.3W into a 4 load and offers efficiencies above 85%. Active emissions limiting (AEL) circuitry greatly reduces EMI by actively controlling the output FET Gate transitions under all possible transient output-voltage conditions. AEL prevents high-frequency emissions resulting from conventional Class D free-wheeling behavior in the presence of an inductive load. Zero dead time (ZDT) technology maintains state-of-the-art efficiency and THD+N performance by allowing the output FETs to Switch simultaneously without cross-conduction. A patented spread-spectrum modulation scheme eliminates the need for output filtering found in traditional Class D devices. These design concepts reduce an application's component count and extend battery life.
The MAX9705 offers two modulation schemes: a fixedfrequency (FFM) mode and a spread-spectrum (SSM) mode that further reduces EMI-radiated emissions due to the modulation frequency. The MAX9705 Oscillator CAN be synchronized to an external Clock through the SYNC input, allowing the switching frequency to be externally defined. The SYNC input also allows multiple MAX9705s to be cascaded and frequency locked, minimizing interference due to Clock intermodulation. The device utilizes a fully differential architecture, a full-bridged output, and comprehensive click-and-pop suppression. The gain of the MAX9705 is set internally (MAX9705A: 6dB, MAX9705B: 12dB, MAX9705C: 15.6dB, MAX9705D: 20dB), further reducing external component count.
The MAX9705 is available in 10-pin TDFN (3mm x 3mm x 0.8mm), 10-pin MAX, and 12-bump UCSP" (1.5mm x 2mm x 0.6mm) packages. The MAX9705 is specified over the extended -40C to +85C temperature range.
By Maxim Integrated Products
Part Manufacturer Description Datasheet Samples
MAX9705BEUB+ Maxim Integrated Products Audio Amplifier, 2.3W, 1 Channel(s), 1 Func, BICMOS, PDSO10, LEAD FREE, MO-187CBA, MICRO, MAX-10
MAX9705AEUB+ Maxim Integrated Products Audio Amplifier, 2.3W, 1 Channel(s), 1 Func, BICMOS, PDSO10, LEAD FREE, MO-187CBA, MICRO, MAX-10
MAX9705AEBC+ Maxim Integrated Products Audio Amplifier, 1.4W, 1 Channel(s), 1 Func, BICMOS, PBGA12, 1.50 X 2 MM, 0.60 MM HEIGHT, LEAD FREE, UCSP-12
MAX9705CETB+ Maxim Integrated Products Audio Amplifier, 2.3W, 1 Channel(s), 1 Func, BICMOS, 3 X 3 MM, 0.80 MM HEIGHT, LEAD FREE, MO-229WEED-3, TDFN-10
MAX9705CEBC+T Maxim Integrated Products Audio Amplifier, 1.4W, 2 Channel(s), 1 Func, BICMOS, PBGA12, 1.50 X 2 MM, 0.60 MM HEIGHT, ROHS COMPLIANT, UCSP-12
MAX9705AEBC+T Maxim Integrated Products Audio Amplifier, 1.4W, 2 Channel(s), 1 Func, BICMOS, PBGA12, 1.50 X 2 MM, 0.60 MM HEIGHT, ROHS COMPLIANT, UCSP-12
MAX9705CETB+T Maxim Integrated Products Audio Amplifier, 2.3W, 2 Channel(s), 1 Func, BICMOS, 3 X 3 MM, 0.80 MM HEIGHT, ROHS COMPLIANT, TDFN-10
MAX9705BETB+ Maxim Integrated Products Audio Amplifier, 2.3W, 1 Channel(s), 1 Func, BICMOS, 3 X 3 MM, 0.80 MM HEIGHT, LEAD FREE, MO-229WEED-3, TDFN-10
MAX9705BEBC+T Maxim Integrated Products Audio Amplifier, 1.4W, 2 Channel(s), 1 Func, BICMOS, PBGA12, 1.50 X 2 MM, 0.60 MM HEIGHT, ROHS COMPLIANT, UCSP-12
MAX9705DETB+T Maxim Integrated Products Audio Amplifier, 2.3W, 2 Channel(s), 1 Func, BICMOS, 3 X 3 MM, 0.80 MM HEIGHT, ROHS COMPLIANT, TDFN-10
MAX9705 's PackagesMAX9705 's pdf datasheet
MAX9705DETB QFN
MAX9705BETB QFN
MAX9705AETB QFN
MAX9705CETB QFN
MAX9705BETBT QFN
MAX9705DETBT QFN
MAX9705AETBT QFN
MAX9705CETBT QFN
MAX9705DEBC UCSP
MAX9705CEBC UCSP
MAX9705BEBC UCSP
MAX9705AEBC UCSP
MAX9705DEBCT UCSP
MAX9705CEBCT UCSP
MAX9705BEBCT UCSP
MAX9705AEBCT UCSP




MAX9705 Pinout, Pinouts
MAX9705 pinout,Pin out
This is one package pinout of MAX9705,If you need more pinouts please download MAX9705's pdf datasheet.

MAX9705 Application circuits
MAX9705 circuits
This is one application circuit of MAX9705,If you need more circuits,please download MAX9705's pdf datasheet.


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MAX9705 Application Notes MAX9705 RoHS MAX9705 Circuits MAX9705 footprint