Datasheet MAX9776ETJ+ - Maxim Audio Amplifiers 2 x 1.5 W Stereo Class D Subsystem — Ficha de datos

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Manufacturer: Maxim

Description: Audio Amplifiers 2 x 1.5 W Stereo Class D Subsystem

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Docket:
19-0746; Rev 4; 8/08
2 x 1.5W, Stereo Class D Audio Subsystem with DirectDrive Headphone Amplifier
General Description
The MAX9775/MAX9776 combine a high-efficiency Class D, stereo/mono audio power amplifier with a mono DirectDrive ® receiver amplifier and a stereo DirectDrive headphone amplifier.

Maxim's 3rd-generation, ultra-low-EMI, Class D audio power amplifiers provide Class AB performance with Class D efficiency. The MAX9775/MAX9776 deliver 1.5W per channel into a 4 load from a 5V supply and offer efficiencies up to 79%. Active emissions limiting circuitry and spread-spectrum modulation greatly reduce EMI, eliminating the need for output filtering found in traditional Class D devices. The MAX9775/MAX9776 utilize a fully differential architecture, a full-bridged output, and comprehensive clickand-pop suppression. A 3D stereo enhancement function allows the MAX9775 to widen the stereo sound field immersing the listener in a cleaner, richer sound experience than typically found in

Specifications:

• Audio Load Resistance: 32 Ohm
• Available Set Gain: 12 dB
• Common Mode Rejection Ratio (Min): 45 dB
• Dual Supply Voltage: 3 V, 5 V
• Input Signal Type: Single
• Maximum Power Dissipation: 1360 mW
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 2.7 V to 5.5 V
• Operating Temperature Range: - 40 C to + 85 C
• Output Power: 1.5 W
• Output Signal Type: Differential, Single
• Output Type: 2-Channel Stereo
• Package / Case: TQFN-32
• Packaging Type: Tube
• Product: Class-D
• Supply Current: 9.5 mA
• Supply Type: Triple
• Supply Voltage Range: 2.7 V to 5.5 V
• THD plus Noise: 0.04 %
• RoHS: Yes