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MAX9770 - 1.2W Low-EMI / Filterless / Mono Class D Amplifier

General Description

The MAX9770 combines a mono, filterless, Class D speaker amplifier and stereo DirectDrive headphone amplifiers in a single device.

Key Features

  • that reduce external component count, system cost, board space, and offer improved audio reproduction. The speaker amplifier makes use of Maxim’s patented Class D architecture, providing Class AB performance with Class D efficiency, conserving board space, and extending battery life. The speaker amplifier delivers 1.2W into an 8Ω load while offering efficiencies above 85%. A spread-spectrum scheme reduces radiated emissions caused by the modulation frequency. Furthermore, the MAX9770 oscillator.

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Other Datasheets by Maxim Integrated (now Analog Devices)

Part Number Description
MAX977 Single/Dual / +3V/+5V Dual-Speed Comparators with Auto-Standby
MAX9700 1.2W / Low-EMI / Filterless / Class D Audio Amplifier
MAX9703 15W / Filterless / Spread-Spectrum Mono/Stereo Class D Amplifiers
MAX971 Single/Dual-Supply Comparators
MAX972 Single/Dual-Supply Comparators

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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19-3134; Rev 0; 5/04 1.2W Low-EMI, Filterless, Mono Class D Amplifier with Stereo DirectDrive Headphone Amplifiers General Description The MAX9770 combines a mono, filterless, Class D speaker amplifier and stereo DirectDrive headphone amplifiers in a single device. The MAX9770 operates from a single 2.5V to 5.5V supply and includes features that reduce external component count, system cost, board space, and offer improved audio reproduction. The speaker amplifier makes use of Maxim’s patented Class D architecture, providing Class AB performance with Class D efficiency, conserving board space, and extending battery life. The speaker amplifier delivers 1.2W into an 8Ω load while offering efficiencies above 85%.