Key facts
- Brand
- Maxim
- Model
- MAX975
- Category
- Other Electronics
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-07
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Maxim MAX9759 Class D Audio Amplifier Datasheet
The MAX9759 mono Class D audio power amplifier provides Class AB audio performance with the efficiency of Class D, eliminating the need for a heatsink and extending battery life. It delivers up to 3.2 W of continuous power into a 4 Ω load while offering greater than 90 % efficiency and operates without an external LC filter.
The device features selectable gain (6 dB, 12 dB, 18 dB, 24 dB), high PSRR (81 dB), low THD+N (0.02 %), and SNR above 90 dB. It supports external clock synchronization via the SYNC pin, allowing cascade operation of multiple Maxim Class D amplifiers. The MAX9759 operates from a single 5 V supply, consumes 8.4 mA quiescent current, and is available in a 16‑pin thin‑QFN package rated for –40 °C to +85 °C.
Maxim MAX975 specifications
| Maximum Output Power | 3.2 W into 4 Ω |
|---|---|
| Efficiency | >90 % |
| Quiescent Current | 8.4 mA |
| Gain Settings | 6 dB, 12 dB, 18 dB, 24 dB |
| Power‑Supply Rejection Ratio (PSRR) | 81 dB |
| Total Harmonic Distortion + Noise (THD+N) | 0.02 % |
| Signal‑to‑Noise Ratio (SNR) | >90 dB |
| Operating Temperature Range | -40 °C to +85 °C |
All Maxim MAX975 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
How many gain settings are available on the MAX9759?
It provides four selectable gain settings: 6 dB, 12 dB, 18 dB, and 24 dB.
What is the maximum continuous output power into a 4 Ω load?
The amplifier can deliver up to 3.2 W of continuous power into a 4 Ω load.
What is the propagation delay of the MAX975/MAX977 in high‑speed mode?
The high‑speed propagation delay is specified as 28 ns.
From: Maxim MAX975/MAX977 Single/Dual +3V/+5V Dual-Speed Comparators with Auto-Standby Datasheet
What supply current does the comparator draw in low‑power mode?
In low‑power mode the device draws only 3 µA per comparator.
From: Maxim MAX975/MAX977 Single/Dual +3V/+5V Dual-Speed Comparators with Auto-Standby Datasheet