Key facts
- Brand
- Maxim
- Model
- MAX9709
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-07
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Maxim MAX9709 Class D Audio Amplifier Datasheet
The MAX9709 is a stereo/mono Class D audio power amplifier that delivers up to 2 × 25 W into an 8 Ω load in stereo mode and 1 × 50 W into a 4 Ω load in mono mode, achieving up to 87 % efficiency. It operates from a single +10 V to +22 V supply and offers both fixed‑frequency and spread‑spectrum modulation, with optional clock synchronization for cascading multiple units.
The device is supplied in a 56‑pin thin‑profile QFN package, supports fully differential inputs, programmable gain (22 dB, 25 dB, 29.5 dB, 36 dB), click‑and‑pop suppression, and includes short‑circuit and thermal‑overload protection with a programmable thermal flag. Typical applications include LCD/PDTVs, automotive audio, and PC/Hi‑Fi solutions.
Maxim MAX9709 specifications
| Mono Output Power | 1 × 50 W |
|---|---|
| Efficiency | up to 87 % |
| Operating Temperature Range | -40 °C to +85 °C |
| Package | 56‑pin TQFN |
All Maxim MAX9709 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
Does the device include spread‑spectrum modulation?
Yes, the MAX9709 offers a spread‑spectrum modulation (SSM) mode that reduces EMI‑radiated emissions.
What is the maximum output power in stereo mode?
The MAX9709 can deliver 2 × 25 W into an 8 Ω load in stereo mode.
From: Maxim MAX9709 25W/50W Filterless Spread-Spectrum Stereo/Mono Class D Amplifier Datasheet
What supply voltage does the MAX9709 require?
It operates from a single supply voltage of +10 V to +22 V.
From: Maxim MAX9709 25W/50W Filterless Spread-Spectrum Stereo/Mono Class D Amplifier Datasheet