Key facts
- Brand
- Maxim
- Model
- MAX9708
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-07
Start here
Maxim Integrated MAX9708 Class D Audio Amplifier Datasheet
The MAX9708 is a mono/stereo Class D audio power amplifier that operates from a single +10 V to +18 V supply. It provides Class AB‑like performance with up to 87 % efficiency, eliminating the need for a bulky heatsink. The device supports two modulation schemes—fixed‑frequency (FFM) and spread‑spectrum (SSM)—to reduce EMI, and can be synchronized to an external clock from 600 kHz to 1.2 MHz for cascaded operation.
Key features include fully differential inputs, click‑and‑pop suppression, four selectable gain settings (22 dB, 25 dB, 29.5 dB, 36 dB), programmable thermal flag thresholds, and built‑in short‑circuit and thermal‑overload protection. The amplifier is offered in 56‑pin TQFN and 64‑pin TQFP packages and is rated for –40 °C to +85 °C operation.
Maxim MAX9708 specifications
| Stereo Output Power | 2 × 21 W into 8 Ω |
|---|---|
| Mono Output Power | 1 × 42 W into 4 Ω |
| Efficiency | up to 87 % |
| Supply Voltage Range | +10 V to +18 V |
| Operating Temperature Range | -40 °C to +85 °C |
| Gain Settings | 22 dB, 25 dB, 29.5 dB, 36 dB |
| Modulation Schemes | Fixed‑frequency (FFM) and Spread‑Spectrum (SSM) |
Source: Maxim MAX9708 20W/40W Filterless Spread-Spectrum Mono/Stereo Class D Amplifier Datasheet
All Maxim MAX9708 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum output power in stereo mode?
The MAX9708 can deliver up to 2 × 21 W into an 8 Ω load in stereo mode.
From: Maxim MAX9708 20W/40W Filterless Spread-Spectrum Mono/Stereo Class D Amplifier Datasheet
What supply voltage range does the MAX9708 support?
It operates from a single +10 V to +18 V supply.
From: Maxim MAX9708 20W/40W Filterless Spread-Spectrum Mono/Stereo Class D Amplifier Datasheet