SSM3302ACPZ

SSM3302 is a fully integrated, high efficiency, stereo Class-D audio amplifier. In addition, while mono mode is activated, the user can drive a load as small as 2ohm up to 20W continuous output power by stacking the stereo output terminals. This features a high efficiency, low noise modulation scheme that requires no external LC output filters. This scheme continues to provide high efficiency even at low output power. Spread spectrum pulse density modulation (PDM) is used to provide lower EMI radiated emissions compared with other Class-D architectures. The SSM3302 includes an optional modulation select pin (ultralow EMI emission mode) that significantly reduces the radiated emissions at the Class-D outputs, particularly above 100MHz. The SSM3302 can pass FCC Class-B emissions testing with an unshielded 508mm cable using common-mode choke-based filtering. Application includes mobile computing, flat panel televisions, media docking stations, portable electronics, sound bars.

• Filterless stereo class-D amplifier with Σ-Δ modulation
• Signal-to-noise ratio is 98dB (typ, PO = 10 W, RL = 8ohm)
• Single-supply operation from 7V to 18V
• Flexible gain adjustment pin from 9dB to 24dB
• Fixed input impedance of 40Kohm
• Mono output mode pin for 1 × 20W output power into 2ohm
• 10µA shutdown current, short-circuit and thermal protection
• Pop-and-click suppression, user-selectable ultralow EMI emissions mode
• Thermal warning indicator, power-on reset
• 40 lead LFCSP-WQ package, operating temperature range from -40°C to +85°C

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party