SSM2306CPZ-REEL7

Overview

The SSM2306CPZ-REEL7 is a fully integrated, high-efficiency Class-D stereo audio amplifier designed for portable applications. It operates from a single supply voltage ranging from 2.5 V to 5.0 V and delivers up to 2 W of continuous output power into a 4 Ω load at 5.0 V with less than 10% THD+N. The device features an ultralow idle current and a shutdown mode with typical current of 20 nA. It utilizes pulse-density modulation to minimize electromagnetic interference emissions. The signal-to-noise ratio exceeds 96 dB, and the unit includes built-in thermal shutdown and short-circuit protection.

Feature Summary

• Filterless design utilizing sigma-delta modulation to reduce external component count and electromagnetic interference emissions.
• Micropower shutdown mode enabling ultralow standby current consumption for battery-powered devices.
• Integrated pop-and-click suppression architecture to minimize audible transients during power-up and power-down cycles.
• Built-in protection mechanisms including thermal shutdown and output short-circuit protection.

Applications

• Mobile phones
• MP3 players
• Portable gaming devices
• Notebook computers

Procurement Notes

Verify the specific ordering suffix REEL7 against the manufacturer's official documentation to confirm reel packaging specifications. Ensure the RoHS compliant status indicated by the Z suffix aligns with project requirements. Cross-reference the lead frame chip scale package dimensions with PCB layout guidelines to ensure proper footprint compatibility and exposed pad grounding connections.

Selection Notes

Select this component when designing portable audio systems requiring high efficiency and minimal board space due to its filterless operation. Consider the 2.5 V to 5.0 V supply range for compatibility with single-cell lithium-ion batteries. Evaluate the 18 dB default gain setting against input source levels, noting that external resistors can adjust gain downward if necessary for specific application constraints.

Part Context

This part belongs to the Analog Devices SSM2306 series of Class-D audio amplifiers. It is specifically engineered for stereo audio reproduction in compact consumer electronics. The device integrates both left and right channel amplification stages within a single 16-lead LFCSP package, simplifying the design process for dual-speaker configurations in mobile and handheld devices.

Replacement Considerations

SSM2306CPZ-R2

FAQ

Does the SSM2306 require external output filters?

No, the SSM2306 is a filterless amplifier that relies on the inherent inductance of the speaker coil and the natural filtering capacity of the speaker to recover the audio signal.

How is the amplifier gain configured?

The device has a default fixed gain of 18 dB set by internal resistors. This gain can be reduced by connecting external resistors to the input pins.