SSM2211CPZ-REEL7

Overview

The SSM2211CPZ-REEL7 is a low distortion, 1.5 W audio power amplifier manufactured by Analog Devices Inc. It operates on single-supply voltages between 2.7 V and 5.5 V. The device delivers 1 W rms into an 8 Ω load or 1.5 W rms into a 4 Ω load with total harmonic distortion plus noise below 0.2% at 1 W output. It features a 4 MHz bandwidth, excellent power supply rejection, and a shutdown mode that reduces quiescent current to 1 µA. The component is housed in an 8-lead LFCSP package.

Feature Summary

• Delivers high-fidelity audio power with low total harmonic distortion plus noise across the operating range.
• Operates efficiently from unregulated battery sources down to 1.75 V for extended runtime.
• Features differential outputs that eliminate the need for large DC blocking capacitors.
• Includes a shutdown control pin to minimize power consumption during idle periods.

Applications

• Portable computers
• Personal wireless communicators
• Hands-free telephones
• Speaker phones
• Intercoms

Procurement Notes

Verify the specific suffix CPZ indicates the Lead Frame Chip Scale Package (LFCSP) variant when sourcing. Confirm the REEL7 designation corresponds to the standard tape and reel packaging format required for automated assembly processes. Ensure compatibility with the specified thermal resistance parameters for the LFCSP footprint during PCB layout.

Selection Notes

Select this component for applications requiring bridge-tied load configurations without external coupling capacitors. Consider the LFCSP package for superior thermal dissipation compared to SOIC variants. Evaluate the 2.7 V to 5.5 V supply range against system battery profiles. Verify that the 4 MHz bandwidth meets the frequency response requirements of the target audio application.

Part Context

This part belongs to the SSM2211 family of low distortion audio amplifiers. The CPZ suffix specifically denotes the 8-lead LFCSP surface-mount package, which offers improved thermal performance over the SOIC version. The series is designed for portable electronics where efficiency and sound quality are critical constraints.

Replacement Considerations

SSM2211SZ-REEL7

FAQ

Does the SSM2211 require an output coupling capacitor?

No, the bridged output configuration results in zero DC differential voltage, eliminating the need for a coupling capacitor at the speaker load.

What is the maximum junction temperature rating?

The maximum junction temperature rating is 150°C.