SSM4567ACBZ-R7

Overview

The SSM4567ACBZ-R7 is a digital input Class-D power amplifier with an integrated boost converter. It delivers 2.5 W into 4 Ω and 1.42 W into 8 Ω at 3.6 V supply. The device features spread-spectrum Σ-Δ modulation, PDM or PCM (I2S/TDM) interfaces, and output sensing for voltage, current, and VBAT. It operates from 2.5 V to 5.2 V on VBAT and 1.62 V to 1.98 V on IOVDD. System efficiency reaches 89.7% into 8 Ω at 1 W. THD+N is 0.025% at 500 mW. Quiescent power consumption is 19.8 mW.

Feature Summary

• Integrated boost regulator provides constant maximum output power across the battery voltage range.
• Digital audio interface supports PDM, I2S, left justified, TDM slave, and multichip I2S formats.
• Built-in output voltage, current, and VBAT sensing with ADC outputs available via serial port.
• Spread-spectrum pulse density modulation reduces EMI radiated emissions.

Applications

• Mobile handsets
• Tablets
• Portable media players

Procurement Notes

Verify the specific ordering suffix matches the required package and reel configuration. Confirm that the component revision aligns with the design requirements. Check for any manufacturer notices regarding lead times or lifecycle status before finalizing procurement plans.

Selection Notes

Select this component when system noise immunity is critical due to its digital input architecture. Ensure the application requires an integrated boost solution to maintain power levels as battery voltage drops. Verify that the host processor can support the required PDM or PCM clock rates and control interfaces.

Part Context

This part belongs to Analog Devices' digital Class-D amplifier family designed for portable electronics. It combines a DAC, power amplifier, and boost converter in a single chip. The WLCSP package allows for compact designs in space-constrained mobile devices.

Replacement Considerations

SSM4567CBZ-R7