SSM2380CBZ-REEL7

Overview

The SSM2380CBZ-REEL7 is a fully integrated, high-efficiency stereo Class-D audio amplifier designed for mobile phone applications. It operates from a single 2.5 V to 5.5 V supply and delivers 2 W into a 4 Ω load or 1.4 W into an 8 Ω load at 5.0 V with less than 1% THD+N. The device features a signal-to-noise ratio exceeding 100 dB and ultralow shutdown current of 20 nA. It utilizes spread-spectrum Σ-Δ modulation to minimize EMI without external filters. Available in a 16-ball, 2.0 mm × 2.0 mm WLCSP package, it supports I2C control, gain select, and ALC modes.

Feature Summary

• Filterless stereo Class-D architecture using spread-spectrum Σ-Δ modulation to reduce EMI emissions without output filters.
• High efficiency operation reaching 93% at 5.0 V with an 8 Ω speaker load.
• Integrated Automatic Level Control (ALC) and pop-and-click suppression circuitry for noiseless activation.
• Flexible interface configuration via MODE pin supporting I2C control, gain select, and ALC modes.

Applications

• Mobile phones
• MP3 players
• Portable electronics

Procurement Notes

Verify the specific ordering suffix REEL7 confirms tape and reel packaging when sourcing. Confirm the component matches the Rev. A datasheet specifications. Ensure the 16-ball WLCSP footprint aligns with the target PCB layout. Validate that the supply voltage range of 2.5 V to 5.5 V meets system requirements.

Selection Notes

Select this amplifier for designs requiring filterless stereo output to conserve board space. Consider the I2C interface for dynamic gain and ALC adjustments. Evaluate the 2.0 mm × 2.0 mm WLCSP package for compact form factors. Verify thermal performance under maximum power conditions within the commercial temperature range.

Part Context

The SSM2380 is part of Analog Devices' portfolio of high-efficiency audio amplifiers. It is specifically engineered to maximize performance in battery-powered portable devices. The device integrates advanced modulation techniques to achieve high audio quality while minimizing electromagnetic interference.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.

FAQ

How does the SSM2380 handle EMI without output filters?

It uses spread-spectrum Σ-Δ modulation, which reduces spectral components at high frequencies. This eliminates the need for external EMI filters for twisted speaker cable lengths shorter than 10 cm.

What is the function of the MODE pin?

The MODE pin selects the operating mode: connecting it to GND enables I2C control mode, connecting it to VDD enables gain select mode, and leaving it floating enables ALC mode.

Does the SSM2380 require input coupling capacitors?

Input coupling capacitors can be omitted if the DC input common-mode voltage is approximately VDD/2, as the device features fully differential inputs.