SI2707-A10-GM

Overview

The Silicon Labs SI2707-A10-GM is an EMI mitigating 2.1 x 5 W Class D digital audio amplifier. It integrates a stereo power stage, PWM DAC, and digital signal processing (DSP). The device supports dual supply voltages of 2.7–3.6 V for the main logic and 4.0–6.6 V for the power stage. It delivers up to 5 W per channel into 3 Ω loads or 3 W into 8 Ω loads with 88% efficiency. Key electrical parameters include a 95 dB dynamic range, less than 0.1% THD+N, and over 50 dB PSRR.

Feature Summary

• Integrates patent-pending EMI mitigation technology including wideband PWM carrier spreading and AM radio band noise-free notch filtering.
• Features comprehensive digital audio processing capabilities such as a programmable 7-band parametric equalizer, dynamic range compressor, and tone control.
• Supports master/slave I2S interfaces with automatic digital audio rate detection from 32 kHz to 192 kHz.
• Provides pop and click free operation with automatic standby mode triggered by an audio activity detector.

Applications

• PMP/MP3 docking stations
• Portable consumer audio electronics
• Active and wireless speakers
• TV sound bars

Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm package type matches design requirements, as the series offers both 24-pin QFN and 48-pin eTQFP options. Check datasheet revision status for any updates to operating conditions or pin assignments prior to finalizing procurement specifications.

Selection Notes

Select this model for designs requiring integrated DSP features alongside high-efficiency amplification. Ensure the system architecture accommodates the dual voltage supply requirement for optimal performance. Verify that the chosen package variant aligns with PCB layout constraints and thermal management strategies defined in the application guidelines.

Part Context

This component belongs to the Si270x family of EMI mitigating Class D amplifiers. It shares functional similarities with the Si2704, Si2705, and Si2706 models but includes specific digital audio processing blocks like the 7-band EQ and crossover filters. The family targets compact, high-fidelity audio systems where electromagnetic interference compliance is critical.

Replacement Considerations

Si2704-A10-GM, Si2705-A10-GM, Si2706-A10-GM