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Product Detailed Parameters
- Description：IC AMP CLASS D STEREO 5W 24QFN
- Series：-
- Mfr：Silicon Labs
- Package：Tray
- Type：Class D
- Output Type：2-Channel (Stereo) with Stereo Headphones
- Max Output Power x Channels @ Load：5W x 2 @ 3Ohm
- Voltage - Supply：4V ~ 6.6V
- Features：Depop, I2S, Short-Circuit and Thermal Protection, Tone and Volume Control
- Mounting Type：Surface Mount
- Supplier Device Package：24-QFN (4x4)
- Package / Case：24-VFQFN Exposed Pad
- Operating Temperature：-20°C ~ 85°C (TA)
- Grade：-
- Qualification：-
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Overview
The Si2704-A10-GM is a stereo EMI mitigating Class D audio amplifier integrating a power stage, PWM DAC, and digital signal processing. It delivers up to 5 W per channel into 3 Ω loads or 3 W into 8 Ω loads with 88% efficiency. The device features delta-sigma PWM, patent-pending EMI mitigation for AM/FM co-existence, and master/slave I2S interfaces. It supports dual supply voltages (2.7–3.6 V main, 4.0–6.6 V power) and includes programmable EQ, tone control, and volume adjustment.
Feature Summary
- Integrates digital signal processing including parametric equalization, dynamic range compression, and tone control.
- Features innovative EMI mitigation technology managing PWM switching noise for enhanced radio co-existence.
- Supports master or slave I2S digital audio input with automatic rate detection.
- Includes multiple low-power operating modes with auto-standby functionality.
Applications
- PMP/MP3 docking stations
- Portable consumer audio electronics
- Active/wireless speakers
- TV sound bars
Procurement Notes
Verify the specific package variant against the datasheet ordering guide. Confirm that the A10 suffix corresponds to the intended thermal and mechanical specifications. Ensure compatibility with the required supply voltage ranges before integration. Cross-reference the revision level of the documentation with the manufacturing date code.
Selection Notes
Select this component for applications requiring high efficiency and integrated digital audio processing. It is suitable for designs needing robust EMI performance without complex external filtering. Consider the dual-supply requirement when designing the power architecture. Evaluate the available digital controls against system complexity requirements.
Part Context
This part belongs to the Si270x series of EMI mitigating Class D amplifiers from Silicon Labs. The series shares common architectural features but varies in output power and digital processing capabilities. The Si2704 specifically provides stereo output with standard digital audio processing functions.
Replacement Considerations
Consult the official datasheet for direct pin-compatible alternatives within the Si270x family. Verify functional equivalence regarding EMI mitigation techniques and digital interface protocols before substitution.
