SY24145SGAC - High Performance, High Fidelity 30W Digital Audio-Power Amplifier


  • 2CH Stereo(30W×2BTL)
  • 2.0 BTL Mode or Single-filter PBTL Mode Support
  • 4.5V to 28V PVDD Range
  • 32kHz to 96kHz Sample Rate Support (LJ/RJ/I2S)
  • I2C Address Selection Pin
  • Independent Channel Volume Controls with 48dB to Mute
  • SDATA Generator (I2S Output)
  • Two DC Blocking Filters
  • 18 PEQs or 12 PEQs + 6 SPEQs Each Channel for Speaker Protection and Speaker Compensation
  • 3 Bands Dynamic Range Control  Plus a Post Dynamic Range Control
  • Loudness  Control
  • Power Level Meter
  • 3-wire I2S Digital Audio Interface without MCLK
  • Thermal, Over Current, Short Circuit, Short Load,  Open Load Protections and EQ/DRC Coefficients  Checksum
  • Support Automatic Audio Sample Rate Detection
  • Surface Mount, TQFP 48-Pin, 7mm×7mm

Typical Application


The SY24145S is a 2×30W, digital audio power amplifier for driving bridge-tied stereo speakers. One serial data input allows processing of up to two discrete audio channels and seamless integration to most digital audio processors. The SY24145S is an I2S slave device receiving all clocks from the external sources.
The SY24145S has the essential audio signal processing functions like dynamic range control, loudness control and parametric equalization.


  • LCD  TV, LED TV or Monitor
  • Digital Speaker, Bluetooth Speaker
  • Sound Bar