Amplifier Circuit Diagrams

STK428-610 ANFI PROJECT PT2317B PREANFI TOP249Y 2X30V SMPS SCHEMATIC CIRCUIT DIAGRAM

The amphitheater project has been successfully finalized. In the amplifier circuit, the STK428-610 integrated preamp circuit was utilized in conjunction with the PT2317B digital control. Additionally, a TOP249Y power source was designed for all components of the SMPS circuit. The SMPS power transformer used was ETD39, with specific winding information available on page 34 to 39. The SMPS circuit was efficiently prepared with minimal materials due to the MOSFET housed in the driver of TOP249Y. This SMPS design was accomplished using the PI Expert program.

STK428-610 ANFI PROJECT PT2317B PREANFI TOP249Y 2X30V SMPS SCHEMATIC CIRCUIT DIAGRAM

TOP249Y ANFI SMPS SCHEMATIC

Furthermore, you have the flexibility to employ the preamp and SMPS circuitry in various projects. To do so, it’s essential to review the datasheet files that match the different STK amplifier integrals. These datasheets will align with the PCB drawing designed for the amphitheater, which is compatible with numerous leg connections of various STK series auxiliary integrations.

STK428-610 ANFI SCHEMATIC

STK428-610 ANFI SCHEMATIC

The PT2317B integrated into the preamplifier circuit of the amphibious project is highly efficient and requires minimal components. Primarily designed for car audio systems, it supports 2 channels and offers integrated 4-channel output, along with controls for bass, treble, balance, fader, and loudness adjustments.

PT2317B CIRCUIT SCHEMATIC

PT2317B CIRCUIT SCHEMATIC

You can use an amphitheater, SMPS, and tone control circuits for very different projects, especially if it is a quality amp project, especially if the circuits have separate print circuits.

STK428-610 ANFI PROJECT PT2317B PREANFI TOP249Y 2X30V SMPS SCHEMATIC CIRCUIT DIAGRAM 2

STK428-610 ANFI PROJECT PT2317B PREANFI TOP249Y 2X30V SMPS SCHEMATIC CIRCUIT DIAGRAM 3

STK428-610 ANFI PROJECT PT2317B PREANFI TOP249Y 2X30V SMPS SCHEMATIC CIRCUIT DIAGRAM 4

PT2317A and PT2317B are advanced four-channel digital audio processors crafted using CMOS Technology, specifically tailored for car audio and hi-fi systems. These chips integrate volume control, right/left balance, bass, treble, fader, and loudness functions within a single unit. Additionally, they offer selectable gain, direct key mode, and LED indicators for each function, making them highly efficient electronic audio processors with exceptional performance and reliability, requiring minimal external components. The pin assignments and application circuits are optimized for straightforward PCB layout, ensuring both ease of use and cost-saving advantages.

FEATURES

  • CMOS Technology
  • Low Power Consumption
  •  Least External Components
  • Treble and Bass Control
  • Loudness Function
  • Fader and Balance Function
  • Direct Key Mode
  • LED Display Indicator for every Function
  • Low Total Harmonic Distortion: THD<0.1%
  • 4 Channels in the same chip

APPLICATIONS

  • Car Stereo (Audio)
  • Hi-Fi Audio System
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