2.1 Channel Audio Processor with Subwoofer Output
This board is an Audio Processor built using PT2033 chip audio processor designed for versatile applications. It includes 3 stereo input selectors with internal gain and master volume control with low-frequency loudness compensation. It is capable of individual channel output volume adjustment and also tone control.
The PT2033 is 2.1 CH Audio Processor with I2C bus interface. The IC is also a sound processor that includes all of the functions required to process the audio signal for TV & Mini Compo, such as Tone control, Volume, Mute, Balance, Loudness, 3 Stereo inputs selector, 1 Stereo output, and 1 Subwoofer out are all built into a single chip to provide Audio system having the highest audio performance and reliability. If a system wants subwoofer signal output, a traditional solution needs a lot of discrete components and OPAMPs to consist of a low pass filter; the PT2033, only needs 2 external capacitors. The PT2033 combines the low pass filter inside the audio processor and the user may determine low pass corner frequency by the capacitance. A broader supply range emphasizes support to every application.
Features
- Wide operation range (VDD from 4V to 10V)
- Controlled by I²C interface
- 3 Stereo Inputs with gain selection.
- Screw Terminals for Easy Inputs and Outputs connections
- Header Connector for Power Supply Input
- Input gain range, from 0dB to +11.25dB, 3.75dB per step
- 2 channels master volume: from 0 dB to -78.75dB, 1.25dB per step
- Built In channel mixer and lowpass filter for subwoofer output
- Subwoofer output volume: from 0dB to -37.5dB, 1.25dB per step
- Tone control (Bass and Treble): from -14dB to +14dB, 2dB per step
- Low harmonic distortion (0.002%, Vo=200mVrms)
- Low noise and DC offset
- On Board Power LED
- 4 x 3MM Mounting Holes
- PCB Dimensions 65.41 x 43.18 mm
Connections
- CN1: Pin 1 = Audio Input Left 1, Pin 2 = Audio Input Left 2, Pin 3 = Audio Input Left 3, Pin 4 = GND
- CN2: Pin 1 = Audio Input Right 1, Pin 2 = Audio Input Right 2, Pin 3 = Audio Input Right 3, Pin 4 = GND
- CN3: Pin 1 = Audio Output Left Channel, Pin 2 = GND
- CN4: Pin 1 = Audio Output Right Channel, Pin 2 = GND
- CN5: Pin 1 = Audio Output Subwoofer, Pin 2 = GND
- CN6: Pin 1 NC, Pin 2 = SCL-I2C, Pin 3 = SDA-I2C, Pin 4 = GND
- CN7: Pin 1,2 = VDD , Pin 3,4 = GND
- D1: Power LED
Share
This board is an Audio Processor built using PT2033 chip audio processor designed for versatile applications. It includes 3 stereo input selectors with internal gain and master volume control with low-frequency loudness compensation. It is capable of individual channel output volume adjustment and also tone control.
The PT2033 is 2.1 CH Audio Processor with I2C bus interface. The IC is also a sound processor that includes all of the functions required to process the audio signal for TV & Mini Compo, such as Tone control, Volume, Mute, Balance, Loudness, 3 Stereo inputs selector, 1 Stereo output, and 1 Subwoofer out are all built into a single chip to provide Audio system having the highest audio performance and reliability. If a system wants subwoofer signal output, a traditional solution needs a lot of discrete components and OPAMPs to consist of a low pass filter; the PT2033, only needs 2 external capacitors. The PT2033 combines the low pass filter inside the audio processor and the user may determine low pass corner frequency by the capacitance. A broader supply range emphasizes support to every application.
Features
- Wide operation range (VDD from 4V to 10V)
- Controlled by I²C interface
- 3 Stereo Inputs with gain selection.
- Screw Terminals for Easy Inputs and Outputs connections
- Header Connector for Power Supply Input
- Input gain range, from 0dB to +11.25dB, 3.75dB per step
- 2 channels master volume: from 0 dB to -78.75dB, 1.25dB per step
- Built In channel mixer and lowpass filter for subwoofer output
- Subwoofer output volume: from 0dB to -37.5dB, 1.25dB per step
- Tone control (Bass and Treble): from -14dB to +14dB, 2dB per step
- Low harmonic distortion (0.002%, Vo=200mVrms)
- Low noise and DC offset
- On Board Power LED
- 4 x 3MM Mounting Holes
- PCB Dimensions 65.41 x 43.18 mm
Connections
- CN1: Pin 1 = Audio Input Left 1, Pin 2 = Audio Input Left 2, Pin 3 = Audio Input Left 3, Pin 4 = GND
- CN2: Pin 1 = Audio Input Right 1, Pin 2 = Audio Input Right 2, Pin 3 = Audio Input Right 3, Pin 4 = GND
- CN3: Pin 1 = Audio Output Left Channel, Pin 2 = GND
- CN4: Pin 1 = Audio Output Right Channel, Pin 2 = GND
- CN5: Pin 1 = Audio Output Subwoofer, Pin 2 = GND
- CN6: Pin 1 NC, Pin 2 = SCL-I2C, Pin 3 = SDA-I2C, Pin 4 = GND
- CN7: Pin 1,2 = VDD , Pin 3,4 = GND
- D1: Power LED
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