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Turntable System

Overview

Music lovers seek the authentic warmth of vinyl paired with the convenience of digital playback and archiving. This turntable system delivers smooth motor control, clean power, and precise audio processing for rich sound quality and effortless USB connectivity. An ultra-low power motor control MCU ensures accurate rotation speeds, while user-adjustable switches allow for personalized playback control. A synchronous buck regulator efficiently steps down 24V to 3.3V, with an LDO minimizing noise for pristine audio performance. The op amp-driven RIAA preamplifier reproduces analog sound, delivering warm audio to amplifiers or powered speakers via RCA connections. With USB output, users can digitize vinyl playback for custom playlists, effects, or recording.

System Benefits:

  • User-configurable settings via switches for personalized playback experiences
  • Enhanced audio quality with op amps, minimizing noise and distortion
  • Clean and stable power delivery to sensitive audio components

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Turntable System

WS132-1Connector Arrow.124Connected signals lineConnector Line.146Connector Line.229Sheet.1Sheet.2Sheet.3Sheet.4WS132-1WS132-1WS132-1SPST NO SwitchSheet.30Sheet.31Sheet.32Sheet.33Sheet.34Sheet.35Connector ArrowConnector Arrow.3724V24V24VConnector Arrow.393.3V3.3V3.3VConnected signals arrowConnected signals arrow.423.3V3.3V3.3VResistor - FixedDiode - LEDSheet.82Sheet.83Sheet.84Sheet.85Sheet.86Darlington.651Sheet.88Darlington.254Connector LineGroundSheet.104Sheet.105On/Off LightOn/Off LightOn/Off LightResistor - Fixed.108Connector Arrow.109Connector Line.110Connector Arrow.112Connector Arrow.114Connector Arrow.116Vertical Wire Bundle222Sheet.119Connector Arrow.121Connector Arrow.1223V3V3VVertical Wire Bundle.125666Sheet.127Bi-directionalVertical Wire Bundle.130222Sheet.132Bi-directional.134Vertical Wire Bundle.135333Sheet.137Resistor - Fixed.138Connector Line.139Ground.141Sheet.142Sheet.143Resistor - Fixed.144Resistor - Fixed.145Connector Line.147Vertical Wire Bundle.148222Sheet.150Diode - LED.151Sheet.152Sheet.153Sheet.154Sheet.155Sheet.156Darlington.651Sheet.158Darlington.254Diode - LED.160Sheet.161Sheet.162Sheet.163Sheet.164Sheet.165Darlington.651Sheet.167Darlington.254Ground.169Sheet.170Sheet.171Ground.172Sheet.173Sheet.174Strobe LightStrobe LightStrobeLightLanding LightLanding LightLandingLightConnector Arrow.177 3.3V3.3V3.3VBLDC MotorSquare.40Inductor.10Sheet.182Sheet.183Sheet.184Inductor.14Sheet.186Sheet.187Sheet.188Inductor.18Sheet.190Sheet.191Sheet.192Dynamic connectorDynamic connector.27Dynamic connector.25SquareSheet.197Square.41Sheet.199Sheet.200Sheet.201Connector Arrow.202Vertical Wire Bundle.203 333Sheet.205Tonearm/ CartridgeTonearm/ CartridgeTonearm/ CartridgeConnected signals arrow.230Connector Line.231Connector 2Connector Arrow.233Connector Line.234Connector 2.235Connector 2.236LineConnector Line.239Connector Arrow.240PhonoPhonoPhonoLineLineLineInputDC/DC BuckDC/DC BuckDC/DC BuckLDOLDOLDOHVPAKHVPAKHVPAKPitch ControlPitch ControlPitch ControlSwitch for Pitch ControlSwitch for Pitch ControlSwitch for Pitch Control33/45/78 RPM Control Buttons33/45/78 RPM Control Buttons33/45/78 RPM Control ButtonsPlay/PausePlay/PausePlay/PauseIPSIPSIPSRCA OUTRCA OUTRCA OUTRIAA PreampRIAA PreampRIAA PreampSheet.246MCUMCUMCUVddVddVddADCADCADCGPIOGPIOGPIOGPIOGPIOGPIO GPIOGPIOGPIOPWMPWMPWMSCI/I2CSCI/I2CSCI/I2CSCI/UARTSCI/UARTSCI/UARTADCADCADC GPIOGPIOGPIO

MCU

RA Arm Cortex-M MCUs

DC/DC Buck

Buck Regulators (Integrated FETs)

LDO

Linear Regulators (LDO)

RIAA Preamp

Precision Op Amps (Vos <1mV)

IPS

Inductive Position Sensors

Turntable System with USB Output

WS132-2Connected signals lineConnector Arrow.124Connector Line.146Connector Arrow.254Sheet.1Sheet.2Sheet.3Sheet.4WS132-2WS132-2WS132-2SPST NO SwitchSheet.30Sheet.31Sheet.32Sheet.33Sheet.34Sheet.35Connector ArrowConnector Arrow.3724V24V24VConnector Arrow.39 3.3V3.3V3.3VConnected signals arrowConnected signals arrow.42 3.3V3.3V3.3VResistor - FixedDiode - LEDSheet.82Sheet.83Sheet.84Sheet.85Sheet.86Darlington.651Sheet.88Darlington.254Connector LineGroundSheet.104Sheet.105On/Off LightOn/Off LightOn/Off LightResistor - Fixed.108Connector Arrow.109Connector Line.110Pitch ControlPitch ControlPitch ControlConnector Arrow.112Switch for Pitch ControlSwitch for Pitch ControlSwitch for Pitch ControlConnector Arrow.11433/45/78 RPM Control Buttons33/45/78 RPM Control Buttons33/45/78 RPM Control ButtonsConnector Arrow.116Vertical Wire Bundle 222Sheet.119Play/PausePlay/PausePlay/PauseConnector Arrow.121Connector Arrow.1223V3V3VVertical Wire Bundle.125666Sheet.127Bi-directionalVertical Wire Bundle.130222Sheet.132IPSIPSIPSBi-directional.134Vertical Wire Bundle.135333Sheet.137Resistor - Fixed.138Connector Line.139Ground.141Sheet.142Sheet.143Resistor - Fixed.144Resistor - Fixed.145Connector Line.147Vertical Wire Bundle.148222Sheet.150Diode - LED.151Sheet.152Sheet.153Sheet.154Sheet.155Sheet.156Darlington.651Sheet.158Darlington.254Diode - LED.160Sheet.161Sheet.162Sheet.163Sheet.164Sheet.165Darlington.651Sheet.167Darlington.254Ground.169Sheet.170Sheet.171Ground.172Sheet.173Sheet.174Strobe LightStrobe LightStrobeLightLanding LightLanding LightLandingLightConnector Arrow.1773.3V3.3V3.3VBLDC MotorSquare.40Inductor.10Sheet.182Sheet.183Sheet.184Inductor.14Sheet.186Sheet.187Sheet.188Inductor.18Sheet.190Sheet.191Sheet.192Dynamic connectorDynamic connector.27Dynamic connector.25SquareSheet.197Square.41Sheet.199Sheet.200Sheet.201Connector Arrow.202Vertical Wire Bundle.203333Sheet.205Tonearm/ CartridgeTonearm/ CartridgeTonearm/ CartridgeConnector Line.229Connected signals arrow.230Connector Line.231Connector 2Connector Arrow.233Connector Line.234Connector 2.235Connector 2.236LineConnector Line.239Connector Arrow.240Connector Arrow.246Connector Line.247Connector Arrow.2483.3V3.3V3.3VLineLineLinePhonoPhonoPhonoLaptopVertical Wire Bundle.255222Sheet.257InputDC/DC BuckDC/DC BuckDC/DC BuckLDOLDOLDORIAA PreampRIAA PreampRIAA PreampAudio CodecAudio CodecAudio CodecHVPAKHVPAKHVPAKSheet.259MCUMCUMCUVddVddVddADCADCADCGPIOGPIOGPIOGPIOGPIOGPIOGPIOGPIOGPIOPWMPWMPWMSCI/I2CSCI/I2CSCI/I2CSCI/UARTSCI/UARTSCI/UARTADCADCADC GPIOGPIOGPIO SPI/I2CSPI/I2CSPI/I2CUSBUSBUSBRCA OUTRCA OUTRCA OUT

MCU

RA Arm Cortex-M MCUs

DC/DC Buck

Buck Regulators (Integrated FETs)

LDO

Linear Regulators (LDO)

RIAA Preamp

Precision Op Amps (Vos <1mV)

Audio Codec

Audio Codecs

IPS

Inductive Position Sensors

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