Class D - DSP Amplifier PCB Design
Budget: £75 – £150 GBP
I need a medium-sized Class D DSP amplifier designed for audio playback on Studio Monitors. The PCB will support:
DSP Features:
- Room correction
- Phase alignment
- Preset sound signature profiles
I/O Features:
- XLR Combo for Balanced an Unbalanced input
- Toslink Rx and Tx for input and daisychain
Main Features:
- ADC supplied by Texas Instruments PCM4201
- DSP supplied by Analog Devices ADAU1452
- DAC supplied by AKM AK4454 for a 3-Way output
- Class D Amplification supplied by 2x Texas Instrument TPA3251 for 1 dual BTL and 1 PBTL PFFB opeartion
- Micro Controllers by Atmel ATtiny25/85, 25 for Selfboot and 85 for push button/LED control (DSP preset toggle with colour coded LED, LED brightness control)
Ideal skills and experience:
- Experience in designing Class D amplifiers
- Proficiency in SigmaStudio and KiCad
- Proficiency in multilayer PCB design
- PCB layout design for medium-sized audio systems
- Attention to detail and ability to adhere to design rules
The schematics are prepared in KiCad (will require verification of validity), components have ben pre-selected from Wurth (any generic components should be switched out for Wurth components).
Please provide samples of previous work and relevant experience.
Full schematics will be provided to the successful applicant.
DSP Features:
- Room correction
- Phase alignment
- Preset sound signature profiles
I/O Features:
- XLR Combo for Balanced an Unbalanced input
- Toslink Rx and Tx for input and daisychain
Main Features:
- ADC supplied by Texas Instruments PCM4201
- DSP supplied by Analog Devices ADAU1452
- DAC supplied by AKM AK4454 for a 3-Way output
- Class D Amplification supplied by 2x Texas Instrument TPA3251 for 1 dual BTL and 1 PBTL PFFB opeartion
- Micro Controllers by Atmel ATtiny25/85, 25 for Selfboot and 85 for push button/LED control (DSP preset toggle with colour coded LED, LED brightness control)
Ideal skills and experience:
- Experience in designing Class D amplifiers
- Proficiency in SigmaStudio and KiCad
- Proficiency in multilayer PCB design
- PCB layout design for medium-sized audio systems
- Attention to detail and ability to adhere to design rules
The schematics are prepared in KiCad (will require verification of validity), components have ben pre-selected from Wurth (any generic components should be switched out for Wurth components).
Please provide samples of previous work and relevant experience.
Full schematics will be provided to the successful applicant.