Audiophile, High Quality T-DAC, RPi-DAC

Please, see: It's now Durio Sound

ORDER @ Gravitech             Forum    Lyrebird    FAQ      Legal

Overview Schematics RPi-DAC-RCA+ Raspberry-Pi RPi-DAC-Dual Home RPi-DAC-SPDIF RPi-DAC-FPGA RPi-DAC-IF Order
RPi-DAC-SPS_Spot

RPI-DAC Switched Power Supply (SPS)

  • 4x LMZ14202Hi [1], integrated inductor
  • as Switched Power Supply (SPS)
  • powering directly the RPi - no need for USB power supply
  • each rail with max. 2A
  • no heat sink needed
  • 4x Schottky bridge rectifiers, 2A
  • same size PCB (1:1): double layer, both sided SMD equipped, directly stackable with PRi-DAC
  • RPi-DAC mounting holes
  • version with onboard PCB transformer 50VA

Schematics

RPi-DAC-SPS

PCB - Top

RPi-DAC-SPS PCB Top

PCB - Bottom

RPi-DAC-SPS PCB Bottom

Assembling

RPi SPS solder instructions (pdf, 395KB)

It seems to have a PDF error (symbolIMT bad/BBox) - please ignore

Bill Of Materials (BOM)

RPi-DAC-SPS BOM (pdf, 54KB)

Design files and docs

BOM_RPi-DAC_SPS.pdf (75K)

RPi-SPS_solder.pdf (396K)

RPi-DAC_SPS.zip (35K) ExpressPCB file (ZIP)

RPi-SPS_Trafo_solder.pdf (325K) (with Toroid transformer)

RPi-DAC_SPS_trafo.zip (37K) ExpressPCB file (ZIP)

Pictures
RPi-DAC-SPS_PC_top RPi-DAC-SPS_PCB_bottom RPi-DAC-SPS_stack RPi-DAC-SPS_stack RPi-DAC-SPS_side RPi-DAC-SPS_stack
RPi-DAC-SPS_top RPi-DAC-SPS_bottom
RPi-DAC-SPS_transformer_top RPi-DAC-SPS_with_transformer_50VA RPi-DAC-SPS_bottom RPi-DAC-SPS 100VA Toroid Transformer RPi-DAC-SPS 100VA Toroid Transformer

References

[1] see detailed circuit datasheets of original manufacturers