EP#76: The Greek Tragedy of ADCs

The Greek Tragedy of ADCs

• Parker
  • With the success of the Raspberry Pi Compute Module LVDS test board. I started putting together the PinHeck REV8 board
  • More Python and OpenCV work (fun!)
    • Have the webcam taking pictures
    • Auto Crops and records all the images of parts
    • Looking into a higher resolution camera, more info on that later
• Stephen
  • Parts for the filter finally shipped!
  • Started putting together the boards
    • Like the multi colored jumpers
    • Veroboard - Strip Board Mouser Part Number 854-ST2
    • 80 x 100 mm with mounting holes
    • Use a 7/32" drill bit and a jeweler's drill to cut traces and brillow pad to clean up
  • Going to add a tube preamp to the synth output
    • Already have the preamp built. Just need to connect it.
    • Schematic
  • Tritrix speakers and the nutube amp.
    • Kicking up the nutube amp again
    • The speakers are almost built just need to paint and finish
    • 3d printed a plate for soldering the crossover to
• Pick Of the Week (POW)
  • Nuvoton NAU7802 - found on the Nice Chips Subreddit
    • Precision low-power 24-bit ADC , with an onboard low-noise PGA, onboard oscillator, and a precision 24-bit sigma-delta ADC . Capable of up to 23-bit ENOB (Effective Number Of Bits) performance.
    • SOP-16 or DIP-16
    • I2C
    • $2.22 in singles
    • Gotcha @10SPS, PGA=1
• Rapid Fire Opinion (RFO)
  • At Last, (Almost) A Cellphone With No Batteries! - HackADay
    • University of Washington
    • The first-ever battery free cell phone, able to make calls by scavenging ambient power.
    • Not really a cellphone. Its really a remote handset for a base station.
    • 3.5 microwatts and transmits 31 ft away.
  • Evaluation boards for USB type-C power delivery - Electronics Weekly
    • Rohm has announced USB Power Delivery (USBPD) transmitter/receiver evaluation boards.
    • 15 to 100W