Thursday, December 21, 2006

Z8 and LCD draft

I completed my first draft schematic for the Z8, LCD and buttons.


Problems:


  1. No footprint for the z8. The datasheet does not provide any "recommended land patterns" - although it has the physical dimensions.

  2. The buttons used have a two pin footprint - not something i have seen before. (Normally they have 4 pins).

  3. The Z8 is directly powered from the 3.3V rails (from the smps) without any additional caps.

  4. The LCD module is 16x2 - but I want a 40x4. Unfortunately the 40x4 has no footprints and no pinouts in the datasheet.

  5. LCD is LED backlight- I wanted an EL.

  6. the z8 has not been interfaced to the FPGA and the attenuator yet.



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