DS90UB940-Q1: SCH review

Hello Amelie,

here is my feedback to the 940N Schematic review:

- It looks like on all VDDxx pins, the 10uF capacitors are missing. Please refer to figure 38.
- Also make sure that on each VDDxx pin to have a capacitor between 10nF to 100nF directly on each pin.Please refer to figure 38.
- On CAP_I2S pins you just need 1 capacitor with a value between 10nF to 100nF. Please refer to figure 38.
- BISTEN and BISTC pins, If unused, tie to an external pulldown.
- Please make sure to maintain the correct power-up sequence and timing parameters, as per d/s section "9.1 Power-Up Requirements and PDB Pin".
- All GPIOs, If unused, tie to an external pulldown.
- CMLOUT pins, before terminating them, each pin shall be connected through an AC-Coupling capacitor. Please refer to d/s figure 38.
- For MODE_SEL0 & 1, please refer to table 7 and Table 8.
- Pins 49, 64 are reserved pins. May left as No Connect.