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BQ500212A: Gate signal

Part Number: BQ500212A

Dear Ti support team,

I made a transmitter circuit with bq500212a. When I supply 5V to the system,and LDO gives the bq500212a a 3.3V.

But I only get some strange gate signal as attached. Upper trace is the 3.3V from LDO, the bottom is PWMA, and PWMB have no signal at all. (I have not yet apply the receiver side )

I wonder this is due to my layout technique problem or simply problem in designing schematic. I have some question which you may help, please.

1. If I do not use the snooze and sleep feature, I can simply leave them open, right? Will it affect the analog and digital ping?

2. For pin 1, peak detection. As I saw it is DNP in the test report tidu719, does it mean to leave it open or just short the resistor listed "DNP"

3. For separation of AGND with DGND, will it be a problem if I connect all the ground to the AGND as in the report.

4. I will really appreciate if you can have a look to the attached schematic. Thank you very much.

Thanks and Best Regards,

Calvin

IPT-qi.1.0.pdf