SLOS982C August 2017 – April 2018 TAS5755M
PRODUCTION DATA.
Use the following sequence to power up and initialize the device: | ||||
1. | Hold all digital inputs low and ramp up AVDD/DVDD to at least 3 V. | |||
2. | Initialize digital inputs and PVDD supply as follows: | |||
• | Drive RESET = 0, PDN = 1, and other digital inputs to their desired state while ensuring that all are never more than 2.5 V above AVDD/DVDD. Wait at least 100 µs, drive RESET = 1, and wait at least another 13.5 ms. | |||
• | Ramp up PVDD to at least 8 V while ensuring that it remains below 6 V for at least 100 µs after AVDD/DVDD reaches 3 V. Then wait at least another 10 µs. | |||
3. | Trim oscillator (write 0x00 to register 0x1B) and wait at least 50 ms. | |||
4. | Configure the DAP via I2C, see TAS5755EVM Evaluation Module User's Guide (SLOU481A) for typical values. | |||
5. | Configure remaining registers. | |||
6. | Exit shutdown (sequence defined inShutdown Sequence). |