JAJSCV8B May 2016 – December 2021 ADC32RF80 , ADC32RF83
PRODUCTION DATA
The steps in Table 9-1 are recommended as the power-up sequence when the ADC32RF8x is in the decimation-by-4 complex output mode.
STEP | DESCRIPTION | PAGE,REGISTER ADDRESS AND DATA | COMMENT |
1 |
Supply all supply voltages. There is no required power-supply sequence for the 1.15 V, 1.2 V, and 1.9 V supplies, and can be supplied in any order. |
— |
— |
2 | Provide the SYSREF signal. | — | — |
3 | Pulse a hardware reset (low-to-high-to-low) on pins 33 and 34. | — | — |
4 |
Write the register addresses described in the PowerUpConfigfile. |
Seethe files located in SBAA226 |
ThePower-up config file contains analog trim registers that are required for best performance of the ADC. Write these registers every time after power up. |
5 |
Write the register addresses mentioned in the ILConfigNyqX_ChA file, where X is the Nyquist zone. | Seethe files located in SBAA226 | Based on the signal band of interest, provide the Nyquist zone information to the device. |
6 |
Write the register addresses mentioned in the ILConfigNyqX_ChB file, where X is the Nyquist zone. | Seethe files located in SBAA226 | This step optimizes device’ performance by reducing interleaving mismatch errors. |
6.1 | Wait for 50 ms for the device to estimate the interleaving errors. | — | — |
7 |
Depending upon the Nyquist band of operation, choose and write the registers from the appropriate file, NLConfigNyqX_ChA, where X is the Nyquist zone. |
Seethe files located in SBAA226 |
Third-order nonlinearity of the device is optimized by this step for channel A. |
7.1 |
Depending upon the Nyquist band of operation, choose and write the registers from the appropriate file, NLConfigNyqX_ChB, where X is the Nyquist zone. |
Seethe files located in SBAA226 |
Third-order nonlinearity of the device is optimized by this step for channel B. |
8 |
Configure the JESD interface and DDC block by writing the registers mentioned in the DDCConfig file. | Seethe files located in SBAA226 | Determine the DDC and JESD interface LMFS options. Program these options in this step. |