SBASAQ6A July 2024 – November 2024 ADS9811 , ADS9813
PRODUCTION DATA
As shown in Table 6-13, initialize the ADS9813 with a sequence of register writes after device power-up or reset. Connect a free-running sampling clock to the ADC before executing the initialization sequence. The ADS9813 registers are initialized with the default value after the initialization sequence is complete.
STEP | REGISTER | COMMENT | ||
---|---|---|---|---|
BANK | ADDRESS | VALUE[15:0] | ||
1 | 0 | 0x04 | 0x000B | INIT_1 configured |
2 | 0 | 0x03 | 0x0010 | Select register bank 2 |
3 | 2 | 0x92 | 0x0002 | INIT_2 configured |
3 | 2 | 0xC5 | 0x0604 | Initialize PGA and conifgure INIT_3 |
As shown in Table 6-14, change the default settings of the ADS9813 for the user-defined configuration. Changes to the analog inputs changes the analog input range, bandwidth, and common-mode voltage range. Changes to the data interface change the number of output lanes (either single or double data rate).
STEP | REGISTER | COMMENT | ||
---|---|---|---|---|
BANK | ADDRESS | VALUE[15:0] | ||
1 | 1 | 0xC1 | User defined | Configure data interface and select internal or external reference |
2 | 1 | 0xC2 and 0xC3 | User defined | Select analog input ranges, see Table 6-1 |
3 | 1 | 0xC0 | User defined | Select analog input bandwidth, see Table 6-2 |
4 | 1 | 0xC4 and 0xC5 | User defined | Select common-mode range for analog inputs, see Table 6-3 and Table 6-4 |