JAJSH87D April 2015 – April 2019 ADS54J60
PRODUCTION DATA.
7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
0 | 0 | DECFIL MODE[3] | DECFIL EN | 0 | DECFIL MODE[2:0] | ||
W-0h | W-0h | R/W-0h | R/W-0h | W-0h | R/W-0h |
Bit | Field | Type | Reset | Description |
---|---|---|---|---|
7-6 | 0 | W | 0h | Must write 0 |
5 | DECFIL MODE[3] | R/W | 0h | This bit selects the decimation filter mode. Table 40 lists the bit settings.
The decimation filter control (DEC MODE EN, register 4Dh, bit 3) and decimation filter enable (DECFIL EN, register 41h, bit 4) must be enabled. |
4 | DECFIL EN | R/W | 0h | Enables the digital decimation filter
0 = Normal operation, full rate output 1 = Digital decimation enabled |
3 | 0 | W | 0h | Must write 0 |
2-0 | DECFIL MODE[2:0] | R/W | 0h | These bits select the decimation filter mode. Table 40 lists the bit settings.
The decimation filter control (DEC MODE EN, register 4Dh, bit 3) and decimation filter enable (DECFIL EN, register 41h, bit 4) must be enabled. |
BITS (5, 2-0) | FILTER MODE | DECIMATION |
---|---|---|
0000 | Band-pass filter centered on 3 × fS / 16 | 4X |
0100 | Band-pass filter centered on 5 × fS / 16 | 4X |
1000 | Band-pass filter centered on 1 × fS / 16 | 4X |
1100 | Band-pass filter centered on 7 × fS / 16 | 4X |
0010 | Low-pass filter | 2X |
0110 | High-pass filter | 2X |
0011 | Low-pass filter with fS / 4 mixer | 4X (IQ) |