SLVSDR3C may 2018 – may 2023 ADC12DL3200
PRODUCTION DATA
The strobe signals can also be output over the LSB of the digital sample for each LVDS bus. During transmission of the strobe the LSB of the sample is replaced by the strobe signal and, therefore, the digital sample is only 11 bits wide resulting in a small loss in ENOB. When the strobe is disabled, all 12 bits of the digital sample are sent across the interface for full performance. The strobe can be enabled periodically, allowing a tradeoff in ENOB and robustness and reducing the interface width. Enable this mode by setting SYNC_PAT in the PAT_SEL register to 0x2. Transmission of the strobe is controlled by the source selected by SYNC_SEL in the LCTRL register. The SYNCSE pin controls transmission of the strobe by default. Table 7-7 describes the strobe output when the LSB is replaced with the strobe signal data when SYNC is asserted. Table 7-8 describes the strobe output when the active pattern is used ( SYNC de-asserted).
FRAME SAMPLE NUMBER (UI) | 1 FRAME (LFRAME = 0x08) | |||||||
---|---|---|---|---|---|---|---|---|
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
Dx[11:1] | S0[11:1] | S1[11:1] | S2[11:1] | S3[11:1] | S4[11:1] | S5[11:1] | S6[11:1] | S7[11:1] |
Dx0 (LSB) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
FRAME SAMPLE NUMBER (UI) | 1 FRAME (LFRAME = 0x08) | |||||||
---|---|---|---|---|---|---|---|---|
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
Dx[11:1] | S0[11:1] | S1[11:1] | S2[11:1] | S3[11:1] | S4[11:1] | S5[11:1] | S6[11:1] | S7[11:1] |
Dx0 (LSB) | S0[0] | S1[0] | S2[0] | S3[0] | S4[0] | S5[0] | S6[0] | S7[0] |