ZHCSGI8A April 2017 – October 2021 ADC12D1620QML-SP
PRODUCTION DATA
The ADC12D1620 can provide a test pattern at the four output buses, independent of the input signal, that aids in system debug. In test-pattern mode, the ADC is disengaged, and a test pattern generator is connected to the outputs, including ORI and ORQ. The test pattern output is the same in DES mode or non-DES mode. Each port is given a unique 12-bit word, alternating between 1's and 0's. When the device is programmed into the demux mode, the order of the test pattern is described in Table 7-2. If the I or Q channel is powered down, the test pattern is not output for that channel.
| TIME | Qd | Id | Q | I | ORQ | ORI | COMMENTS |
|---|---|---|---|---|---|---|---|
| T0 | 000h | 004h | 008h | 010h | 0b | 0b | Pattern Sequence n |
| T1 | FFFh | FFBh | FF7h | FEFh | 1b | 1b | |
| T2 | 000h | 004h | 008h | 010h | 0b | 0b | |
| T3 | FFFh | FFBh | FF7h | FEFh | 1b | 1b | |
| T4 | 000h | 004h | 008h | 010h | 0b | 0b | |
| T5 | 000h | 004h | 008h | 010h | 0b | 0b | Pattern Sequence n+1 |
| T6 | FFFh | FFBh | FF7h | FEFh | 1b | 1b | |
| T7 | 000h | 004h | 008h | 010h | 0b | 0b | |
| T8 | FFFh | FFBh | FF7h | FEFh | 1b | 1b | |
| T9 | 000h | 004h | 008h | 010h | 0b | 0b | |
| T10 | 000h | 004h | 008h | 010h | 0b | 0b | Pattern Sequence n+2 |
| T11 | FFFh | FFBh | FF7h | FEFh | 1b | 1b | |
| T12 | 000h | 004h | 008h | 010h | 0b | 0b | |
| T13 | ... | ... | ... | ... | ... | ... |
When the device is programmed into the non-demux mode, the test pattern’s order is described in Table 7-3.
| TIME | Q | I | ORQ | ORI | COMMENTS |
|---|---|---|---|---|---|
| T0 | 000h | 004h | 0b | 0b | Pattern Sequence n |
| T1 | 000h | 004h | 0b | 0b | |
| T2 | FFFh | FFBh | 1b | 1b | |
| T3 | FFFh | FFBh | 1b | 1b | |
| T4 | 000h | 004h | 0b | 0b | |
| T5 | FFFh | FFBh | 1b | 1b | |
| T6 | 000h | 004h | 0b | 0b | |
| T7 | FFFh | FFBh | 1b | 1b | |
| T8 | FFFh | FFBh | 1b | 1b | |
| T9 | FFFh | FFBh | 1b | 1b | |
| T10 | 000h | 004h | 0b | 0b | Pattern Sequence n+1 |
| T11 | 000h | 004h | 0b | 0b | |
| T12 | FFFh | FFBh | 1b | 1b | |
| T13 | FFFh | FFBh | 1b | 1b | |
| T14 | ... | ... | ... | ... |
| TIME | Qd | Id | Q | I | ORQ | ORI | COMMENTS |
|---|---|---|---|---|---|---|---|
| T0 | FF7h | FEFh | 008h | 010h | 1b | 1b | Pattern sequence n |
| T1 | FF7h | FEFh | 008h | 010h | 1b | 1b | |
| T2 | 008h | 010h | FF7h | FEFh | 1b | 1b | |
| T3 | 008h | 010h | FF7h | FEFh | 1b | 1b | |
| T4 | 008h | 010h | 008h | 010h | 0b | 0b | |
| T5 | FF7h | FEFh | 008h | 010h | 1b | 1b | Pattern sequence n+1 |
| T6 | FF7h | FEFh | 008h | 010h | 1b | 1b | |
| T7 | 008h | 010h | FF7h | FEFh | 1b | 1b | |
| T8 | 008h | 010h | FF7h | FEFh | 1b | 1b | |
| T9 | 008h | 010h | 008h | 010h | 0b | 0b | |
| T10 | FF7h | FEFh | 008h | 010h | 1b | 1b | Pattern sequence n+2 |
| T11 | FF7h | FEFh | 008h | 010h | 1b | 1b | |
| T12 | 008h | 010h | FF7h | FEFh | 1b | 1b | |
| T13 | ... | ... | ... | ... | ... | ... |
| TIME | Q | I | ORQ | ORI | COMMENTS |
|---|---|---|---|---|---|
| T0 | 008h | 010h | 0b | 0b | Pattern sequence n |
| T1 | FF7h | FEFh | 1b | 1b | |
| T2 | 008h | 010h | 0b | 0b | |
| T3 | FF7h | FEFh | 1b | 1b | |
| T4 | 008h | 010h | 0b | 0b | |
| T5 | 008h | 010h | 0b | 0b | Pattern sequence n+1 |
| T6 | FF7h | FEFh | 1b | 1b | |
| T7 | 008h | 010h | 0b | 0b | |
| T8 | FF7h | FEFh | 1b | 1b | |
| T9 | 008h | 010h | 0b | 0b | |
| T10 | 008h | 010h | 0b | 0b | Pattern sequence n+2 |
| T11 | FF7h | FEFh | 1b | 1b | |
| T12 | 008h | 010h | 0b | 0b | |
| T13 | FF7h | FEFh | 1b | 1b | |
| T14 | ... | ... | ... | ... |