ZHCSDS3C May 2015 – April 2018 ADS52J90
PRODUCTION DATA.
The data from two adjacent ADCs (ADC1 and ADC2, ADC3 and ADC4, and so forth) can be averaged by enabling the AVG_EN bit. A scenario where this feature can be useful is where the same analog input is fed to two channels and their outputs are averaged to achieve approximately a 3-dB improvement in SNR. The mapping of DIGOUT to the ADC data is shown in Table 8.
DIGOUT | RELATIONSHIP TO ADC DATA | LVDS PAIR THE DATA COME OUT ON | |
---|---|---|---|
1X DATA RATE MODE | 2X DATA RATE MODE | ||
DIGOUT1 | Average of ADC1 and ADC2 | DOUT1 | DOUT1 |
DIGOUT2 | Average of ADC3 and ADC4 | DOUT2 | |
DIGOUT3 | Average of ADC5 and ADC6 | DOUT3 | DOUT2 |
DIGOUT4 | Average of ADC7 and ADC8 | DOUT4 | |
DIGOUT5 | Ignore | — | — |
DIGOUT6 | Ignore | — | — |
DIGOUT7 | Ignore | — | — |
DIGOUT8 | Ignore | — | — |
DIGOUT9 | Average of ADC9 and ADC10 | DOUT9 | DOUT9 |
DIGOUT10 | Average of ADC11 and ADC12 | DOUT10 | |
DIGOUT11 | Average of ADC13 and ADC14 | DOUT11 | DOUT10 |
DIGOUT12 | Average of ADC15 and ADC16 | DOUT12 | |
DIGOUT13 | Ignore | — | — |
DIGOUT14 | Ignore | — | — |
DIGOUT15 | Ignore | — | — |
DIGOUT16 | Ignore | — | — |