JAJSCV8B May 2016 – December 2021 ADC32RF80 , ADC32RF83
PRODUCTION DATA
The ADC32RF8x supports device subclass 1 with a maximum output data rate of 12.5 Gbps for each serial transmitter.
An external SYSREF signal is used to align all internal clock phases and the local multiframe clock to a specific sampling clock edge. This alignment allows synchronization of multiple devices in a system and minimizes timing and alignment uncertainty. The SYNCB input is used to control the JESD204B SerDes blocks, as shown in Figure 8-53.
Depending on the ADC sampling rate, the JESD204B output interface can be operated with one, two, or four lanes per ADC channel. The JESD204B setup and configuration of the frame assembly parameters is controlled through the SPI interface.
The JESD204B transmitter block consists of the transport layer, the data scrambler, and the link layer, as shown in Figure 8-54. The transport layer maps the ADC output data into the selected JESD204B frame data format and manages if the ADC output data or test patterns are transmitted. The link layer performs the 8b, 10b data encoding as well as the synchronization and initial lane alignment using the SYNC input signal. Optionally, data from the transport layer can be scrambled.