JAJSVE4 September 2024 DDS39RF10 , DDS39RFS10
PRODUCTION DATA
The following sub-sections depict each output format, showing how samples and tail bits are mapped to the lanes. Any lanes that are not shown in the output format tables are unused. Each table depicts exactly one frame. Tail bits are discarded and ignored by the transport layer. All diagrams are with respect to the logical lane numbers which can be arbitrarily mapped to the external physical lanes using LANE_SELn.
Notation | Description |
---|---|
T | Tail bits (used for some 12-bit modes) |
CH0_I[n] | In-Phase samples for channel 0. Can also be considered as “channel A” when the input isn’t considered to be complex data. |
CH0_Q[n] | Quadrature samples for channel 0. Can also be considered as “channel B” when the input isn’t considered to be complex data. |
CH1_I[n] | In-Phase samples for channel 1. |
CH1_Q[n] | Quadrature samples for channel 1. |
CH2_I[n] | In-Phase samples for channel 2. |
CH2_Q[n] | Quadrature samples for channel 2. |
CH3_I[n] | In-Phase samples for channel 3. |
CH3_Q[n] | Quadrature samples for channel 3. |
In all of the above notations, n indicates the sample number. Some JESD204C modes have S=1 (one sample per stream per frame). In those cases, “[n]” is omitted in the descriptions.