Analog Devices AD9641 Evaluation Board AD9641-80KITZ AD9641-80KITZ Hoja De Datos
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AD9641-80KITZ
Evaluation Board User Guide
UG-294
Rev. B | Page 7 of 48
JESD204A Output Modes
evaluation platform supports
several JESD204A output modes (see Table 2 for typical configurations). Each mode requires a different FPGA configuration to capture
data properly. Output Configuration A in Table 2 is the configuration for the default mode for the
data properly. Output Configuration A in Table 2 is the configuration for the default mode for the
, and it consists of two
converters, each of which has two links and one output lane.
Table 1.
JESD204A Configuration
Output
Configuration
Configuration
Configuration
JESD204A
Link Settings
Link Settings
Comments
A
One converter,
One JESD204A link,
One lane per link
One lane per link
M = 1; L = 1; S = 1; F = 2;
N’ = 16; CF = 0; CS = 0, 1, 2;
K = N/A; SCR = 0, 1; HD = 0
K = N/A; SCR = 0, 1; HD = 0
Maximum sample rate =
80 MSPS or 155 MSPS
Table 2.
JESD204A Typical Configurations (Enabled Through SPI Register 0x5E, Bits[2:0])
Output
Configuration
Configuration
Configuration
JESD204A
Link A Settings
Link A Settings
JESD204A
Link B Settings
Link B Settings
Comments
A
Two converters,
two JESD204A links,
two JESD204A links,
one lane per link
M = 1; L = 1; S = 1; F = 2;
N’ = 16; CF = 0; CS = 0, 1, 2;
N’ = 16; CF = 0; CS = 0, 1, 2;
K = N/A; SCR = 0, 1; HD = 0
M = 1; L = 1; S = 1; F = 2;
N’ = 16; CF = 0; CS = 0, 1, 2;
N’ = 16; CF = 0; CS = 0, 1, 2;
K = N/A; SCR = 0, 1; HD = 0
Maximum sample rate =
80 MSPS
80 MSPS
B
Two converters,
one JESD204A link,
two lanes per link
two lanes per link
M = 2; L = 2; S = 1; F = 2;
N’ = 16; CF = 0; CS = 0, 1, 2;
K = see the specifications
K = see the specifications
in the
data sheet;
SCR = 0, 1; HD = 0
Disabled
Maximum sample rate =
80 MSPS
This configuration is required for
applications needing two
aligned samples (that is, I/Q
This configuration is required for
applications needing two
aligned samples (that is, I/Q
applications)
C
Two converters,
one JESD204A link,
one lane per link
one lane per link
M = 2; L = 1; S = 1; F = 4;
data sheet;
SCR = 0, 1; HD = 0
Disabled
Maximum sample rate =
80 MSPS