Texas Instruments ADC12DJ5200RF, Руководство пользователя

Страница: 17 / 31

17 SLAU640 – April 2019
Submit Documentation Feedback
Copyright © 2019, Texas Instruments Incorporated
Device Configuration
Chapter 4
SLAU640 – April 2019
Device Configuration
The ADC device is programmable through the serial programming interface (SPI) bus accessible through
the FTDI USB-to-SPI converter located on the EVM. A GUI is provided to write instructions on the bus and
program the registers of the ADC device.
For more information about the registers in the ADC device, see the ADC12DJ5200RF device data sheet .
4.1 Supported JESD204C Device Features
The ADC device supports some configuration of the JESD204C interface. Due to limitations in the
TSW14J57EVM firmware, all JESD204C link features of the ADC device are not supported.
Table 4-1 lists
the supported and non-supported features.
(1)
Dependent on bypass or decimation mode and output rate selection. Always disable the JESD204 block before changing any of
the JESD204C settings. Once the settings are changed, re-enable the JESD204 block.
Table 4-1. Supported and Non-Supported Features of the JESD204C Device
JESD204C Feature Supported by ADC Device Supported by TSW14J57EVM Supported by TSW14J58EVM
Number of lanes per link
(L)
L = 1, 2, 3, 4, 6, 8
(1)
L = 1, 2, 3, 4, 6, 8 supported L = 1, 2, 3, 4, 6, 8 supported
Total number of lanes
active
2, 4, 6, 8, 12, 16 2, 4, 6, 8, 12, 16 2, 4, 6, 8, 12, 16
Number of frames per
multiframe (K) K
min
= 3–256,
(1)
K
max
= 256, K
step
= 1 or 2
Most values of K supported,
constrained by requirement that
K × F = 4
n
Most values of K supported,
constrained by requirement that
K × F = 4
n
Scrambling Supported Supported Supported
Test patterns
PRBS7, PRBS9, PRBS15, PBRS23,
PRBS31, Ramp, Transport Layer test,
D21.5, K28.5, Repeat ILA, Modified
RPAT, Serial Out 0, Serial Out 1,
Clock test, ADC Test Pattern
(1)
ILA, Ramp, Long/Short Transport ILA, Ramp, Long/Short Transport
Speed Lane rates from 0.8 to 17.12 Gbps
(1)
Lane rates from 2 to 15 Gbps
ƒ
(SAMPLE)
parameter must be properly
set in HSDC Pro GUI.
Lane rates from 0.6 to 17.16Gbps
ƒ
(SAMPLE)
parameter must be properly
set in HSDC Pro GUI.
4.2 Tab Organization
Control of the ADC device features are available in the EVM, Control, JESD204C, NCO Configuration
tabs.