Texas Instruments TSW14J56 User Manual

TSW14J56 JESD204B High-Speed Data Capture and
The TI TSW14J56 evaluation module (EVM) is a next generation pattern generator and data capture card
used to evaluate performances of the new TI JESD204B device family of high-speed analog-to-digital
converters (ADC) and digital-to-analog converters (DAC). For an ADC, by capturing the sampled data over
a JESD204B interface when using a high-quality, low-jitter clock, and a high-quality input frequency, the
TSW14J56 can be used to demonstrate datasheet performance specifications. Using Altera JESD204B IP
cores, the TSW14J56 can be dynamically configurable to support lane speeds from 600 Mbps to 12.5
Gbps, from 1 to 8 lanes, 1 to 16 converters, and 1 to 4 octets per frame with one firmware build. Together
with the accompanying
system that captures and evaluates data samples from ADC EVMs and generates and sends desired test
patterns to DAC EVMs.
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1 Functionality
The TSW14J56EVM has a single industry standard FMC connector that interfaces directly with TI
JESD204B ADC and DAC EVM's. When used with an ADC EVM, high-speed serial data is captured, de-
serialized and formatted by an Altera Arria V GZ FPGA. The data is then stored into an external DDR3
memory bank, enabling the TSW14J56 to store up to 2G 16-bit data samples. To acquire data on a host
PC, the FPGA reads the data from memory and transmits it on a high speed 32 bit parallel interface. An
onboard high-speed USB 3.0 to parallel converter bridges the FPGA interface to the host PC and GUI.
In pattern generator mode, the TSW14J56 generates desired test patterns for DAC EVMs under test.
These patterns are sent from the host PC over the USB interface to the TSW14J56. The FPGA stores the
data received into the board DDR3 memory module. The data from memory is then read by the FPGA and
transmitted to a DAC EVM across the JESD204B interface connector. The board contains a 100-MHz
oscillator used to generate the DDR3 reference clock and a option for a 10-MHz oscillator for general
purpose use. Figure 1
SLWU086C – November 2013 – Revised January 2016
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Pattern Generator Card User's Guide
High-Speed Data Converter Pro Graphic User Interface
shows the TI ADS58J63EVM plugged into the TSW14J56EVM.
TSW14J56 JESD204B High-Speed Data Capture and Pattern Generator
Copyright © 2013–2016, Texas Instruments Incorporated
SLWU086C – November 2013 – Revised January 2016
User's Guide
(GUI), it is a complete
1
Card User's Guide