5
SLAU796 – July 2020
Copyright © 2020, Texas Instruments Incorporated
Introduction
Chapter 1
SLAU796 – July 2020
Introduction
The TSW12QJ1600EVM is an evaluation board used to evaluate ADC12QJ1600 analog-to-digital
converters (ADC) from Texas Instruments with different front end options. The ADC12QJ1600 is a quad
channel, 12-bit ADC, capable of operating at sampling rates up to 1.6 Giga- samples per second (GSPS)
with four analog input channels. This design has two ADC12QJ1600 devices on the same PCB, this
design can be used to demonstrate multiple ADC synchronization, deterministic latency and test the
performance of the ADC with various front end options (AC coupled transformer, DC coupled option with
LMH32401) The design also demonstrate how clocking scheme can be simplified by daisy-chaining PLL
refout from one ADC to other ADC. Eliminating the need to clock distribution chip usually needed by JESD
devices. The TSW12QJ1600EVM output data is transmitted over a standard JESD204C high-speed serial
interface. This evaluation board also includes the following important features
•
Transformer-coupled signal input network allowing a single-ended signal source from 10 MHz to
4 GHz. Option to bypass the transformer and use DC coupled differential inputs
•
LM95233 temperature sensor
•
High-speed serial data output over a High Pin Count FMC interface connector
NOTE:
To improve signal routing quality, serial lanes are mapped differently with respect to the
standard FMC VITA-57 signal mapping.
•
Device register programming through USB connector and FTDI USB-to-SPI bus translator with an
option to program through the FMC+ connector
Figure 1-1. EVM Orientation
The digital data from the TSW12QJ1600EVM board is quickly and easily captured with the
TSW14J58EVM data capture boards.
