ADC08200EVM

具有内部采样保持功能的 ADC08200 8 位 200MSPS 低功耗 ADC 评估模块

Thisuser'sguidedescribesthefunctionanduseof theADC08xx0evaluationmodule(EVM). Includedin thisdocumentareaquick-startguide, instructionsforoptimizingevaluationresults, jumperandconnector descriptions,softwaredescription,andalternatehardwareconfigurations.

1 Overview

The ADC08xx0EVM is an evaluation module (EVM) designed to evaluate the ADC08xx0. The EVM provides simple and minimal external components to minimize system cost and power consumption. The following features apply to this EVM:

• 8-bit, low-cost, high-speed, CMOS interface ADC08xx0

• External clock for sample clocking with an option to add an onboard crystal oscillator

• Option to provide separate clocks to ADC and FPGA

• TPS7A47 user-programmable RF low-dropout (LDO) voltage regulator

• CDCV304 high-performance, low-skew, PCI_X-compliant clock buffer

• SN74AVC16244 Dynamic Output Control, low-noise 16-bit output buffer

The ADC08xx0EVM is designed to work seamlessly with the TSW1400EVM, TI’s CMOS and LVDS pattern generator and data-capture board, through the High-Speed Data Converter Pro Graphical User Interface (HSDC Pro GUI) software tool for high-speed data converter evaluation.

1.1 Required Hardware

The following equipment is included in the EVM evaluation kit:

• ADC08xx0EVM

• Standard banana jack power supply cables

The following list of equipment are items that are not included in the EVM evaluation kit but are items required for evaluation of this product in order to achieve the best performance:

• TSW1400EVM Data Capture Board, 5-V DC cable connector, and mini-USB cable

• Computer running Microsoft® Windows® 8, Windows 7, or Windows XP

• Onelow-noise signal generator. Recommendations:– RFgenerator, > +17 dBm, <–40 dBc harmonics, < 500 fsec jitter 20 kHz–20 MHz, 1-MHz to 2-GHz

frequency range– Examples: TSW2170EVM, HP HP8644B, Rohde & Schwarz SMA100A

• DCpower supply. Recommendations:– DCPowerSupply, 0-6 VDC, > 3 A– Examples: Agilent E363A or equivalent

• Bandpass filter for desired analog input. Recommendations:– Filter, ≥ 60-dB harmonic attenuation, ≤ 5% bandwidth, > +18-dBm power, < 5-dB insertion loss– Examples: Trilithic 5VH-series Tunable BPF, K&L BT-series Tunable BPF, TTE KC6 or KC7-series

Fixed BPF

• Signal path cables, SMA or BNC with BNC-to-SMA adapters

1.2 Required Software

The following software is required to operate the TSW1400EVM and is available online. See References, Section 1.4 for links.

• High-Speed Data Converter Pro software

1.3 Evaluation Board Feature Identification Summary

The EVM features are labeled in Figure 1.

2 Quick-Start Guide

This section guides the user through the EVM test procedure to obtain a valid data capture from the ADC08xx0EVM using the TSW1400EVM capture card. This should be the starting point for all evaluations.

3 Optimizing Evaluation Results

This section assists the user in optimizing the performance during evaluation of the product.

4 Alternate Hardware Configurations

This section describes alternate hardware configurations in order to achieve better results or to more closely mimic the system configuration.