This document describes the evaluation board for the AD9276 and AD9277, which provides all the features including SPI and alternate clock options, internal and external reference options, and VisualAnalog and SPI Controller software interfaces.
This document provides a user guide for the evaluation board designed for the AD9276 and AD9277 Octal LNA/VGA/AAF/12-/14-Bit ADCs and CW I/Q Demodulators. It details the necessary equipment, typical measurement setups, and the support circuitry required to operate these devices in various modes.
The guide covers hardware configuration, including power supply requirements (switching and linear), input signal specifications, and output evaluation methods. It also explains default operation settings, jumper selection for clock sources and gain control, and procedures for using the VisualAnalog SPI Controller software.
| Device Type | Octal LNA/VGA/AAF/12-/14-Bit ADCs and CW I/Q Demodulators |
|---|---|
| Analog Input Impedance | 50 Ω |
| Input Bandwidth | 18 MHz |
| VREF Default Setting | 1.0 V |
| ADC Full-Scale Range (Default) | 2.0 V p-p |
The required equipment includes an analog signal source, antialiasing filter, switching power supplies (6.0 V, 2.5 A), a linear bench top dc voltage source, and a PC running Windows.
The VisualAnalog SPI Controller software is required for interfacing with the AD9276 and AD9277.