AD9548

RECOMMENDED FOR NEW DESIGNS

Quad/Octal Input Network Clock Generator/Synchronizer

Data Sheet (Rev. G) Product Selection Table

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Part Details

Supports Stratum2 stability in holdover mode
Supports reference switchover with phase build-out
Supports hitless reference switchover
Auto/manual holdover and reference switchover

4 pairs of reference input pins with each pair configurable as a single differential input or as 2 independent single-ended inputs
Input reference frequencies from 1 Hz to 750 MHz
Reference validation and frequency monitoring (1ppm)
Programmable input reference switchover priority
Please see data sheet for additional features.

Documentation

Frequently Asked Question 1

FAQ 03/03/2022

This is the most up-to-date revision of the Data Sheet.

Software Resources

Device Drivers 1

AD9548 Github Linux Driver Source Code NEW

Tools & Simulations

AD9548 IBIS Models 1

AD9548 (All Models/All Speed Grades)

Evaluation Kits

FPGA Mezzanine Card for Wireless Communications

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Features and Benefits

Includes schematics, layout, BOM, Gerber files, HDL, Linux^® drivers, IIO Oscilloscope, VisualANALOG
FMC-compatible form factor
Powered from FMC connector
Provides one channel of ADC and one channel of DAC with full synchronization capabilities

Product Details

This board is no longer available for ordering.

The AD-FMCOMMS1-EBZ high-speed analog module is designed to showcase the latest generation high-speed data converters. The AD-FMCOMMS1-EBZ provides the analog front-end for a wide range of compute-intensive FPGA-based radio applications.

The AD-FMCOMMS1-EBZ is an analog front end hardware platform that addresses a broad range of research, academic, industrial and defense applications. The AD-FMCOMMS1-EBZ enables RF applications from 400MHz to 4 GHz. The module is customizable to a wide range of frequencies by software without any hardware changes, providing options for GPS or IEEE 1588 Synchronization, and MIMO configurations.

When combined with the Xilinx ZYNQ^® Software-Defined Radio Kit, AD-FMCOMMS1-EBZ enables a variety of wireless communications functions at the physical layer, from baseband to RF. With up to 4 GB of flash storage space, 512 MB of RAM, Gigabit Ethernet interface (depending on the base platform) and a Linux image built specifically for the AD-FMCOMMS1-EBZ, you can get everything you need for a easy out of the box experience. The platform offers enough flexibility for many applications, and supports streaming data, and standard web interfaces to analyze transmitted RF data.

Applications

Electronic test and measurement equipment
General-purpose software radios
Radar systems
Ultra wideband satellite receivers
Point to point communication systems

Resources

AD-FMCOMMS1-EBZ User Guide

Software

IIO Oscilloscope Application

AD-FMCOMMS1-EBZ-Software

AD9548 Evaluation Board

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Features and Benefits

Simple power connection using 6 V wall adapter and onboard switching and LDO voltage regulators
Regulators easily bypassed for power measurements
8 ac-coupled SMA connectors for output
SMA connectors for
2 differential or 4 single-ended reference input
System clock input
On-board provisions for OCXO, crystal oscillator, or crystal
USB connection to PC
32-bit or 64-bit Windows-based evaluation software with simple graphical user interface
On-board PLL loop filter
Easy access to digital I/O and diagnostic signals via I/O header
Status LEDs for diagnostic signals

Product Details

The AD9548 is a very low noise DDS-based digital PLL clock synthesizer with up to eight reference inputs and up to eight outputs. The AD9548 features reference clock validation, automatic holdover, and hitless reference clock switching. The AD9548 is also capable of accepting a 1 pulse per second (pps) reference input clock. The AD9548 Revision E evaluation board is a compact, easy-to use platform for evaluating all features of the AD9548.