Introduction - MOGlabs ARF021 Manual

1. Introduction

Front Panel Display & Control
Ethernet
10/100
Micro
controller
USB
RAM table
memory
External
Oscillator
The MOGL abs ARF/XRF
digital synthesizer (DDS) sources, each with 4 W amplifier. The
frequency, amplitude and phase of each output is software-controlled
via a microcontroller and
enables direct control of the frequency, amplitude and phase of the
signals, which can be adjusted in real-time using the front-panel
RF
control knobs, or via a scripting language over ethernet or
parameters can be defined in a lookup table (loaded via ethernet
RF
or USB ) to enable complex sequences with very fast transitions.
The block diagram below shows the key components. The
nal output from each
RF on/o
FPGA
Fast RAM
table memory
Clock
Local
consists of two independent
(field programmable gate array). This
FPGA
DDS is low-pass filtered, pre-amplified, and
(2 per channel)
DAC
Output
1
AD9910 direct
USB
RF
DDS + RF
RF OUT
AD9910 DDS
LP lter
RF switch
RF ampli er
Power detector
RF on/o
A/D
7-pole lters
10MHz
4x MOD IN
. The
sig-