Updated
12th July 2011SDR-Kits.net
Welcome - The PAOKLT Low Noise VFO Synthesized Kit
Updated
12th July 2011
News - SDR-Kits is now stocking the Si570DBA000107G CML up to 1417 MHz and the Si571CFC000107G CMOS Chips with FM Modulation input...
The "standalone"
PAOKLT VFO Synthesizer kit uses the Silicon Labs Si570 XO
Low
noise Synthesizer chip controlled by an Atmel Mega 88
Controller
with connections to an external 16 or 20 character x 2 lines LCD
Display and a 96 step rotary encoder for tuning.
Click here for Pricing and Ordering information shown below
New Updated V5.4 Kit Assembly manual published 29th November. New Drawings by PA0KLT. Please download!
Download PA0KLT Kit Assembly Manual V5.4 for new ISSUE 2 PCB for kits shipped after June 1st 2010
Download PA0KLT Kit Assembly Manual V4.4 or older ISSUE 1 PCB for kits shipped up to 31st May 2010
Datasheet for WBC4-1WLB transformer 2 MHz - 1000 MHz
Frequency coverage is from 3.45
MHz up to 1417 MHz, depending on the type of
Si570
device fitted. The minimum tuning step is selectable from 1
Hz, 10Hz, 100 Hz, 1kHz
upwards.
The
design offers a Smooth Tuning experience like in a high quality
Analogue VFO
There is no interference when the frequency of the
Si570 is tuned within
+/- 3500 ppm from last Coarse Frequency
command executed. Tuning
resolution is 96 steps for each turn of
the tuning control knob.
Kit suitable for constructors with some previous kit assembly experience. Some components like capacitors (0805mm) and Si570 are Surface Mount Devices
Up to 32 frequencies may be stored in Memory in two banks (Memory A and Memory B)
Power Supply voltage: 8-12V or from single +5V supply with modification
Current consumption 125mA (20mA drawn by LCD backlight)
Provision of RF output transformer options on PCB
Support industry standard LCD display 2 x16 to 2x20 characters
LCD module supplied has built-in backlight - size 73mm x 36mm
PCB size: 70mm x 34mm - Tin plated screen box available.
Firmware written in Assembler - supports Programmable IF Offset and Integer Frequency multiplication
Some
Applications
Local Oscillator Building Block
for home-
brew Receivers or Transceivers.
External Local Oscillator for stand SDR hardware Projects
Wide range Low Noise test
oscillator
output frequency programmable in steps
from 1 Hz.
upwards
Multiband QRP CW Transceiver
covering
3.5 MHz - 144 MHz with plug-in LPF
Kit Contents:
Complete
Kits will contain a quality double sided PCB, a programmed Atmel
ATMEGA88, pushbuttons,
rotary encoder, all connectors - LCD
display with backlight. Si570 chip will be supplied as ordered
(Si570 Chip not shown on photo)
PAOKLT Kit Pricing and Orders - see the WEBSHOP
Copyright notice: The PA0KLT
project design on this page is copyright 2008, 2009, 2010, 2011 by
Ton Blokker PA0KLT and SDR-Kits
Assembly Manual and Kit of parts
produced by SDR-Kits.net - Website Copyright 2008, 2009, 2010,
2011 by SDR-Kits.net