homemade si570 board controlled by atmega8 MCU 2nd (better) version

The SI570 (CMOS version) is a great chip which can generate virtually every frequency from 3.44 MHz to 160 MHz .
The generated frequencies are stable and solid (20ppm/C.)
The chip is programed via a i2c bus
5 registers must be filled for a new frequency
the only disadvantage is its high price i paid 18.50 € + shipping.
if some one knows a cheaper source please let me know...

Category:

Science & Technology

Tags:

• si570
• homebrew
• avr
• atmel
• atmega8
• radio
• ham
• microcontroler
• xtal
• xvo
• vco
• signal
• generator
• oscillator
• pll
• dss
• synthesizer

[MrMpalmer33]

That's the sort of thing I'm hoping to make eventually.

[ON1DQD]

where can we find the schematic diagram and code???