I just finished building a frequency synthesizer with the MAX038 waveform generator from MAXIM, you can download the datasheet here: MAX038 High-Frequency Waveform Generator. My circuit is a copy of the high frequency waveform generator in the datasheet, with a 16F877 PIC controlling the device.
Below you can see some pictures of my design (click on the picture to enlarge it):The main PCB, with MAX038 high frequency waveform generator, powersupply and 16F877 PIC controlling the frequency synthesizer. I have detected a small error in the PCB, pin 11 and 12 on the MAX038 IC has to be connected to ground.
Frequency synthesizer with MAX038 - [Link]