CD-700-SYNCE-25M0000000 Datasheet, PDF (8/11 Pages) Vectron International, Inc – Complete VCXO Based Phase Lock Loop

Application Circuits
The CD-700 includes a phase detector, op-amp, and a VCXO with an associated divideby function. It’s primary function is to recover
a clock and align it with the original NRZ (non return to zero) data pattern, but as a drop-in PLL, it is commonly used for frequency
translation and to clean a jittered clock signal. In addition to its’exceptional functionality, the CD-700 is extremely flexible as the
loop filter can be tailored to the application and additional external divide-by circuitry extends the functionality.
The above circuit has a 1 kHz loop bandwidth.
Figure 8. 25 MHz to 25 MHz Jitter Attenuation/Clock Smoothing
Page 8 of 11
Figure 9. Typical Phase Noise Performance for CD-700-SYNCE-25M0000000
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Rev: 15Dec2009