AD9528 Overview
The AD9528 is a two-stage PLL with an integrated JESD204B/ JESD204C SYSREF generator for multiple device synchronization. The first stage phase-locked loop (PLL) (PLL1) provides input reference conditioning by reducing the jitter present on a system clock. The second stage PLL (PLL2) provides high frequency clocks that achieve low integrated jitter as well as low broadband noise from the clock output drivers.
AD9528 Key Features
- 14 outputs configurable for HSTL or LVDS
- Maximum output frequency
- 6 outputs up to 1.25 GHz
- 8 outputs up to 1 GHz
- Dependent on the voltage controlled crystal oscillator (VCXO) frequency accuracy (start-up frequency accuracy: <±100 ppm
- Dedicated 8-bit dividers on each output
- Coarse delay: 63 steps at 1/2 the period of the RF VCO
- Fine delay: 15 steps of 31 ps resolution
- Typical output to output skew: 20 ps
- Duty cycle correction for odd divider settings