HF2LI-PLL  Dual Phase-Locked Loop Option
Key Features
- Dual programmable digital PLL
 - PLL bandwidth programmable over a wide range
 - PLL Advisor (for adjustment of target bandwidth)
 - Configurable phase detector and PID controller
 - Best-in-class harmonic input and harmonic output distortion
 - Output of frequency deviation on auxiliary output connectors
 - Fully integrated with dual-unit lock-in amplifier