• Ultra low additive jitter of 40 fs RMS
• Accepts differential or single-ended input: LVPECL, LVDS, CML, HCSL, LVCMOS
• On-chip input termination resistors and biasing for AC coupled inputs
• Four precision LVPECL outputs. Operating frequency up to 750 MHz.
• Option for 2.5 V or 3.3 V power supply with core current consumption of 62 mA
• On-chip Low Drop Out (LDO) Regulator for superior power supply rejection

The ZL40203 is an LVPECL clock fan out buffer with four identical output clock drivers capable of operating at frequencies up to 750MHz.

The ZL40203 provides an internal input termination network for DC and AC coupled inputs; optional input biasing for AC coupled inputs is also provided. The ZL40203 can accept DC or AC coupled LVPECL and LVDS input signals, AC coupled CML or HCSL input signals, and single ended signals. A pin compatible device with external termination is also available.

The ZL40203 is designed to fan out low-jitter reference clocks for wired or optical communications applications while adding minimal jitter to the clock signal. An internal linear power supply regulator and bulk capacitors minimize additive jitter due to power supply noise. The device operates from 2.5V+/-5% or 3.3V+/-5% supply. Its operation is guaranteed over the industrial temperature range -40°C to +85°C.