PFD1KE EvaluationKitDatasheet

Phase Detector Evaluation Board

The PFD1KE is the evaluation board for the Microsemi PFD1K phase frequency detector with

programmable integer modulus dividers. The PFD1K contains two 40 GHz dividers, an 8 GHz phase

frequency detector, and its associated support charge pump circuit. See Figure 1 and 3.

Note: VCC supply voltage must be positive. The +3.3V must be turned on first before applying the

+25V and -5V supply. If not turned on, it will damage the phase detector.

Figure 2. (J11) I/O pin configuration

13 of 19

SMD-00191 Rev D

Subject to Change Without Notice

PFD1K

Figure 1. Evaluation board for PFD1KE (P582)

+25V supply (for the

op amp)

-5V supply (for the

op amp)

VCC (+3.3V for the

divider/phase

detector)

40GHz divider /

8GHz Phase

detector

Remote I/O interface for divider modulus

controls and charge pump gain control

(J11); (Open the dip switches before using

external I/O control)

REFN

(input)

REFP

(input)

DRO (divided ref

output)

VCON

(input)

VCOP

(input)

DVO (divided

VCO output)

Vtune (VCO

error voltage

output)

UPN (charge

pump output)

UPP (charge

pump output)

DNP (charge

pump output)

DNN (charge

pump output)

VADV (divided VCO

output analog control,

if the VADV dip switch

is in the open position)

VADR (divided ref output

analog control, if VADR

dip switch is in the open

position)

VADJ (charge pump

gain analog control, if

VADJ dip switch is in

the open position)

Op Amp – integrator for

VCO error voltage