SP5768 Datasheet, PDF (9/10 Pages) Zarlink Semiconductor Inc – 3.0 GHz Low Phase Noise Frequency Synthesiser

V_REF
500
500
RF INPUTS
RF inputs
25K
INPUT
VCC
BIAS
SP5768
V_CC
CHARGE
PUMP
200
DRIVE
Loop amplifier
PORT
Disable, Enable, Data and Clock inputs
V_CC
CRYSTAL
CRYSTAL CAP
Output Ports
V_CC
REF
1.2mA
Reference oscillator
Reference output
Figure 9 - Input/Output interface circuits
9