KESRX01
If required, the reference signal to the PLL can be driven
externally from a stable signal source as shown in Fig. 7.
Typically a 200mVp clock signal is ac coupled to produce
differential output on OP and OPb. (C=10nF, Rs (source) <
5kΩ)
C
CLK
Rs
XTAL2
XTAL1
OP
OPb
Fig. 7 Direct drive of crystal oscillator
Applications
For detailed applications support material consult the following Application Notes.
AN207
AN4561
KESRX01 Demonstrator Receiver - A practical Application
KESTX01/02 Demonstrator Transmitter
0.5
2.0
0
0.2
1
5
MIXER INPUT
IMPEDANCE
250 TO 500MHz
-0.5
-2.0
Fig. 8 KESRX01 mixer input impedance at -40, 27 and + 85 degrees
7