Input impedance (Vtune –GND)
|
|
Vtune and GND
Circuit model |
 |
|
|
P/N |
Parallel Cap.
(pF)
|
Parasitic Cap.
(pF)
|
RF signal Cut
Resistance
(Ω)
|
Insulation
Resistance
(Ω)
|
LXRW-050,056 |
3,300 |
0.5 |
150k |
10M |
LXRW-054,055 |
3,840 |
0.5 |
150k |
10M |
LXRW-053 |
5,760 |
0.5 |
150k |
10M |
LXRW-058, 059 |
12,800 |
0.5 |
50k |
10M |
Input impedance Details(Vtune –GND)

VAC consists of a capacity part and a resistor part.
The two capacitors and the resistance can be simplified between the vtune and GND.
Measurement results(LXRW19V201-058)
The capacitance between VTune and GND is 12.8 nf * and parasitic capacitance is about 0.5 pf.
*Simulation parameters