QD21.4-4000 Datasheet, PDF (1/1 Pages) Vectron International, Inc – Monolithic discriminator dual

Monolithic discriminator dual
QD21.4-4000/01
Application
2 pol resonator
Limiting values
discriminator
use in mobile and
stationary transceivers
Center frequency
Peak separarion
Sym. resonance frequency
Asym. resonance frequency
Change of sy. resonance
frequency
Dynamical capacity C1
fo
fs at 25°C
fa at 25°C
-40...+80°C
Terminating impedance Z
R1 || C1
R2 || C2
Test circuit
Operating temp. range
Unit
Value
MHz
kHz
MHz
MHz
ppm
fF
21.4
± 20
21.38 ± 600 Hz
21.42 ± 1200 Hz
< 30
~ 3.9
Ohm/pF 12.5
Ohm/pF 12.5
°C
-40...+80
Characterstics QD10.7-2800/01
Application circuits
R1 = 2.4 k
R2 = 2.4 k
L1; L2 = 5µH
C1; C2 = 0.8...10 pF
R1 = 0
R2 = 3.3 k
L1; L2 = 5µH
C1; C2 = 0.8...10 pF
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