13. External Capacitor Selection For Crystal Oscillator
MDT2010
@ Vdd=3.0 V~5.0 V
Osc. Type
Resonator Freq.
20 MHz
HF
10 MHz
4 MHz
10 MHz
XT
4 MHz
1 MHz
1 MHz
LF
455 K
32 K
C1
5 pF ~10 pF
10 pF ~50 pF
10 pF ~30 pF
10 pF ~30 pF
10 pF ~50 pF
10 pF ~30 pF
5 pF ~10 pF
10 pF ~50 pF
10 pF ~30 pF
C2
10 pF~20 pF
20 pF ~100 pF
20 pF ~100 pF
10 pF ~50 pF
10 pF ~100 pF
10 pF ~50 pF
5 pF ~10 pF
10 pF ~50 pF
20 pF ~50 pF
MDT2010
OSC1
OSC2
C1
C2
To increase the stability of oscillator and the ability of anti-noise, the above values of the external
capacitor range can be recommended for reference, but the higher capacitance also increases
the start-up time.
This specification are subject to be changed without notice. Any latest information please preview
http;//www.mdtic.com.tw
P. 17
VER 1.1