ML7404 Family LSIs
Hardware Design Manual
FEXL7404DG-03
4
2.1.2. Notes on the crystal oscillator circuit configuration
Note the following when designing the crystal oscillator circuit.
1.
The capacitors value of C4 and C5 depends on the crystal oscillator specification.
2.
C1 and C2 should be placed as close as possible to the XIN (#5) and the XOUT (#6) pins to suppress
parasitic LCR and stabilize the oscillator.
3.
Do not place the crystal oscillator circuit across other signal lines.
4.
Do not trace signal lines where large current flow around the crystal oscillator circuit.
5.
For the oscillator circuit capacitors, make sure the potential of the ground points is always equal to that
of the GND. Do not connect the capacitors to GNDs where large current flow.
6.
Do not take oscillation signals from the oscillator circuit.
