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| HD6473837H Datasheet, PDF (104/562 Pages) Renesas Technology Corp – Hardware Manual | |||
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Connecting a Ceramic Oscillator: Figure 4.4 shows a typical method of connecting a ceramic
oscillator.
OSC 1
OSC 2
C1
Rf
C2
R f = 1 M⦠±20%
C1 = 30 pF ±10%
C2 = 30 pF ±10%
Ceramic oscillator: Murata
Figure 4.4 Typical Connection to Ceramic Oscillator
Notes on Board Design: When generating clock pulses by connecting a crystal or ceramic
oscillator, pay careful attention to the following points.
Avoid running signal lines close to the oscillator circuit, since the oscillator may be adversely
affected by induction currents. (See figure 4.5.)
The board should be designed so that the oscillator and load capacitors are located as close as
possible to pins OSC1 and OSC2.
To be avoided
Signal A Signal B
C1
OSC 1
OSC 2
C2
Figure 4.5 Board Design of Oscillator Circuit
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