SM8703AV
FUNCTIONAL DESCRIPTION
27 MHz Master Clock
The 27 MHz master clock is generated either by connecting a crystal oscillator element between XTI (pin 8)
and XTO (pin 9), as shown in figure 1, or by connecting an external 27 MHz clock to XTI, as shown in figure
2. Input 27MHz master clock on XTI when using an external clock. Crystal oscillator element must be funda-
mental.
C2
XTI (Pin8)
Oscillator
C1
XTO (Pin9)
C1, C2 = 5 to 33pF
Internal
Circuits
SM8703AV
Figure 1. Crystal oscillator connection
MO1 (Pin3)
MO2 (Pin24)
External Clock XTI (Pin8)
Open
Oscillator
XTO (Pin9)
Internal
Circuits
SM8703AV
Figure 2. External clock input
MO1 (Pin3)
MO2 (Pin24)
NIPPON PRECISION CIRCUITS—7