SM8703 데이터 시트보기 (PDF) - Nippon Precision Circuits

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SM8703

Clock Generator for MPEG2 System

Nippon Precision Circuits  

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

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