Network Device User Guide

Device User Guide — 9S12C128DGV1/D V01.05
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Table 8-1 Recommended External Component Values
Component Purpose Type Value
C1 VDD1 filter capapcitor ceramic X7R
220nF, 470nF
1
NOTES:
1. In 48LQFP and 52LQFP package versions, VDD2 is not available. Thus 470nF must be connected
to VDD1.
C2 VDD2 filter capacitor (80 QFP only) ceramic X7R 220nF
C3 VDDA filter capacitor ceramic X7R 100nF
C4 VDDR filter capacitor X7R/tantalum >=100nF
C5 VDDPLL filter capacitor ceramic X7R 100nF
C6 VDDX filter capacitor X7R/tantalum >=100nF
C7 OSC load capacitor
See PLL specification chapter
C8 OSC load capacitor
C9 PLL loop filter capacitor
See PLL specification chapter
C10 PLL loop filter capacitor
C11 DC cutoff capacitor
Colpitts mode only, if recommended by
quartz manufacturer
R1 PLL loop filter resistor See PLL Specification chapter
R2 / R
B
PLL loop filter resistor
Pierce mode only
R3 / R
S
PLL loop filter resistor
Q1 Quartz