Ref_Rext And Ref_Filt Pins; Example Of Circuit Configuration; Recommended Resistors; Recommended Ceramic Capacitors - Renesas R-IN32M4-CL2 User Manual

R-IN32M4-CL2 User's Manual: Board design edition
6.3

REF_REXT and REF_FILT Pins

The method of handling the REF_REXT and REF_FILT pins and recommended values for the connected components
are shown below.
6.3.1

Example of Circuit Configuration

Figure 6.5 Example of Circuit Configuration for REF_REXT and REF_FILT
6.3.2

Recommended Resistors

We recommend using components that satisfy the following conditions.
Resistance value: 2kΩ, 1% accuracy
Rated power: At least 0.0625 W
6.3.3

Recommended Ceramic Capacitors

We recommend using components that satisfy the following conditions.
Capacitor: 1.0 µF, 10% accuracy
Thermal characteristic: C0G, X7R, or X5R
R18UZ0046EJ0200
Dec. 28, 2018
Place the wiring separately from that for other high-frequency
signals, but place the components close to the pins.
Join the wires
at a single
point, and
connect this to
1.0
GND.
Place GND wiring as a guard.
2kΩ
REF_REXT
REF_FILT
F
µ
6. Gigabit Ethernet PHY Pins
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