R1610C RDC Semiconductor, R1610C Datasheet - Page 19

• Manufacturer Part Number: R1610C
• Description: High Performance 16 Bits MCU Integrated One 10/100M Mac Controller - 3.3V Operating Voltage/2.5V Core Voltage
• Manufacturer: RDC Semiconductor

R
4.
Note: X1 input clock must be within + - 100ppm tolerance.
Data Sheet
Final Version 1.5
October 27, 2003
R
4.1 Fundamental Mode
4.2 Third-Overtone Mode
C1 -------------- 20pF
C2 -------------- 20pF
Rf -------------- 1 mega-ohm
C1 -------------- 20pF
C2 -------------- 20pF
Cc -------------- 200pF 20%
Rf --------------- 1 Mega-Ohm
L ---------------- 4.7uH, 6.8uH, 8.2uH, 10uH (25MHz)
Normally, high frequency use for third overtone mode can get price advantage, but additional L and Cc
are needed.
Typical value suggestions are as follows:
D
Oscillator Characteristics
D
C
C
®
®
R
R
I
I
S
S
C
C
D
D
S
S
20%
20%
20%
20%
P
P
C
C
o
o
m
m
m
m
u
u
n
n
i
i
c
c
C1
a
a
C1
t
t
i
i
o
o
n
n
C2
C2
Cc
L
Rf
Rf
200pF
X1
X2
X1
X2
R1610C
R1610C
Fast Ethernet RISC Processor
R1610C
19