
μ
PD78P9014
26
Recommended Oscillating Circuit Constants
Ceramic Resonator (T
A
= –40 to +85
°
C)
C1
C2
MIN.
MAX.
Murata Mfg.
Co., Ltd.
CSB1000J
Note
1.00
100
100
1.8
5.5
Rd = 1.0 k
CSA2.00MG040
2.00
100
100
2.0
5.5
CST2.00MG040
–
–
Product containing capacitor
CSA4.19MG
4.19
30
30
1.8
5.5
CST4.19MGW
–
–
Product containing capacitor
CSA5.00MG
5.00
30
30
2.2
5.5
CST5.00MGW
–
–
Product containing capacitor
CSA5.00MGU
30
30
1.8
5.5
CST5.00MGWU
–
–
Product containing capacitor
TDK
CCR1000K2
1.0
100
100
1.8
5.5
CCR4.19MC3
4.19
–
–
1.8
5.5
Product containing capacitor
FCR4.19MC5
–
–
2.0
Product containing capacitor
CCR5.0MC3
5.0
–
–
2.2
5.5
Product containing capacitor
FCR5.0MC5
–
–
2.0
Product containing capacitor
Kyocera Corp. KBR-1000F/Y
1.0
100
100
1.8
5.5
T
A
= –20 to +85
°
C
KBR-2.0MS
2.0
68
68
2.1
5.5
PBRC4.19A
4.19
33
33
1.8
5.5
PBRC4.19B
–
–
Product containing capacitor, T
A
= –20 to +85
°
C
KBR-4.19MSB
33
33
T
A
= –20 to +85
°
C
KBR-4.19MKC
–
–
Product containing capacitor, T
A
= –20 to +85
°
C
PBRC5.00A
5.0
33
33
1.8
5.5
T
A
= –20 to +85
°
C
PBRC5.00B
–
–
Product containing capacitor, T
A
= –20 to +85
°
C
KBR-5.0MSB
33
33
T
A
= –20 to +85
°
C
KBR-5.0MKC
–
–
Product containing capacitor, T
A
= –20 to +85
°
C
Note
If the ceramic resonator is the CSB1000J (1.0 MHz) by Murata Mfg. Co., Ltd., the limiting resistor (Rd = 1.0
k
) is needed (see the following figure). If another recommended oscillator is used, the limiting resistor is
not needed.
X1
Caution The oscillation circuit constants and oscillation voltage range indicate conditions for stable
oscillation but do not guarantee the accuracy of the oscillation frequency. If the application
circuit requires accuracy of the oscillation frequency, it is necessary to set the oscillation
frequency of the resonator in the application circuit. For this, it is necessary to directly contact
manufacturer of the resonator being used.
Manufacturer
Product Name
Frequency
(MHz)
Recommended
Oscillation
Circuit
Constant (pF)
Oscillation
Voltage Range
(V
DD
)
Remarks
X2
CSB1000J
Rd
C2
C1