7 oscillation characteristics, Osc1 crystal oscillation, Osc3 crystal oscillation – Epson S1C33210 User Manual
Page 99: Osc3 ceramic oscillation
8 ELECTRICAL CHARACTERISTICS
S1C33210 PRODUCT PART
EPSON
A-85
8.7 Oscillation Characteristics
Oscillation characteristics change depending on conditions (board pattern, components used, etc.). Use the following
characteristics as reference values. In particular, when a ceramic or crystal oscillator is used, use the oscillator
manufacturer recommended values for constants such as capacitance and resistance.
OSC1 crystal oscillation
(Unless otherwise specified: crystal=Q11C02RX
#1
32.768kHz, Rf
1
=20M
Ω
, C
G1
=C
D1
=15pF
#2
)
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
∗
Operating temperature
Ta
V
DD
=2.7V to 3.6V
-40
85
°
C
#1 Q11C02RX: Crystal resonator made by Seiko Epson
#2 "C
G1
=C
D1
=15pF" includes board capacitance.
(Unless otherwise specified: V
DD
=3.3V, V
SS
=0V, crystal=Q11C02RX
#1
32.768kHz,
Rf
1
=20M
Ω
, C
G1
=C
D1
=15pF
#2
, Ta=25
°
C)
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
∗
Oscillation start time
t
STA1
3
sec
External gate/drain capacitance
C
G1,
C
D1
C
G1
=C
D1
,
including board capacitance
5
25
pF
Frequency/IC deviation
∆
f/
∆
IC
-10
10
ppm
Frequency/power voltage deviation
∆
f/
∆
V
-10
10
ppm/V
Frequency adjustment range
∆
f/
∆
C
G
C
G
=C
D1
= 5 to 25pF
50
ppm
#1 Q11C02RX: Crystal resonator made by Seiko Epson
#2 "C
G1
=C
D1
=15pF" includes board capacitance.
OSC3 crystal oscillation
Note: A "crystal resonator that uses a fundamental" should be used for the OSC3 crystal oscillation circuit.
(Unless otherwise specified: V
SS
=0V, crystal=Q22MA306
#1
33.8688MHz,
Rf
2
=1M
Ω
, C
G1
=C
D1
=15pF
#2
, Ta=25
°
C)
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
∗
Oscillation start time
t
STA3
V
DD
=3.3V
10
ms
#1 Q22MA306: Crystal resonator made by Seiko Epson
#2 "C
G1
=C
D1
=15pF" includes board capacitance.
OSC3 ceramic oscillation
(Unless otherwise specified: V
SS
=0V, Ta=25
°
C)
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
∗
Oscillation start time
t
STA3
10MHz ceramic oscillator
10
ms
1
16MHz ceramic oscillator
10
ms
2
20MHz ceramic oscillator
10
ms
3
25MHz ceramic oscillator
5
ms
4
33MHz ceramic oscillator
5
ms
5
∗
note)
No.
Ceramic
Recommended constants
Power voltage
Remarks
oscillator
CG2 (pF) CD2 (pF)
Rf2 (M
Ω
)
range (V)
(Manufacturer)
1
CST25.00MXW0H1
5
5
1
2.7 to 3.6
(Murata Mfg. corporation)
2
CST33.00MXZ040
Open
Open
1
2.7 to 3.6
(Murata Mfg. corporation)
∗
1 This oscillator has a tendency to rise to the frequency of 0.3%.