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| 型號： | C9801CY |
| 英文描述： | Hex buffer |
| 中文描述： | CPU系統(tǒng)時鐘發(fā)生器|的CMOS | SSOP封裝| 56PIN |塑料 |
| 文件頁數(shù)： | 9/11頁 |
| 文件大?。?/td> | 100K |
| 代理商： | C9801CY |
Low EMI Clock Generator for Pentium II CPU Systems
with Power Management
Cypress Semiconductor Corporation
525 Los Coches St.
Milpitas, CA 95035. Tel: 408-263-6300, Fax: 408-263-6571
http://www.cypress.com
Document#: 38-07049 Rev. **
05/03/2001
Page 9 of 11
APPROVED PRODUCT
C9801
Crystal and Reference Oscillator Parameters
Characteristic
Symbol
Frequency
F
o
Tolerance
TC
TS
TA
Mode
OM
DC Bias Voltage
V
BIAS
Startup time
Ts
Load Capacitance
CL
Effective Series
resonant
resistance
Power Dissipation
DL
X1 and X2 Load
CL
Min
12.00
-
-
-
-
0.3Vdd
-
-
-
Typ
Max
16.00
+/-100
+/- 100
5
-
0.7Vdd
30
-
40
Units
MHz
PPM
PPM
PPM
Conditions
14.31818
-
-
-
-
Vdd/2
-
20
-
Calibration note 1
Stability (Ta -10 to +60C) Note 1
Aging (first year @ 25C) Note 1
Parallel Resonant
V
μ
S
pF
Note 1
R1
Ohms
-
-
0.10
mW
pF
Note 1
Internal crystal loading capacitors on
each pin (to ground). Provided by
C9801.
36
For maximum accuracy, the total circuit loading capacitance should be equal to CL. This loading capacitance is the
effective capacitance across the crystal pins and includes the device pin capacitance (CP) in parallel with any circuit
traces, the clock generator and any onboard discrete load capacitors.
Typical trace capacitance, (< half inch) is 4 pF, Load to the crystal is therefore 2.0 pF
Clock generator internal pin capacitance of 36 pF, Load to the crystal is therefore 18.0 pF
the total parasitic capacitance would therefore be = 20.0 pF.(matching CL)
Note 1: It is recommended but not mandatory that a crystal meets these specifications.
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