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參數(shù)資料
| 型號： | C9531 |
| 廠商： | Cypress Semiconductor Corp. |
| 英文描述： | SMD LED Lamps |
| 中文描述： | PCIX I / O系統(tǒng)時鐘發(fā)生器與EMI控制功能 |
| 文件頁數(shù)： | 10/14頁 |
| 文件大?。?/td> | 176K |
| 代理商： | C9531 |
PCIX I/O System Clock Generator With EMI Control Features
Cypress Semiconductor Corporation
525 Los Coches St.
Milpitas, CA 95035. Tel: 408-263-6300, Fax: 408-263-6571
http://www.cypress.com
Document#: 38-07034 Rev. **
05/02/2001
Page 10 of 14
APPROVED PRODUCT
C9531
Test and Measurement Setup
Fig. 6A
Fig. 6B
Output Buffer Characteristics
Buffer Characteristics for CLK(0:4), and REF
Characteristic
Pull-Up Current
Pull-Up Current
Pull-Down Current
Pull-Down Current
Symbol
IOH
1
IOH
2
IOL
1
IOL
2
VDD = AVDD = VDDP = 3.3V
±
5
%, TA = 0oC to +70oC
Min
-33
-11
9.4
22
Typ
Max
Units
mA
mA
mA
mA
Conditions
-
-
-
-
-
-
-
-
VDD-0.5
1.2V
0.4V
1.2V
Suggested Oscillator Crystal Parameters
Characteristic
Symbol
Frequency
F
o
Tolerance
T
C
T
S
T
A
Operating Mode
-
Load Capacitance
C
XTAL
Effective Series
Resistance (ESR)
Note1: For best performance and accurate frequencies from this device, It is recommended but not mandatory that the
chosen crystal meets or exceeds these specifications
Note 2: Larger values may cause this device to exhibit oscillator startup problems
Min
33.00
-
-
-
-
-
-
Typ
33.33
-
-
-
-
20
40
Max
33.5
+/-100
+/- 100
5
-
-
-
Units
MHz
PPM
PPM
PPM
Conditions
Note 1
Stability (T
A
-10 to +60C) Note 1
Aging (first year @ 25C) Note 1
Parallel Resonant, Note 1
The crystal’s rated load. Note 1
Note 2
pF
R
ESR
Ohms
To obtain the maximum accuracy, the total circuit loading capacitance should be equal to C
XTAL
. This loading
capacitance is the effective capacitance across the crystal pins and includes the clock generating device pin
capacitance (C
FTG
), any circuit traces (C
PCB
), and any onboard discrete load capacitors (C
DISC
).
2 .4 V
0 .4 V
3 .3 V
0 V
T r
T f
1 .5 V
3 .3 V S ig n a ls
tD C
-
-
Probe
Output under Test
Load Cap
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