參數(shù)資料
型號(hào): CY2291F
廠商: CYPRESS SEMICONDUCTOR CORP
元件分類: XO, clock
英文描述: Three-PLL General Purpose EPROM Programmable Clock Generator
中文描述: 66.6 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO20
封裝: 0.300 INCH, MO-119, SOIC-20
文件頁數(shù): 9/13頁
文件大?。?/td> 121K
代理商: CY2291F
CY2291
9
Switching Characteristics, Industrial 5.0V
Parameter
Name
Description
Min.
Typ.
Max.
Unit
t
1
Output Period
Clock output range,
5V operation
CY2291I
11.1
(90 MHz)
13000
(76.923 kHz)
ns
CY2291FI
12.5
(80 MHz)
13000
(76.923 kHz)
ns
Output Duty
Cycle
[11]
Duty cycle for outputs, defined as t
2
÷
t
1[12]
f
OUT
> 66 MHZ
Duty cycle for outputs, defined as t
2
÷
t
1[12]
f
OUT
< 66 MHZ
Output clock rise time
[13]
Output clock fall time
[13]
40%
50%
60%
45%
50%
55%
t
3
t
4
t
5
Rise Time
3
5
ns
Fall Time
2.5
4
ns
Output Disable
Time
Time for output to enter three-state mode after
SHUTDOWN/OE goes LOW
10
15
ns
t
6
Output Enable
Time
Time for output to leave three-state mode after
SHUTDOWN/OE goes HIGH
10
15
ns
t
7
Skew
Skew delay between any identical or related
outputs
[3, 12, 15]
< 0.25
0.5
ns
t
8
CPUCLK Slew
Frequency transition rate
1.0
20.0
MHz/
ms
t
9A
Clock Jitter
[14]
Peak-to-peak period jitter (t
9A
Max.
t
9A
min.),
% of clock period (f
OUT
< 4 MHz)
Peak-to-peak period jitter (t
9B
Max.
t
9B
min.)
(4 MHz < f
OUT
< 16 MHz)
Peak-to-peak period jitter
(16 MHz < f
OUT
<
50 MHz)
Peak-to-peak period jitter
(f
OUT
> 50 MHz)
Lock Time from Power-Up
<0.5
1
%
t
9B
Clock Jitter
[14]
<0.7
1
ns
t
9C
Clock Jitter
[14]
<400
500
ps
t
9D
Clock Jitter
[14]
<250
350
ps
t
10A
Lock Time for
CPLL
<25
50
ms
t
10B
Lock Time for
UPLL and SPLL
Lock Time from Power-Up
<0.25
1
ms
Slew Limits
CPU PLL Slew Limits
CY2291I
8
90
MHz
CY2291FI
8
80
MHz
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