参数资料
型号: 514ECAXXXXXXAAGR
厂商: SILICON LABORATORIES
元件分类: 时钟产生/分配
英文描述: 250 MHz, OTHER CLOCK GENERATOR, PDSO6
封装: 5 X 7 MM, ROHS COMPILANT PACKAGE-6
文件页数: 28/32页
文件大小: 267K
代理商: 514ECAXXXXXXAAGR
Si514
Preliminary Rev. 0.9
5
Table 3. Output Clock Frequency Characteristics
VDD = 1.8 V ±5%, 2.5 or 3.3 V ±10%, TA = –40 to +85 oC
Parameter
Symbol
Test Condition
Min
Typ
Max
Units
Programmable
Frequency Range
FO
CMOS
0.100
212.5
MHz
FO
LVDS/LVPECL/HCSL
0.100
250
MHz
Frequency
Reprogramming
Resolution
MRES
0.026
ppb
Frequency Range for
Small Frequency Change
(Continuous Glitchless
Output)
From center frequency
–1000
+1000
ppm
Settling time for Small
Frequency Change
<±1000 ppm from
center frequency
100
s
Settling time for Large
Frequency Change (Out-
put Squelched during Fre-
quency Transition)
>±1000 ppm from
center frequency
——
10
ms
Total Stability
Frequency Stability Grade C1
–30
+30
ppm
Frequency Stability Grade B2
–50
+50
ppm
Frequency Stability Grade A2
–100
+100
ppm
Temperature Stability
Frequency Stability Grade C
–20
+20
ppm
Frequency Stability Grade B
–25
+25
ppm
Frequency Stability Grade A
–50
+50
ppm
Startup Time
TSU
Minimum VDD until output
frequency (FO) within specification
——
10
ms
Disable Time
TD
FO < 10 MHz
60
s
FO 10 MHz
25
s
Notes:
1.
Total stability includes initial accuracy, operating temperature, supply voltage change, load change, and shock and
vibration (not under operation), and 1 year aging at 25 oC.
2.
Total stability includes initial accuracy, operating temperature, supply voltage change, load change, shock and vibration
(not under operation), and 10 years aging at 40 oC.
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