參數(shù)資料
型號(hào)： DFO14-KHV20MHZC1757
廠商： CTS CORP
元件分類： XO, clock
英文描述： OCXO, CLOCK, 20 MHz, HCMOS/TTL OUTPUT
封裝： MINIATURE PACKAGE-14/4
文件頁(yè)數(shù)： 1/1頁(yè)
文件大?。?/td> 33K
代理商： DFO14-KHV20MHZC1757
FREQUENCY CONTROL PRODUCTS
TYPE
DFO 14-KH/LH
REVISION
02
CHECKED
NE
DATE
13.12.2005
PAGE
xx
DI L 14 MI NI ATURE OCXO
TYPES DFO 14-KH (5 V) & DFO 14-LH (3.3 V )
FEATURES
10 to 30 MHz
Small size and tight stability
APPLICATIONS
Instrumentation, reference
Function
DFO 14
N.C. or V. control
1
GND
7
Output
8
Vcc
14
TYPE
DFO 14-KH
DFO 14-LH
Frequency Range
10 to 30 MHz
Standard frequencies
12.8, 16.384, 19.44 & 20 MHz
ELECTRICAL SPECIFICATIONS
supply voltage
5 V ± 5 %
3.3 V ± 5 %
supply current (no load) @ 25°C
≤ 250 mA
≤ 300 mA
supply current during warm up
≤ 500 mA
≤ 800 mA
output load
HCMOS 15 pF or 2 TTL
duty cycle @ 2.5 V
40/60...60/40 %
rise & fall times (10 to 90%)
≤ 10 ns
high/low levels
≥ 4.5 V/≤ 0.5 V
≥ 2.7 V/≤ 0.5 V
SSB phase noise (1 Hz BW)
@ 10 Hz
-95 dBc/Hz
(typical @ 12.8MHz)
@ 100 Hz
-120 dBc/Hz
@
1kHz
-140 dBc/Hz
@ 10 kHz
-145 dBc/Hz
@100kHz
-150 dBc/Hz
warm up time to reach
≤ 1 x 10E-7
≤ 5 min @ 25°C ref @ 1 hr frequency
FREQUENCY STABILITY
detailed tolerances
temperature
model
stability versus :
Calibration
type
range
code
temperature
ageing/day
ageing/ 1
st year
short term
@ 25°C
-20 to 70°C
C1727
≤ ± 1 x 10E-7
≤ 2 x 10E-7
-20 to 70°C
C1757
≤ ± 1 x 10E-7
≤ 5 x 10E-7
DFO 14
-20 to 70°C
C2757
≤ ± 2 x 10E-7
≤ 1.5 x 10E-8
≤ 5 x 10E-7
≤ 1 x 10E-10
≤ ± 0.5 x 10E-6
stability versus supply voltage
≤ 1 x 10E-8 for Vcc ± 5 %
OPTIONS
CODE
external voltage
V
2.5 V ± 2.25 V
≥ ± 2 ppm, positive slope
1.65 V ± 1.5 V
≥ ± 2 ppm, positive slope
ORDERING CODE
type + option code + frequency + model code + voltage value
Example
DFO 14-LH 20 MHz C1727
H = 8.8 mm
12.7±0
.1
20.3±0.1
H±
0.
1
7.62
15.24
PIN 1
0.45
6.3
0.7
5
±0.1
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