FREQUENCY CONTROL PRODUCTS
DIL 14 MINIATURE OCXO
TYPES DFO 14-KH (5 V) & DFO 14-LH (3.3 V)
FEATURES
PIN 1
20.3±0.1
15.24
10 to 30 MHz
7.62
Small size and tight stability
APPLICATIONS
Instrumentation, reference
Function
N.C. or V. control
GND
Output
Vcc
12.7±0.1
DFO 14
1
7
8
14
H±0.1
0.75±0.1
H = 8.8 mm
6.3
0.45
TYPE
Frequency Range
Standard frequencies
DFO 14-KH
10 to 30 MHz
12.8, 16.384, 19.44 & 20 MHz
DFO 14-LH
ELECTRICAL SPECIFICATIONS
supply voltage
supply current (no load) @ 25°C
supply current during warm up
output load
duty cycle @ 2.5 V
rise & fall times (10 to 90%)
high/low levels
SSB phase noise (1 Hz BW)
(typical @ 12.8MHz)
@ 10 Hz
@ 100 Hz
@ 1kHz
@ 10 kHz
@100kHz
5V±5%
≤
250 mA
≤
500 mA
HCMOS 15 pF or 2 TTL
40/60...60/40 %
≤
10 ns
≥
4.5 V/≤ 0.5 V
-95 dBc/Hz
-120 dBc/Hz
-140 dBc/Hz
-145 dBc/Hz
-150 dBc/Hz
≤
5 min @ 25°C ref @ 1 hr frequency
3.3 V ± 5 %
≤
300 mA
≤
800 mA
HCMOS 15 pF or 2 TTL
40/60...60/40 %
≤
10 ns
≥
2.7 V/≤ 0.5 V
-95 dBc/Hz
-120 dBc/Hz
-140 dBc/Hz
-145 dBc/Hz
-150 dBc/Hz
≤
5 min @ 25°C ref @ 1 hr frequency
warm up time to reach
≤
1 x 10E-7
FREQUENCY STABILITY
type
temperature
range
-20 to 70°C
-20 to 70°C
-20 to 70°C
stability versus supply voltage
model
code
C1727
C1757
C2757
temperature
≤
± 1 x 10 -7
E
E
≤
± 1 x 10 -7
E
≤
± 2 x 10 -7
detailed tolerances
stability versus :
ageing/day
ageing/ 1
st
year
E
≤
2 x 10 -7
E
≤
1.5 x 10 -8
E
≤
5 x 10 -7
short term
≤
1 x 10
E
-10
Calibration
@ 25°C
≤
± 0.5 x 10
E
-6
DFO 14
≤
5 x 10
E
-7
E
≤
1 x 10 -8 for Vcc ± 5 %
OPTIONS
external voltage
CODE
V
2.5 V ± 2.25 V
≥
± 2 ppm, positive slope
1.65 V ± 1.5 V
≥
± 2 ppm, positive slope
ORDERING CODE
Example
type + option code + frequency + model code + voltage value
DFO 14-LH 20 MHz C1727
TYPE
DFO 14-KH/LH
REVISION
02
CHECKED
NE
DATE
13.12.2005
PAGE
xx
51单片机