FREQUENCY CONTROL PRODUCTS
HIGH STABILITY MINIATURE OCXO
TYPES DFO 236-M & DFO 236-MS
EXCELLENT SHORT TERM STABILITY
LOW POWER CONSUMPTION
26.2±0.2
8.9
36±0.2
25.4
FAST WARM UP
3
4
Pot out
2
10k
Pot in
8.9
1
5
Gnd
Pot in/V control
Pot out/NC
Vcc
Output
GND
1
2
3
4
5
H = 17.0 mm
5
0.8
TYPE
Frequency Range
DFO 236-MS
4 to 50 MHz
DFO 236-MSS
4 to 50 MHz
DFO 236-MH
4 to 50 MHz
0.4±0.1
Function
DFO 236-M/MS
H±0.1
DFO 236-MSH
4 to 20 MHz
ELECTRICAL SPECIFICATIONS
supply voltage
supply power (no load) @ 25°C
supply power during warm up
output load
duty cycle @ 2.5 V
rise & fall times (10 to 90%)
high/low levels or output amplitude
SSB phase noise (1 Hz BW)
@ 1 Hz
(typical @ 10MHz)
@ 10 Hz
@ 100 Hz
@ 1 kHz
harmonics
spurious
warm up time to reach
≤
1 x 10
E
-7
5 V ± 5 % to
15 V ± 10 %
≤
1W
≤
5W
Sine 50
Ω
± 10 %
0 dBm ± 2 dB
≤
-70 dBc/Hz
≤
-100 dBc/Hz
≤
-120 dBc/Hz
≤
-130 dBc/Hz
≤
-20 dBc
≤
-70 dBc
≤
10 min
5 V ± 5 % to
15 V ± 10 %
≤
1W
≤
5W
Sine 50
Ω
± 10 %
0 dBm ± 2 dB
≤
-90 dBc/Hz
≤
-120 dBc/Hz
≤
-130 dBc/Hz
≤
-135 dBc/Hz
≤
-25 dBc
≤
-70 dBc
≤
10 min
≤
10 min
5 V ± 5 % to 15 V ± 10 %
≤
1W
≤
5W
HCMOS 15 pF or 2 TTL
40/60...60/40 %
≤
15 ns
≥
3.5 V/≤ 0.5 V
FREQUENCY STABILITY
type
DFO 236-M
DFO 236-MSH
DFO 236-MSS
stability versus supply voltage
-20 to 70°C
temperature
range
model
code
C1717
C5817
C1817
temperature
≤
± 1 x 10 -7
≤
± 5 x 10 -8
≤
± 1 x 10
E
-8
E
E
detailed tolerances
stability versus :
ageing/day
ageing/ 1
st
year
≤
1 x 10
E
-9
≤
1 x 10
E
-7
short term
≤
1 x 10
E
-10
≤
5 x 10 -11
≤
1 x 10 -9 for Vcc ± 10 % (5 V ± 5 %)
E
E
10 kΩ pot.
pulling range
≥
± 1 x 10
E
-6
≥
± 5 x 10 -7
E
OPTIONS
external voltage
CODE
V
2.5 V ± 2 V
≥
± 1 ppm, positive slope
ORDERING CODE
Example
TYPE
DFO 236 -M / MS
REVISION
01
type + option code + frequency + model code + voltage value
DFO 236-MHV 13.000 MHz C1717/12
CHECKED
JYA
DATE
24.01.2002
PAGE
70
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