FREQUENCY CONTROL PRODUCTS
STRATUM III MINIATURE OCXO
TYPES DFO S1-KH (5 V) & DFO S1-LH (3.3 V)
14.4max
FEATURES
9.5max
6.0
5.08
10 to 20 MHz
Stratum III compliant over -20 to 70°C
APPLICATIONS
Stratum III
Function
NC
E/D
GND
Output
NC
Vcc
1.0
Hmax
1.8
H = 8.50 mm
DFO S1
1
2
3
4
5
6
5.08
2.6
8.9
6
1
2
4
3
PC board footprint
1.8
TYPE
Frequency Range
Standard frequencies
DFO S1-KH
10 to 20 MHz
12.8, 16.384, 19.44 & 20 MHz
DFO S1-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
@ 1 kHz
@ 10 kHz
@100kHz
5V±5%
≤
150 mA
≤
350 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
≤
2 min @ 25°C ref @ 1 hr frequency
3.3 V ± 5 %
≤
200 mA
≤
500 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
≤
2 min @ 25°C ref @ 1 hr frequency
warm up time to reach
≤
1 x 10E-7
FREQUENCY STABILITY
type
temperature
range
model
code
detailed tolerances after 30 days of operation
stability versus:
temperature Vcc ± 5 %
ageing
≤
± 0.28
ppm
≤
±1x
10E-8
≤
± 3.5
ppm/
15 years
overall
stability
≤
± 4.6
ppm/
15 years
Holdover
stability
≤
± 0.37
ppm
24 hrs
drift
≤
±4x
10E-8
calibration
@ 25°C
≤
±5x
10E-7
Telcordia GR-1244 CORE Stratum III/IIIE or ITU-T G.813 option 1
all types
0 to 70°C BS3
-20 to 70°C CS3
DEFINITIONS
24 hours drift
24 hours holdover mode
GR-1244-CORE
Over full temperature range and Vcc ± 1 %
ORDERING CODE
Example
type + option code + frequency + model code + voltage value
DFO S1-LH 16.384 MHz CS3
TYPE
DFO S1 SIII
REVISION
00
CHECKED
NE
DATE
03.03.2005
PAGE
xx