ROX3827T3 Datasheet, PDF (1/2 Pages) TEMEX – The ROX3827T3 OCXO is the cost effective highly stable oscillator for telecom applications

DISCRETE OCXO | STANDARD OCXO WITH THERMAL COMPENSATION
ROX3827T3
The ROX3827T3 OCXO is the cost effective highly stable oscillator for telecom applications. The performance over temperature range is
comparable to the current ROX-T2. Its total stability is down to less than 50 ppb per year across all causes. Frequencies available are from
5MHz to 40MHz, and power supply options are 3.3V, 5V & 12V. These 38 x 27 mm package series of oscillators are designed with an
embedded post-compensation system with a micro-controller. They are optimized designs for the Stratum 3E and up to Stratum 2.
Features
Applications
38 x 27 mm
 Hold over below 7 µs /15 µs over 24 hours,
including temperature changes
 Standard frequencies: 10, 12.8, 13, 20,
24.576, 26 and 40 MHz
 Small form factor
 Temperature sensor output
 2 packages height : 11.7 mm and 17 mm
 IEEE 1588: G.8263, G.8273.x
 Stratum 3E timing modules
 Stratum 2 stability
 Time and frequency references
 Wireless Base Stations
 LTE-TDD Base Stations
Standard Specifications
Parameter
Min.
Nominal frequency
Operating temperature range
-40
Frequency stability over temperature
Temperature slope
Free-run accuracy over 20 years
Supply voltage stability
24 hours holdover performance,
H = 11.7 mm
H = 17 mm
Hysteresis effect
Long term stability (Ageing)
Long term stability (Ageing)
Short term 1s to 10s integration time
Retrace effect at 25°C
Supply voltage (VCC)
Power consumption
Warm-up time
Harmonics (Sinewave)
Start-up time
Oscillator output - Sinewave
5
Oscillator output – Compatible CMOS
Output voltage level high (VOH) 2.4
Output voltage level low (VOL)
Rise & fall time
Environmental
Vibration
Shocks (3 directions)
Storage temperature
-55
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Typ.
5 - 40
8
5
Max. Unit
MHz
85
°C
1
ppb
ppt/°C
±1
ppm
±1
ppb
±15 µs
±7
µs
0.3
±0.3
±10
±50
±0.1
±3
±15
±0.005
±5
3.5
1.5
±5
ppb
ppb/day
ppb/month
ppb/year
ppb/day
ppb/month
ppb/year
ppb
ppb
V
W
W
mn
-35
dBc
1
sec
9
dBm
V
0.4
V
5
ns
10
g
50
g
90
°C
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Test Condition / Description
Standard frequencies: 10, 12.8, 13, 20, 24.576,
26 and 40MHz
Peak to peak. Calm air
0.5°C/minute
Telcordia GR-1244 requirement is ± 4.6 ppm
±5% at 25°C
After 3 days of continuous power on, constant
load and 1% supply change and 50°C window in
operating temperature range, temperature
gradient ( 10 °C / hour)
Over -40 to +85°C, gradient 10°C / hour
H = 11.7 mm. After 1 week operation
H = 17 mm. After 1 week operation
After 24 hours off and 1 hour on
±5%. Standard options 3.3V and 12V
During warm-up
Steady state at 25°C calm air
Within 10 ppb of prior steady state output
frequency at time of power-off. 24 hours on min.
+ 24 hours off max.
Signal level with 50 Ω load
IEC 68-2-06 test Fc-Severity 500/10
IEC 68–2-27 test Ea severity 50A
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