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Part: NC-26
Category:
Timing Circuits
-> Oscillators
-> Crystal/Quartz Oscillators
-> Crystal Oscillators
Description:
Company: Valpey-Fisher
Datasheet: Download NC-26 datasheet File size : 321 kB
Request For quote: Find where to buy NC-26
Datasheet text preview:
VFT8H Series Micro-miniature, Evacuated OCXO Product Data Sheet Features
· · · · · · · · · · · · Smallest OCXO available (< 1 cm3 , 2g weight) SC-cut crystal High Vacuum Sealed Enclosure Extremely Low Power Consumption (<100 mW) Very Fast Warm-up Time (30s) -9 High Stability (up to ± 5x10 over 0°C to 50°C) Low Aging (5x10 /day, 5x10 /year) Very Low Phase Noise (-160dBc/Hz TYP) HCMOS/TTL output "Gull-Wing" SMD Version Available 4.8 MHz to 50 MHz Frequencies Available "Half-size", DIL-8 compatible pinout
-10 -8
COOL...TO THE TOUCH
Ø0.500(12,7mm)
0.395 (10,0mm) 0.48 (12,2mm)
0.25 (6,35mm) MIN Ø0.018 (0,45mm) 0.300 (7,62mm)
0.600 (15,2mm)
Applications
· · · · · · Telecommunications Data Communications Battery Powered Systems and Equipment GPS Instrumentation SARSAT Beacons
8
1 2 4
0.100 (2,54mm) 0.300 (7,62mm)
8
1 2 4
5
5
0.670 (17,0mm) Ø0.580(14,3mm)
SMD Version
Vcc
SMD Reflow Profile
250
Temperature, °C
200 150 100 50 0 0 50 100 150 200
Vc 0 .1 K
1 V ref 2
8 DU T 4 5 OUTPU T
10 K
T im e , s
VF Technologies · 75 South Street, Hopkinton, MA 01748 · Tel. 1-800-XTALREP, 508-435-6831 · FAX 508 4355289 1
VFT8H Series Micro-miniature, Evacuated OCXO Specifications:
Parameter Symb Absolute Maximum Ratings Vcc Input Break Down Voltage Ts Storage temper. Vc Control Voltage Electrical F Frequency Frequency stability F/F Aging Allan Variance SSB Phase Noise Retrace G-sensitivity Input Voltage Input Current Condition Min -0.5 -40 -1 4.8 vs. Temp. vs. Supply per day per year .1s to 10s 10 Hz 100 Hz 10 KHz After 30 minutes worst direction 10.000 ±20 1 5E-10 1E-7 1E-11 -120 -145 -160 Typ Max 13.0 85 9 50 5 Unit V °C V MHz ppb ppb/V Note
after 30 days
dBc/Hz ±20 ±1.0 5.25 35/50 ppb ppb/G V mA
Deteriorates by 20LogN at higher Frequencies
4.75 5.0 3.3V steady state, 25°C 25/35 5V/3.3V supply steady state, -30°C 70/85 start-up current 150/150 10KOhm//15pF Load to 0.1ppm accuracy 35 s 45s at 3.3V supply Warm-up time 3.3V HCMOS/TTL compatible Output Waveform Logic "high" or floating active; logic "low" infinite impedance Tristate Control Vc 0 4.0 V 2.8 V with 3.3V supply Control voltage from nominal F ±0.5 ±1 ppm Pull range Monotonic, posit 0.4 ppm/V Deviation slope Vc0 @25°C, Fnom. 1.0 2.0 3.0 V (1.4 ±.8)V with 3.3V Setability Environmental and Mechanical -30°C to 70°C Standard, Other options see chart below Operating temp. range Per MIL-STD-202, 30G, 11ms Mechanical Shock Per MIL-STD-202, 5G to 2000 Hz Vibration Leads Temperature 260°C, for 10s, Max, 230°C for 30s Max SMD profile Soldering Conditions Hermetic Seal Leak rate less than 1x10-8 atm.ccm/s of helium Electrical Connections Pin Out Pin 1- Vc ; Pin 2-Vref; Pin 4- Case, GND; Pin5 Output; Pin 8- Vcc
Vcc Icc
Creating a Part Number
VFT8H
S for SMD Temperature Range
Code A B C D E F Specification 0°C to 50°C -10°C to 60°C 0°C to 70°C -20°C to 70°C -30°C to 70°C -40°C to 85°C
"V" for VCXO Temperature Stability
Code 17 58 28 18 59 YZ Specification 1x10-7 5x10-8 2x10-8 1x10-8 5x10-9 Yx10-Z
FREQUENCY, MHz
Supply Voltage
Aging
Code L S P Specification 1x10-9/Day 5x10-10/Day 2x10-10/Day
Code 5 3
Specification 5V ± 5% 3.3V ± 5%
Rev 04172003
Not all combinations are available. Consult Factory.
VF Technologies · 75 South Street, Hopkinton, MA 01748 · Tel. 1-800-XTALREP, 508-435-6831 · FAX 508 4355289 2
All parameters for 10 MHz
See chart below
Others parts begin by nc
NC-1 NC-2 NC-3 NC-4 NC-5 NC-6 NC-7 NC-8 NC-9 NC-10 NC-11
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