T1250, T1254, T1256, T1258, T4001 thru T4009,
T3250, T3254, T3256, T3258, T4301 thru T4309
5X7 mm Surface Mount
Extended Temperature/COTS 20KHz to 100MHz
Description
Owing to their small size, light weight, and
rugged characteristics, these 5V HCMOS
extended temperature/COTS oscillators
fulfill tasks not previously feasible. They
are used in applications that take advantage
of their extended temperature range and
high performance. Twenty four different
models (with and without tristate) cover
-55°C to +200°C operation and provide
frequency selection from 20KHz to
100MHz. They combine excellent long-
term reliability, loading characteristics, and
superior startup performance.
Extended Temperature COTS Product Specification XO
Features
• Tiny 5X7 SMD form factor
• Hermetically sealed for rugged environmental conditions
• Extremely wide operating temperature range accommodates harsh
environments
• All crystals are processed in-house with tight angle control to assure
best frequency-temperature characteristics
• All units are vacuum baked before sealing at 175°C for 16 hours to
eliminate moisture traces and pre-age units for superior stability
Typical Applications
Any electronic circuit requiring 5V HCMOS clocking that is exposed to
very high or very low temperatures such as oil drilling or weather
observation equipment
Non-
Tristate
Model
Tristate
Model
Frequency
Stability
Temperature
T1250 T3250 +/-75ppm -40 to + 85°C
T1254 T3254 +/-75ppm 0 to + 175°C
T1256 T3256 +/-75ppm -55 to + 85°C
T1258 T3258 +/-100ppm -40 to + 85°C
T4001 T4301 +/-500ppm -55 to + 200°C
T4002 T4302 +/-500ppm 0 to 200°C
T4003 T4303 +/-250ppm -55 to + 200°C
T4004 T4304 +/-250ppm 0 to 200°C
T4005 T4305 +/-250ppm -55 to 175°C
T4006 T4306 +/-250ppm 0 to 175°C
T4007 T4307 +/-150ppm -55 to 175°C
T4008 T4308 +/-150ppm 0 to 175°C
T4009 T4309 +/-100ppm -55 to 125°C
Valpey Fisher Corporation • 75 South Street, Hopkinton, MA 01748 • Tel. 1-800-XTALREP, 508-435-6831 • FAX 508 4355289
1
T1250, T1254, T1256, T1258, T4001 thru T4009,
T3250, T3254, T3256, T3258, T4301 thru T4309
5X7 mm Surface Mount
Extended Temperature/COTS 20KHz to 100MHz
ELECTRICAL SPECIFICATIONS
Frequency 20 KHz to 100MHz
Frequency Stability Includes calibration at 25°C, operating
temperature, change of input voltage, change of
load, shock and vibration.
MIN TYP MAX UNITS
Input Voltage, VDD 4.5 5.0 5.5 volts
Input Current 40 mA
Output
All units, full range
Loads 3 TLL loads, or 10LSTTL loads, or 15 pf CMOS
Rise and Fall Time
TTL and LSTTL from 0.4 to 2.4V 8 ns
CMOS, 15pf, from 0.4 to (VDD-0.4) V 8 ns
CMOS, 30pf, from 0.4 to (VDD-0.4) V 10 ns
Symmetry
TTL and LSTTL @ 1.4V 40/60 percent
CMOS @50% VDD 40/60 percent
Aging
First year 3 ppm
After first year 1 ppm/yr
ENVIRONMENTAL SPECIFICATIONS
Shock-1000 Gs, 0.35 ms, ½ sine wave, 3 shocks in each plane
Vibration-10-2000 Hz of .06” d.a. or 20Gs, whichever is less
Humidity-Resistant to 85° R.H. at 85°C
Connections
Pad Non-Tristate Models Tristate Models
1. Not Used Floating or “1”: Oscillator runs Ground or
“0”: Disable or Tristate
2. Ground and Case Ground and Case
3. Output Output
4. +5.0V, VDD +5.0V, VDD
Valpey Fisher Corporation • 75 South Street, Hopkinton, MA 01748 • Tel. 1-800-XTALREP, 508-435-6831 • FAX 508 4355289
2
Valpey Fisher Corporation • 75 South Street, Hopkinton, MA 01748 • Tel. 1-800-XTALREP, 508-435-6831 • FAX 508 4355289
3
T1250, T1254, T1256, T1258, T4001 thru T4009,
T3250, T3254, T3256, T3258, T4301 thru T4309
5X7 mm Surface Mount
Extended Temperature/COTS 20KHz to 100MHz
MARKING SPECIFICATION
The format for the marking is:
Valpey-Fisher Model Code Date Code
T Oscillator
MTXXYY
100.00
Fre
q
uenc
y
Pin 1
MECHANICAL SPECIFICATIONS
Gross Leak-Each unit checked in 125°C fluorocarbon
Fine Leak-Mass spectrometer leak rate less than 2X10-8 atm,
cc/sec of helium
Case-Hermetically sealed ceramic package
Pads-60 microinch of gold over nickel
Marking-Epoxy ink or laser inscribed
Resistance to Solvents-MIL STD 202, Method 215
HOW TO ORDER
For Part Number, put package type before model number, and
add frequency in MHz, for example:
T 4309 - 40M
T is SMD 4309 40M Frequency
T package is model type in MHz
Rev. 1.0 4/04
