M1280 Series
Crystal Oscillators HCMOS/TTL 5V
Thru-Hole/Gull Wing; Commercial: 0° to 70°
Fixed Frequency, 1 KHz to 175 MHz
Features
Frequency from 1 KHz to 175 MHz
Choice of thru-hole packages
DIL Full Size (“M”)
Half Size DIL (“H”)
Gull Wing SMD
Description
Valpey Fisher’s thru-hole oscillators
embody 25 years of design and
manufacturing know-how. They are
available in full –size and half size
packages, all hermetically sealed with
welded stainless steel cover. These 5V
thru-hole oscillators are designed for
everyday stresses of 0°C to 70°C
operation and extended frequency
selection of 1 KHz to 175 MHz. Higher
(5V) operation ensures superior output
loading and faster rise/fall times
characteristics.
acteristics.
Tristate and “Hard Zero” options accommodate ATE
Very low power when tristated
Start up time less then 5 ms
Stability options from +/-100 ppm to +/- 20 ppm
Guaranteed start-up with ramping DC Supply
45/55 symmetry available
Internal bypass capacitor delivers superior waveform
characteristics
Jitter from positive edge to positive edge is 50 ps RMS max
Typical Applications
Any thru-hole PCB that requires a standard HCMOS/TTL
5V clock, including microprocessors and microcontrollers
Valpey Fisher Corporation
•
75 South Street, Hopkinton, MA 01748
•
Tel. 1-800-XTALREP, 508-435-6831
•
FAX 508 4355289
1
M1280 Series
Crystal Oscillators HCMOS/TTL 5V
Thru-Hole/Gull Wing; Commercial: 0° to 70°C
Fixed Frequency, 1 KHz to 175 MHz
ELECTRICAL SPECIFICATIONS
Frequency Range
Fixed Output
1 KHz to 175 MHz
Tristate 32.768 to 175 MHz
“Hard Zero”
62.5 KHz to 125 MHz
Frequency Stability
Includes calibration at 25°C, operating temperature, change of input
voltage, change of load, shock and vibration
MIN
Input Voltage, V
DD
Input Current,
1 KHz to 10 MHz
10.1 to 25 MHz
25.1 to 50 MHz
50.1 to 75 MHz
75.1 to 125 MHz
100.1 to 175 MHz
Output Levels,
“0” Level, sinking 16 mA
“1” Level,
TTL
CMOS, souring 8 mA
TYP
5.0
10
20
25
40
50
55
MAX
5.50
20
35
45
55
60
65
UNITS
volts
mA
mA
mA
mA
mA
mA
4.50
0.4
2.4
V
DD
-.4
4.6
volts
volts
volts
PIN
PIN
PIN
PIN
FULL
SIZE
1
7
8
14
HALF
SIZE
1
4
5
8
M1280’s
H1280’s
NOT
USED
Rise and Fall Times,
TTL, from 0.8 to 2.4V
HCMOS, 15 pf, 20 to 80%
1 KHz to 75 MHz
75.1 to 175 MHz
HCMOS, 30 pf, 20 to 80%
1 KHz to 125MHz
HCMOS, 50 pf, 20 to 80%
1KHz to 75 MHz
2.4
2.5
1.5
4.0
4.0
4
4
2
6
6
ns
ns
ns
ns
ns
M1290’s,”Hard-Zero”
M3290’s or Tristate for 3290’s
Floating or “1”: Oscillator runs
Ground or “0”: Hard “0” for
M1290’s or Tristate for 3290’s
Ground and Case
Output
5V, V
DD
FIXED OUTPUT
40/60
Symmetry
1280
1281
1282
1288
1289
45/55
Symmetry
1286
1991
1992
1998
1999
TRISTATE
40/60
Symmetry
3290
3291
3292
3298
3299
45/55
Symmetry
3296
3991
3992
3998
3999
Jitter,
Positive Edge to
positive edge
Symmetry
10 TTL, @ 1.4V
Depending on model
HCMOS, @ 50%
45/55
45/55
50
Ps RMS
Depending on model
Aging
First year
After first year
3
1
40/60
or 45/55
40/60
or 45/55
percent
percent
percent
percent
HARD
ZERO
40/60
Symmetry
M1290
M1291
M1292
M1298
M1299
Frequency
Stability
+/-100ppm
+/-25ppm
+/-50ppm
+/-20ppm
+/-32ppm
ppm
ppm/yr
Input Requirements for Pin 1.:
“1”: On – Pin 1 may float or 2.4V min., sourcing 400 microAmp
“0”: Disable or Tristate – Pin 1 requires 0.4V, sinking 400 microAmp
Valpey Fisher Corporation
•
75 South Street, Hopkinton, MA 01748
•
Tel. 1-800-XTALREP, 508-435-6831
•
FAX 508 4355289
2
M1280 Series
Crystal Oscillators HCMOS/TTL 5V
Thru-Hole/Gull Wing; Commercial: 0° to 70°C
Fixed Frequency, 1 KHz to 175 MHz
ENVIRONMENTAL SPECIFICATIONS
Temperature
Operating
0° to 70°C
Storage
-55°to +125°C
Shock-
1000 Gs, 0.35 ms, ½ sine wave, 3 shocks in each
plane
Vibration-
10-2000 Hz of .06” d.a. or 20 Gs, whichever is
less
Humidity-
Resistant to 85° R.H. at 85°C
MECHANICAL SPECIFICATIONS
Leak-
MIL STD 883, Method 1014, Condition A1
Pins-
Kovar, nickel plated with 60/40 solder coat
Bend test-
Will withstand two bends of 90° from
reference
Header-
Steel, with nickel plate
Case-
Stainless steel, type 304
Marking-
Epoxy ink or laser engraved
Resistance to Solvents-
MIL STD 202, Method 215
ALL OSCILLATORS HAVE INTERNAL BYPASS CAPACITORS
TEST CIRCUIT
Valpey Fisher Corporation
•
75 South Street, Hopkinton, MA 01748
•
Tel. 1-800-XTALREP, 508-435-6831
•
FAX 508 4355289
3
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