CRYSTAL
OSCILLATORS
HCMOS/TTL 5V
SURFACE MOUNT
R model
R1280,
R1282,
R1288,
R1991,
R1998,
R1281,
R1286,
R1289
R1992,
R1999
R3290,
R3292,
R3298,
R3991,
R3998,
R3291,
R3296,
R3299
R3992,
R3999
5 x 7mm Surface Mount
Commercial: 0 TO 70ºC
FIXED/TRISTATE, 1.544 MHz to 105 MHz
FEATURES
•
Jitter from positive edge to positive edge is 6 ps RMS maximum, ensuring stable data transmission
•
Stability options of ±100 ppm and ±50 ppm
•
45/55 symmetry is standard
•
Guaranteed start-up with ramping DC Supply
•
Start up time less than 5 ms
•
Tristate option available
•
Very low power when tristated
TYPICAL APPLICATIONS
•
Telecom and data networking applications that require low jitter, including:
– DSL
– Gigabit ethernet
– Fibre Channel
– VoIP
Description
MF Electronics R-Series surface mount
(SMD) oscillators provide clock wave-
forms needed to clock standard HCMOS
or TTL circuits.
CONNECTIONS
Fixed Output
Models
PAD 1
NOT USED
Tristate Models
Floating or “1”: Oscillator runs
Ground or “0”: Disable or Tristate
0.071 (1.8) SQ.
Marking
is shown
on top
0.165
(4.2)
PAD 1
(dot)
0.303 (7.7)
Maximum
.075 (1.9)
Maximum
PAD 2
0.205, (5.2)
Maximum
Ground and Case
Output
+5V, V
DD
PAD 3
PAD 4
0.200
(5.1)
SUGGESTED PC PADS
PAD 1
PAD 2 (GND)
Millimeters are shown in ( ).
Temperature
of pad (…C)
PAD 4
( V
DD
)
053, (1.4)
Max
0.200
±
.005
(5.1)
PAD 3 (OUTPUT)
.053, (1.4)
Maximum
230
200
160
140
100
“R” Package
30
sec
min.
50 to
100 sec
20 30 to 20
sec 50 sec sec
min.
min.
Time (sec)
Recommended Reflow Soldering Profile
ELECTRONICS
10 Commerce Dr • New Rochelle NY 10801
International Sales: +1.914-712-2200
•
USA Sales: +1.800.331.1236
•
Fax: 914.712.2290
•
www.mfelectronics.com
•
email:sales@mfelectronics.com
1 of 3
CRYSTAL OSCILLATORS
HCMOS/TTL 5V
5 x 7mm Surface Mount
Commercial: 0º TO 70ºC
FIXED/ TRISTATE, 1.544 MHz to 105 MHz
SURFACE MOUNT
R model
R1280,
R1282,
R1288,
R1991,
R1998,
R1281,
R1286,
R1289
R1992,
R1999
R3290,
R3292,
R3298,
R3991,
R3998,
R3291,
R3296,
R3299
R3992,
R3999
ELECTRICAL SPECIFICATIONS
TRISTATE
Frequency Range
1.544 MHz to 105 MHz
40/60 Symmetry
Frequency Stability
Includes calibration at 25°C, operating temperature,
change of input voltage, change of load, shock and
vibration.
Input Voltage
Input Current
3 M to 10 MHz
10.1 to 20 MHz
20.1 to 30 MHz
30.1 to 50 MHz
50.1 to 67 MHz
67.1 to 125 MHz
Output Levels
“0” Level, sinking 16 ma
“1” Level,
TTL
CMOS, sourcing 8 ma
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
Jitter
from positive edge to positive edge
Symmetry
10 TTL, @ 1.4V
Depending on model
HCMOS, @ 50% V
DD
Depending on model
Aging
First year
After first year
45/55
45/55
MIN
4.50
TYP
5.0
MAX
5.50
UNITS
volts
Marking
Letter
ID*
C
P
D
BE
BI
45/55 Symmetry
Marking
Letter
ID*
AN
BA
BC
BG
BL
Frequency
Stability
±100 ppm
±25 ppm
±50 ppm
±20 ppm
±32 ppm
MODEL
R3290
R3291
R3292
R3298
R3299
MODEL
R3296
R3991
R3992
R3998
R3999
5
10
20
45
50
70.0
8
15
30
50
60
80
ma
ma
ma
ma
ma
ma
FIXED OUTPUT
0.4
2.4
V
DD
-.4
4.6
volts
volts
volts
40/60 Symmetry
Marking
Letter
ID*
A
O
B
BF
BJ
45/55 Symmetry
Marking
Letter
ID*
AM
BB
BD
BH
BK
Frequency
Stability
±100 ppm
±25 ppm
±50 ppm
±20 ppm
±32 ppm
MODEL
R1280
R1281
R1282
R1288
R1289
MODEL
R1286
R1991
R1992
R1998
R1999
2.4
2.5
1.5
4.0
4.0
4
4
2
6
6
ns
ns
ns
ns
ns
* See Marking Specification
6
40/60
or 45/55
40/60
or 45/55
ps RMS
percent
percent
percent
percent
MARKING SPECIFICATION
The format for the marking is:
MF Electronics Model
R Oscillator
Code
Date
Code
3
1
ppm
ppm/yr
Pin 1
MRXXYY
125.00
Frequency
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
ELECTRONICS
10 Commerce Dr • New Rochelle NY 10801
International Sales: +1.914-712-2200
•
USA Sales: +1.800.331.1236
•
Fax: 914.712.2290
•
www.mfelectronics.com
•
email:sales@mfelectronics.com
2 of 3
CRYSTAL OSCILLATORS
HCMOS/TTL 5V
5 x 7mm Surface Mount
Commercial: 0º TO 70ºC
FIXED/ TRISTATE, 1.544 MHz to 105 MHz
SURFACE MOUNT
R model
R1280,
R1282,
R1288,
R1991,
R1998,
R1281,
R1286,
R1289
R1992,
R1999
R3290,
R3292,
R3298,
R3991,
R3998,
R3291,
R3296,
R3299
R3992,
R3999
ENVIRONMENTAL SPECIFICATIONS
Temperature — All models
Operating
0º to 70°C
Storage
-55º to +125°C
Shock
– 1000 Gs, 0.35 ms, 1/2 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
Case
– Ceramic
Pads
– 60 microinch of gold over nickel
Marking
– Epoxy ink or laser engraved
Resistance to Solvents
– MIL STD 202, Method 215
Fig. 1 R3290-14M with 50pf load
Duty Cycle is 48.2% at V
DD
/2
“I”
LEVEL
T
F
T
R
V
DD
–.4V
50%
“O”
LEVEL
40-60%
CMOS
100%
40-60%
TTL
at 1.4V
1.4V
V
DD
ENABLE – DISABLE
“ONE” OR “ZERO”
V
DD
5V
Power
Supply
GND
To adapt Fet probe to receptacle
use Tektronix Part #103-0164-00
MA
IMF
LOAD
2
3
1
4
FET PROBE
350 MHz
SCOPE
Y-OUTPUT
0.4V
COUNTER
To connect output to scope use
use Tektronix Part #131-0258-00 (receptacle)
WAVEFORMS
TEST CIRCUIT
HOW TO ORDER
For Part Number, put package type before model number,
and add frequency in MHz, for example:
R 3298 - 34.368M
R is
SMD model
3298
is model
type
34.368 M
frequency
SS#
R1280
Rev.
A
ELECTRONICS
10 Commerce Dr • New Rochelle NY 10801
Unless customer-specific terms and conditions
are signed by an officer of MF Electronics, the
sale of this and all MF Electronics products are
subject to terms and conditions set forth at
www.mfelectronics.com/terms
International Sales: +1.914-712-2200
•
USA Sales: +1.800.331.1236
•
Fax: 914.712.2290
•
www.mfelectronics.com
•
email:sales@mfelectronics.com
3 of 3
