SURFACE MOUNT
R model
R3290, R3291,
R3292, R3296,
R3298, R3299
R3991, R3992,
R3998, R3999
CRYSTAL
OSCILLATORS
HCMOS/TTL 5V
R1280, R1281,
R1282, R1286,
R1288, R1289
R1991, R1992,
R1998, R1999
5 x 7mm Surface Mount
Commercial: 0 TO 70ºC
FIXED/TRISTATE, 1.544 MHz to 105 MHz
FEATURES
Description
• 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
MF Electronics R-Series surface mount
(SMD) oscillators provide clock wave-
forms needed to clock standard HCMOS
or TTL circuits.
• 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
CONNECTIONS
Fixed Output
Models
Tristate Models
PAD 1
NOT USED
Floating or “1”: Oscillator runs
Ground or “0”: Disable or Tristate
0.071 (1.8) SQ.
Marking
PAD 2
PAD 3
PAD 4
Ground and Case
is shown
on top
Output
+5V, V
0.205, (5.2)
Maximum
0.165
(4.2)
DD
PAD 1
(dot)
0.303 (7.7)
Maximum
0.200
(5.1)
.075 (1.9)
Maximum
SUGGESTED PC PADS
PAD 1
PAD 2 (GND)
230
200
Millimeters are shown in ( ).
160
140
.053, (1.4)
Maximum
PAD 4
(VDD
)
053, (1.4)
Max
100
0.200 .005
(5.1)
PAD 3 (OUTPUT)
“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
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