SURFACE MOUNT
R models
R3306,
VOLTAGE CONTROLLED
CRYSTAL OSCILLATORS
HCMOS/TTL 3.3V
R3320, R3330
5 x 7mm Surface Mount
Commercial: 0º to 70ºC
TRISTATE, 3.5 MHz to 55 MHz
GUARANTEED CAPTURE RANGE/ABSOLUTE PULL RANGE
Description
Guaranteed Capture Range (GCR) and Absolute Pull Range (APR) are terms often used interchangeably.
MF's Guaranteed Capture Range (GCR) is defined as the minimum guaranteed frequency deviation or
These SMD VCXOs generate a 3.3 volt
HCMOS/TTL frequency output which is
controlled ("pulled") by an input voltage.
MF Electronics' VCXO specification
defines not only the end-point frequency/
voltage parameters, but also the center
voltage at which the nominal frequency
is achieved.
"pull" (in ppm) around the nominal frequency, with all effects of temperature, variations in V
taken into account. This amount of absolute frequency deviation is available under all operating conditions
for modulation or capturing other signals. No additional frequency capture allowances are necessary.
and load
DD
FEATURES
• Guaranteed Capture Range of ±50 ppm
• Excellent incremental and best-straight-line linearity
• Start-up time is less than 5ms
• Each unit is ATE-tested to guarantee full compliance with all electrical specifications
TYPICAL APPLICATIONS
• Phase locked loops and data acquisition projects, including:
– xDSL customer premise equipment
– Cable modems
CONNECTIONS
– ATM/SONET/SDH
R Models
Pad 1. Control Voltage
Pad 2. Not Used
Pad 3. Ground
Pad 4. Output
Pad 5. Tristate
Pad 6. +3.3V, VDD
0.071 (1.8) SQ.
Marking
is shown
on top
0.205, (5.2)
Maximum
0.165
(4.2)
PAD 1
(dot)
0.303 (7.7)
Maximum
0.200
(5.1)
230
200
.075 (1.9)
Maximum
SUGGESTED PC PADS
160
140
PAD 1(V )
2
PAD 3 (GND)
C
100
Millimeters are shown in ( ).
PAD 6
(VDD
.055, (1.4)
)
30
sec
min.
50 to
100 sec
PAD 5
(TRIS)
20 30 to 20
sec 50 sec sec
.055, (1.4)
min.
min.
0.200 ± .005
(5.1)
PAD 4
(OUTPUT)
Time (sec)
“R-1” Package
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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