R1800, R1801, R1802
R3800, R3801, R3802
5X7 mm Surface Mount
HCMOS 1.8V 850KHz to 165 MHz
Features
Fixed frequency or tristate
Very low power when tristated
Start up time less than 5 ms.
Stability options from +/-100 ppm to +/-25ppm
Guaranteed start-up with ramping DC supply
Description
Valpey Fisher’s R models surface
mount (SMD) oscillators provide
clock waveforms needed to clock
standard HCMOS circuits.
CONNECTIONS
Fixed Output Models
Typical Applications
Any surface mount PCB that requires a standard
HCMOS/TTL 1.8V clock, including
microprocessors and microcontrollers
Tristate Models
Floating or 1: Oscillator runs
Ground or 0: Tristate
Pad 1
Pad 2
Pad 3
Pad 4
NOT USED
Ground and Case
Output
+1.8V, V
DD
Valpey Fisher Corporation
•
75 South Street, Hopkinton, MA 01748
•
Tel. 1-800-XTALREP, 508-435-6831
•
FAX 508 4355289
1
R1800, R1801, R1802
R3800, R3801, R3802
5X7 mm Surface Mount
HCMOS 1.8V 850KHz to 165 MHz
ELECTRICAL SPECIFICATIONS
Frequency Range
850 KHz to 165 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. or20 Gs, whichever is less
Humidity-Resistant
to 85° R.H. at 85°C
UNITS
volts
pf
mA
mA
volts
volts
ns
ps RMS
percent
percent
ppm
ppm/yr
MECHANICAL SPECIFICATIONS
Leak-
MIL STD 883, Method 1014, Condition A1
Case-
Hermetically sealed package
Pads-
60 microinch of gold over nickel
Marking-
Epoxy ink or laser engraved
Resistance to solvents-
MIL STD 202, Method 215
*Operating -40 to +85°C also available.
Frequency Stability
Includes calibration at 25°C, operating
temperature change of input voltage, change of load, shock and
vibration
Input Voltage
Load
Input Current
850 KHz to 70 MHz, with 15pf load
70.1 to 165.0 MHz with 15pf load
Output Levels
“0” Level
“1” Level
7.0
15.0
MIN
1.7
TYP
1.8
MAX
1.9
15
10.0
18.0
10% V
DD
90% V
DD
NON-TRISTATE
MODEL
Frequency
Stability
TRISTATE
MODEL
Frequency
Stability
Rise and Fall Times
Jitter
From positive edge to positive edge
Symmetry
850 KHz to 70MHz, @ 50% V
DD
70.1 to 165.0 MHz, @ 50% V
DD
Aging
First year
After first year
Input Requirements for Pin 1:
“1”: On-Pin 1 may float or 90% V
DD
min.
“0”: Tristate-Pin 1 requires 10% V
DD
48/52
45/55
3
1
5
10
45/55
40/60
R1800
R1801
R1802
+/-100ppm
+/-25ppm
+/-50ppm
R3800
R3801
R3802
+/-100ppm
+/-25ppm
+/-50ppm
*See Marking Specification
MARKING SPECIFICATION
The format for the marking is:
Valpey-Fisher
R Oscillator
Model Code Date Code
MRXXYY
125.00
HOW TO ORDER
For part Number, put package type before model number, and
add frequency in MHz, for example:
Pin 1
Frequency
R
R is SMD
R package
1800 -
1800
is model type
156.52M
156.52M Frequency
in MHz
Valpey Fisher Corporation
•
75 South Street, Hopkinton, MA 01748
•
Tel. 1-800-XTALREP, 508-435-6831
•
FAX 508 4355289
2
51单片机
