CTS
Reeves
FREQUENCY PRODUCTS
Model 324L
Low Voltage SM VCXO
CRYSTALS
Features:
•
•
•
•
•
•
Frequency Range 1 to 100 MHz
6 PIN Surface Mount Package
3.3 V Operation
ACMOS/TTL Compatible
Optional Disable Feature
Standard Frequencies
CLOCKS
The CTS Reeves Model 324L is a small size
VCXO, enclosed in a true SMT Package for use in
Phase Lock Loop Applications. Its low voltage
means more application flexibility. The Model 324L
is available with a variety of pullability and stability options and is useful in almost
any VCXO application. The optional disable feature is perfect for automated testing.
Electrical Specifications:
Parameter
Maximum
Operating
Current (ma.)
1
Output Type
Fanout
1
Rise and Fall Times
1
0.4 Vdc to +3.0 Vdc
Aging
1st Year
1
(ppm)
10 Years
1
Duty Cycle in % (50% Level)
Voltage Stability
1
ppm Over Supply Range
Start Up Time (ms.)
Control Voltage
Input Impedance
A, B, & C Deviation
Linearity
D Deviation
Deviation Response at -3 dB
Deviation Slope
Supply Voltage
Tristate Truth Table
(Optional)
Tristate Control Voltage
Output Impedance
1.0 to < 12
VCXOs
35
Frequency Range (MHz)
12 to < 25
25 to < 30
7 Vdc
3.3 V
±5%
25
35
HCMOS
15pf
< 3 ns
4
12
50
±10
5
10
< 5 ns
5
15
50
±10
5
8
30 to < 100
75
< 3 ns
3
12
50
±5
5
10
< 3 ns
TCXOs
7
18
50
±10
6
8
0 to 3 Vdc
50 K Minimum
±10%
of Best Straight Line
±20%
of Best Straight Line
10 kHz Min.
Positive
Pin 1 Status
Oscillator Status
Logic 1
Oscillator Enabled
Floating
Oscillator Enabled
Logic 0
Oscillator Disabled
0.8 Vdc (Max) to 2.2 Vdc (Min)
50 k ohms, Min.
OCXOs
65
400 REIMANN AVE.
•
SANDWICH, IL 60548
Phone: 815-786-8411
•
Fax: 815-786-3600
•
E-Mail: www.ctsreeves.com
CTS
Reeves
CRYSTALS
FREQUENCY PRODUCTS
Equivalent Test Load:
Vcc
Vcc
Out
Ground
Test
Point
HI-Z
Probe
Model 324L
Low Voltage SM VCXO
Waveform Conditions:
Period (100%)
% Uptime
CMOS
(100%)
(90%)
(50%)
(10%)
t
f
t
f
Voh
Vol
.01uF
CLOCKS
Outline Drawing and
Pin Connections:
6
5
4
TWO CENTER “J” LEADS
ARE ATTACHED ONLY
FOR ENABLE OPTION
CASTELLATION
0.025
-0.000
0.040-0.01+
Pin Description
PIN
1
2
3
4
5
6
FUNCTION
V CONTROL
OEH (OPTIONAL)
CASE/CKT GND
OUTPUT
N/C
Vcc
0.350
0.290
±0.010
0.018
±0.001
J LEAD
0.183 MAX
VCXOs
1
2
0.200
0.550
3
Mechanical Specifications:
Case:
Ceramic/metal, hermetically sealed
Leads:
Nickel plated with solder coating,
or gold plated
Seal:
Resistance weld
Fine Leak Test:
Mass spectrometer leak rate less than
5x10
-8
atmosphere-cc/sec of helium
Ordering Information:
Solderability:
95% solder coverage, using RMA flux
63 Sn / 37 Pb solder at +245°C
±5°C
Temperature:
Operating: See Chart
Storage: -55 to 125°C
Vibration:
20 G's rms, 20 to 2000 Hz
Mechanical Shock:
1000 G's 5ms pulse (3 shock/plane)
TCXOs
Model Type 324L - ___ ___ ___MO___ ___ . ___ ___ ___ ___ ___ ___
OCXOs
Enable Options
A
S
Enable/Disable
Standard
Temperature Stability Options
A
B
C
D
±20
ppm
0°C to +70°C
±50
ppm
0°C to +70°C
±25
ppm
-20°C to +70°C
±25
ppm
-40°C to +85°C
Frequency Deviation Options
A
B
C
D
±50
ppm to
±90
ppm
±75
ppm to
±135
ppm
±100
ppm to
±180
ppm
±200
ppm to
±360
ppm
Frequency in MHz
66
400 REIMANN AVE.
•
SANDWICH, IL 60548
Phone: 815-786-8411
•
Fax: 815-786-3600
•
E-Mail: www.ctsreeves.com
DIY/Open Source Hardware
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