CTS Reeves
FREQUENCY PRODUCTS
CRYSTALS CLOCKS VCXOs TCXOs OCXOs
65
400 REIMANN AVE. • SANDWICH, IL 60548
Phone: 815-786-8411 • Fax: 815-786-3600 • E-Mail: www.ctsreeves.com
Maximum
Operating
Current (ma.)1
Output Type
Fanout1
Rise and Fall Times1
0.4 Vdc to +3.0 Vdc
Aging 1st Year1
(ppm) 10 Years1
Duty Cycle in % (50% Level)
Voltage Stability1
ppm Over Supply Range
Start Up Time (ms.)
Control Voltage
Input Impedance
A, B, & C Deviation
D Deviation
Deviation Response at -3 dB
Deviation Slope
Tristate Control Voltage
Output Impedance
Features:
• Frequency Range 1 to 100 MHz
• 6 PIN Surface Mount Package
• 3.3 V Operation
• ACMOS/TTL Compatible
• Optional Disable Feature
• Standard Frequencies
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.
Model 324L
Low Voltage SM VCXO
Electrical Specifications:
Parameter
Supply Voltage
Linearity
Tristate Truth Table
(Optional)
Frequency Range (MHz)
1.0 to < 12 12 to < 25 25 to < 30 30 to < 100
7 Vdc
3.3 V ±5%
35 25 35 75
HCMOS
15pf
< 3 ns < 3 ns < 5 ns < 3 ns
345 7
12 12 15 18
50 ±5 50 ±10 50 ±10 50 ±10
555 6
10 10 8 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.
66
CTS Reeves
FREQUENCY PRODUCTS
400 REIMANN AVE. • SANDWICH, IL 60548
Phone: 815-786-8411 • Fax: 815-786-3600 • E-Mail: www.ctsreeves.com
CRYSTALS
CLOCKS
VCXOs
TCXOs
OCXOs
±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
CMOS
(100%)
(90%)
(50%)
(10%)
Period (100%)
% Uptime
Voh
Vol
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
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)
Waveform Conditions:
tf
tf
Ordering Information:
Model Type 324L - ___ ___ ___MO___ ___ . ___ ___ ___ ___ ___ ___
Frequency in MHz
Frequency Deviation Options
A±50 ppm to ±90 ppm
B±75 ppm to ±135 ppm
C±100 ppm to ±180 ppm
D±200 ppm to ±360 ppm
Temperature Stability Options
A
B
C
D
Enable Options
A Enable/Disable
S Standard
Equivalent Test Load:
Vcc Out
Vcc
Test
Point
HI-Z
Probe
.01uF
Ground
Outline Drawing and
Pin Connections:
0.350
TWO CENTER “J” LEADS
ARE ATTACHED ONLY
FOR ENABLE OPTION
6 5 4
1 2 3
0.200
0.550
0.183 MAX
0.290 ±0.010
0.018 ±0.001
J LEAD
CASTELLATION
0.025 -0.000
-0.01+
0.040
Model 324L
Low Voltage SM VCXO
Pin Description
PIN FUNCTION
1 V CONTROL
2 OEH (OPTIONAL)
3 CASE/CKT GND
4 OUTPUT
5 N/C
6 Vcc
