CTS
FREQUENCY PRODUCTS
CB3/CB3LV
SMD Clock Oscillator
CRYSTALS
Features:
• Standard miniature surface mount footprint
• Frequency range 1.5 to125 MHz
• Frequency stability: 100 ppm standard; 50 ppm and 25 ppm available
• PCMCIA Type II & III
• Low voltage option available
• CMOS/TTL compatible
• Tri-State Output standard
• Tape and reel packaging (16mm)
compatible
• Fibre Channel Compliant
• Gigabit Ethernet Compliant
CLOCKS
The CTS CB3 is a ceramic packaged Clock oscillator offering reduced size and enhanced stability. The small
size means it is perfect for any application. The enhanced stability means it is the perfect choice for today’s
communications applications that require tight frequency control. Low voltage options are also available.
Tristate control is also standard.
Specifications:
PARAMETER
Frequency Range
Stability
Operating Temp.
Supply Voltage
Supply Current
SYMBOL
F
F/F
T
A
Vcc
Icc
CONDITIONS
Note 1
Commercial
Industrial
Operating Voltage Options
< 20.0 MHz
5.0 Volt Supply
3.3 Volt Supply
>20.0 MHz to < 80MHz 5.0 Volt Supply
>80 MHz to 125MHz
Output Load
Output Voltage Level
V
OH
V
OL
I
OH
I
OL
Duty
Tr, Tf
1.5 MHz to 50.0 MHz
50.1MHz to 80.0 MHz
CMOS Load
TTL Load
CMOS or TTL Load
V
OH
= 3.9V/2.2V
Vdd=4.5V/3.0V
V
OL
= 0.4V
Vdd=4.5V/3.0V
1.5 MHz to 60.0 MHz
60.1 MHz to 125 MHz
<
20.0 MHz
>20.0
MHz to <50.0 MHz
50.0 MHz to 80.0 MHz
>80
MHz to 125MHz
Enable Input Voltage(or NC)
Disable Input Voltage
Tristate Leakage Current
V
IH
V
IL
Iz
V
IL
= 0.8V
2.0
0.8
0.05
3.3 Volt Supply
5.0 Volt Supply
3.3 Volt Supply
MINIMUM
1.5
0
-40
4.5
3.0
5.0
3.3
TYPICAL
MAXIMUM
125
25,50, or 100
+70
+85
5.5
3.6
25
12
50
40
100
60
50
30
Vcc-0.5V
Vcc-0.6V
0.4
+16/+8
45
40
-16/-8
55
60
10
8
5
4
V
V
mA
V
mA
mA
%
ns
pF
UNITS
MHz
ppm
°C
V
mA
VCXOs
TCXOs
V
Output Current
Symmetry
Rise & Fall Time
OCXOs
Note 1: Inclusive of initial tolerance at time of shipment,
changes in supply voltage, load, temperature, and first
year aging at an average operating temperature of 40
o
C
Test Conditions
Symmetry
Load
Rise & Fall Time
50% of waveform
per above table
10%—90% of waveform
400 W. NORTH STREET
•
CARLISLE, PA 17013
Phone: 717-243-5929
•
Fax: 717-243-0079
•
Web: www.ctscorp.com
CTS
CRYSTALS
FREQUENCY PRODUCTS
CB3/CB3LV
SMD Clock Oscillator
Pad Connections
PAD
1
2
3
4
FUNCTION
Output Enable
Cover/CKT GND
Output
Vcc
CLOCKS
Tristate Truth Table
Pin 1 (Enable)
Floating (No Connect)
Logic 1
Logic 0
Pin 3 (Output)
Enabled (Oscillating)
Enabled (Oscillating)
Disabled (Tristate)
Key
mm
in
Environmental Characteristics:
VCXOs
Storage Temperature: ....................................... -55°C to +125°C
Temperature Cycle: ......................... 25 cycles, -55°C to +125°C
per MIL-STD-883, Method 1010
Mechanical Shock ............................................ 1500g's, 0.5mS,
3 shocks per direction,
per MIL-STD-883, Method 2002
Sinusoidal Vibration: ........................ 0.06" D.A., 10 to 55 Hz and
30g's, 55 to 2000 Hz,
3 cycles per direction,
per MIL-STD-883, Method 2007
Random Vibration: ................................... 20G
RMS
, 20 to 2000 Hz,
per MIL-STD-883, Method 2026
Lead Integrity: ............................................... per MIL-STD-883,
Method 2004 conditions B1 and B2
Hermeticity: ................................................. 3 x 10
4
ATM-cc/sec,
per MIL-STD-883,
Method 1014 conditions B1 and B2
Moisture Resistance: .....................10 cycles, per MIL-STD-883,
Method 1014 with step 7 subcycle omitted
Corrosion Resistance: ............ 24 hours, per MIL-STD-883,
Method 1009 condition A
Solderability: .......................................... per MIL-STD-883,
Method 2003 or MIL-STD-202,
Method 208. Except 1 hr. Pre-conditioning
Quality: ............................ In accordance with MIL-1-45208
Resistance to Soldering Heat: ............... per MIL-STD-202,
Method 210 conditions A and C
Marking Permanence: ..... per MIL-STD-883, Method 2015
Thermal Resistance: .... per MIL-STD-883, Method 1012.1
Electrostatic Discharge Sensitivity: ........ per MIL-STD-883,
Method 3015 ECL output models-> 4KV
(Class 2- not sensitive)
CMOS output models-> 2KV
(Class 1 - not sensitive)
Steady-State Life: ... 1000 hrs. @ 125°C per MIL-STD-883,
Method 1005, disregarding frequency shift
Frequency Aging: ........................ <10 ppm shift in 30 days
@ 85°C ambient
OCXOs
TCXOs
Configuring The Part Number...
CB3
Blank = 5.0V
LV = 3.3 Volt
—
—
2 = ±100 ppm C = 0 to 70°C
3 = ±50 ppm I = -40 to 85°C
5 = ±25 ppm
Frequency
(MHz)
400 W. NORTH STREET
•
CARLISLE, PA 17013
Phone: 717-243-5929
•
Fax: 717-243-0079
•
Web: www.ctscorp.com
Revised October 31, 2001
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