IQVCXO-172, -173 LEADED VCXOs
ISSUE 12; 1 nOVEmbEr 2008 - roHS 2002/95/EC
Description
0.8 max
Outline (mm)
8.0 max
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VCXOs
A 14-pin DIL voltage controlled crystal oscillator (VCXO) in a
hermetically sealed metal package
14-pin DIL
1 to 45MHz
HCMOS/LS TTL
Drive Capability: 15pF/10LS TTL max
±25ppm, ±50ppm @ Vc = 2.5V (inclusive of supply voltage
and output load variations over the operating temperature
range)
Package Outline
Frequency range
Output Compatibility & Load
Ø0.45
4.0 min
Pin Connections
1. Voltage Control
7. GND
8. Output
14. +Vs
14
15.24
8
Frequency Stabilities
21.0 max
Operating Temperature ranges
0 to 70°C
(IQVCXO-172, -173)
–40 to 85°C (IQVCXO-172I, -173I)
Output Waveform
Storage Temperature range
+Vs
90%Vs
tf
13.08 max
1
7.62
7
tr
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–55 to 125°C
2.5V ±2.0V
±50ppm min (IQVCXO-172)
±100ppm min (IQVCXO-173)
Positive <±10%
>50k
W
>10kHz
Model Number + Frequency + Operating Temperature Code
(if applicable) + Frequency Stability Code + Date Code
Bulk
Frequency + Model Number + Operating Temperature Code
(if applicable) + Frequency Stability
Voltage Control (pin 1)
50%Vs
Pullability
10%Vs
0V
t
2.4V
1.4V
0.4V
T
Linearity
Input Impedance (voltage control, pin 1)
modulation bandwidth
marking Includes
Duty cycle = t x 100(%)
T
Packaging
minimum Order Information required
IQD Frequency Products Ltd, Station Road, Crewkerne, Somerset TA18 8AR, United Kingdom
Tel: +44 (1460) 270200; Fax: +44 (1460) 72578;
Email: info@iqdfrequencyproducts.com Web: www.iqdfrequencyproducts.com
Electrical Specification - maximum limiting values
Frequency Range Frequency Stability
1.0 to < 24.0MHz
1.0 to < 24.0MHz
24.0 to < 45.0MHz
24.0 to < 45.0MHz
±25ppm
±25ppm, ±50ppm
±25ppm
±25ppm, ±50ppm
40mA
Supply
Voltage
5.0 ±0.25V
Supply
Current
20mA
Pullability
±50ppm min
±100ppm min
±50ppm min
±100ppm min
Rise Time (tr)
10ns
Fall Time (tf)
10ns
Duty Cycle
40/60%
Model Number
IQVCXO-172
IQVCXO-172I
IQVCXO-173
IQVCXO-173I
IQVCXO-172
IQVCXO-172I
IQVCXO-173
IQVCXO-173I
22.0MHz IQXO-172 I B
Ordering Example
Frequency
Model No.
Operating Temperature Code: I = –40 to 85°C; not applicable for 0 to 70°C
Frequency Stability: A = ±25ppm; B = ±50ppm
Some combinations of specification may not be available, please check with our sales office.
Typical Voltage Control Curve @25°C & 20.0mHz
Test Circuit
50
25
A
10.0k
2.0k
Oscillator
1
7
14 8
V
V
0.1µF
+Vs
Df/f
0
(ppm)
0
15pF* Oscilloscope
Frequency counter
-25
-50
*Inclusive of jigging and equipment capacitance
0.5
1.5
2.5
3.5
4.5 Vcont(T)
IQD Frequency Products Ltd, Station Road, Crewkerne, Somerset TA18 8AR, United Kingdom
Tel: +44 (1460) 270200; Fax: +44 (1460) 72578;
Email: info@iqdfrequencyproducts.com Web: www.iqdfrequencyproducts.com
VCXOs
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