
CLOCK
OSCILLA
TORS
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
IQXO-350 CLOCK OSCILLATORS
ISSUE 19; 1 nOvEmbER 2008 - RoHS 2002/95/EC
Description
14-pin DIL compatible resistance welded enclosure,
hermetically sealed with glass to metal seal
Package Outline
14-pin DIL
Frequency Range
1kHz to 160MHz
Output Compatibility & Load
HCMOS/TTL
Drive Capability:
50pF max or 10TTL (<70MHz)
30pF max (>70 to 160MHz)
15pF max (1 to < 100kHz)
Standard Frequency Stabilities
±25ppm, ±50ppm, ±100ppm (over operating temperature
range)
Operating Temperature Ranges
0 to 70°C (IQXO-350)
–40 to 85°C (IQXO-350I)
Storage Temperature Range
–55 to 125°C
Environmental Specification
Terminal Strength: 0.91kg max force perpendicular to top and
bottom
Hermetic Seal: not to exceed 1 x 10
-8
mBar litres of Helium
leakage
Solderability: MIL-STD-202E, Method 208C
Vibration: 10 to 55Hz 0.76mm displacement, sweep 60
seconds, duration 2 hours
Rapid Change of Temperature over Operating Temperature
Range: 10 cycles
Shock: 981m/s
2
for 6ms, three shocks in each direction along
the three mutually perpendicular planes
marking Includes
Model Number + Operating Temperature Code (if applicable)
+ Frequency Stability Code + Frequency Tolerance Code
(Optional) + Frequency + Date Code
Packaging
Bulk
minimum Order Information Required
Frequency + Model Number + Operating Temperature
(if applicable) + Frequency Stability
Outline (mm)
Pin connections
1. N/C
7. GND
8. Output
14. +Vs
5.1
max
4.0
min
0.8
max
0.45
7.62
13.08
max
15.24
21.0 max
1
7
14
8
Output Waveform
tr
tf
t
T
90%Vs
10%Vs
50%Vs
0V
+Vs
2.4V
0.4V
Duty cycle = t x 100(%)
T
1.4V
Test Circuit
*Inclusive of jigging and equipment capacitance
+Vs
Oscillator
A
V
1
7
14
8
Oscilloscope
Frequency counter
15pF*
0.1 F