IQXO-35, -36 Industrial Oscillator
ISSUE 5; 19 OCTOBER 1999 Delivery Options
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Tri-state Operation (IQXO-36)
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Please contact our sales office for current leadtimes
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Logic ‘0’ to pin 1 disables oscillator output; when disabled the oscillator output goes to the high impedance state No connection or Logic ‘1’ to pin enables oscillator output Maximum ‘pull-down’ resistance required to disable output = 20kΩ Disable current 50µA typical
Output Compatibility
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HCMOS/TTL Drive Capability: 50pF or 10TTL Non tri-state (IQXO-35)
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Tri-state (IQXO-36) Marking
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Package Outline
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Model number Frequency Stability Code Frequency Tolerance Code (Optional) Frequency Date Code (Year/Week)
8-pin DIL compatible resistance welded enclosure, hermetically sealed with glass to metal seals and high environmental performance
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Standard Frequency Stabilities
LEADED SPXOs
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±25ppm, ±50ppm, ±100ppm (over operating temperature range)
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Frequency Tolerance @ 25°C (Optional)
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Minimum Order Information Required
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±5ppm, ±10ppm, ±25ppm
Frequency + Model Number + Frequency Stability
Operating Temperature Range
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Outline in mm
0.8 max 5.8 max tr 13.20 8 5 7.62SQ tf 4.0 min 13.20 Pin connections 1. N/C or Enable/Disable. 4. GND 5. Output 8. +Vs 1 4
–40 to 85°C
11.8
Storage Temperature Range
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–55 to 125°C
Environmental Specification
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∅0.5
Acceleration: 490m/s2 for 1 minute in the ‘Y1’ plane Bump: 4000 bumps at 390m/s2 in each of the three mutually perpendicular planes Hermetic Seal: not to exceed 1 x 10-8 mBar litres of Helium leakage Humidity: steady state: in accordance with test Ca of IEC 60068-2-3, for 56 days at 40°C at a relative humidity of 93%, cyclic: in accordance with test Db variant of IEC 60068-2-30, at severity b), 55°C for six cycles Shock: 981m/s2 for 6ms, three shocks in each direction along the three mutually perpendicular planes Solderability: BS2011 test TA Rapid Change of Temperature Temperature Range: 10 cycles. over Operating
50%Vs
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Output Waveform - HCMOS/TTL
+Vs 90%Vs
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Vibration: 10 to 60Hz 0.75mm displacement, 60 to 2000Hz 98.1m/s2 acceleration, 30 minutes in each of three mutually perpendicular planes
2.4V
10%Vs
1.4V 0.4V
T Duty cycle = t x 100(%) T
0V
t
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Electrical Specifications - maximum limiting values when measured in HCMOS test circuit. Frequency Range 500.0kHz to < 5.0MHz 5.0 to < 16.0MHz 16.0 to < 30.0MHz 30.0 to < 50.0MHz 50.0 to 70.0MHz Ordering Example Frequency Model number -35 = Non tri-state, -36 = Tri-state Frequency Stability: A = ±25ppm, B = ±50ppm, C = ±100ppm
LEADED SPXOs
Frequency Stability ±25ppm, ±50ppm, ±100ppm ±25ppm, ±50ppm, ±100ppm ±25ppm, ±50ppm, ±100ppm ±25ppm, ±50ppm, ±100ppm ±25ppm, ±50ppm, ±100ppm
Supply Voltage 5V±0.25V 5V±0.25V 5V±0.25V 5V±0.25V 5V±0.25V
Supply Current 20mA 20mA 30mA 40mA 50mA
Rise Time(tr) 15ns 10ns 10ns 8ns 6ns 22.0MHz
Fall Time(tf) 15ns 10ns 10ns 8ns 6ns IQXO-35 BF
Duty Cycle 45/55% 45/55% 45/55% 45/55% 40/60%
Model Number IQXO-35, -36 IQXO-35, -36 IQXO-35, -36 IQXO-35, -36 IQXO-35, -36
Frequency Tolerance @ 25°C: D = ±5ppm; E = ±10ppm; F = ±25ppm Please note: Code combination A F is not available
Test Circuit - HCMOS
Oscillator 14 85 A +Vs
Test Circuit - TTL
A Oscillator 14 85 +Vs
D1
400R D2
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0.1 µF 15pF*
Oscilloscope
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0.1 µF
15pF*
D3 D4
Oscilloscope
Frequency counter *Inclusive of jigging & equipment capacitance Note: Pin 1 = No connection on non tri-state models
Frequency counter D1 to D4 = IN916 or equivalent *Inclusive of jigging & equipment capacitance Note: Pin 1 = No connection on non tri-state models
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