IQXO-35, -36 Industrial Oscillator ISSUE 5; 19 OCTOBER 1999 Tri-state Operation (IQXO-36) Delivery Options ■ 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 ■ Please contact our sales office for current leadtimes Output Compatibility ■ HCMOS/TTL ■ Drive Capability: 50pF or 10TTL ■ Non tri-state (IQXO-35) ■ Tri-state (IQXO-36) Marking Package Outline 8-pin DIL compatible resistance welded enclosure, hermetically sealed with glass to metal seals and high environmental performance ■ ±25ppm, ±50ppm, ±100ppm (over operating temperature range) ■ Frequency Tolerance Code (Optional) ■ Frequency ■ Date Code (Year/Week) ■ ±5ppm, ±10ppm, ±25ppm Operating Temperature Range ■ Frequency Stability Code Minimum Order Information Required Frequency Tolerance @ 25°C (Optional) ■ ■ Frequency + Model Number + Frequency Stability Outline in mm –40 to 85°C 0.8 max Storage Temperature Range ■ –55 to 125°C Environmental Specification 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. ■ Vibration: 10 to 60Hz 0.75mm displacement, 60 to 2000Hz 98.1m/s2 acceleration, 30 minutes in each of three mutually perpendicular planes 4.0 min ∅0.5 ■ ■ 11.8 13.20 Pin connections 1. N/C or Enable/Disable. 4. GND 5. Output 8. +Vs 1 4 8 5 13.20 LEADED SPXOs Standard Frequency Stabilities Model number 5.8 max ■ ■ 7.62SQ Output Waveform - HCMOS/TTL tf +Vs tr 90%Vs over Operating 50%Vs 2.4V 1.4V 10%Vs 0.4V 0V t T Duty cycle = t x 100(%) T 48 Electrical Specifications - maximum limiting values when measured in HCMOS test circuit. Frequency Range Frequency Stability Supply Voltage Supply Current Rise Time(tr) Fall Time(tf) Duty Cycle Model Number 500.0kHz to < 5.0MHz ±25ppm, ±50ppm, ±100ppm 5V±0.25V 20mA 15ns 15ns 45/55% IQXO-35, -36 5.0 to < 16.0MHz ±25ppm, ±50ppm, ±100ppm 5V±0.25V 20mA 10ns 10ns 45/55% IQXO-35, -36 16.0 to < 30.0MHz ±25ppm, ±50ppm, ±100ppm 5V±0.25V 30mA 10ns 10ns 45/55% IQXO-35, -36 30.0 to < 50.0MHz ±25ppm, ±50ppm, ±100ppm 5V±0.25V 40mA 8ns 8ns 45/55% IQXO-35, -36 50.0 to 70.0MHz ±25ppm, ±50ppm, ±100ppm 5V±0.25V 50mA 6ns 6ns 40/60% IQXO-35, -36 Ordering Example 22.0MHz IQXO-35 B F Frequency Model number -35 = Non tri-state, -36 = Tri-state Frequency Stability: A = ±25ppm, B = ±50ppm, C = ±100ppm LEADED SPXOs Frequency Tolerance @ 25°C: D = ±5ppm; E = ±10ppm; F = ±25ppm Please note: Code combination A F is not available Test Circuit - TTL Test Circuit - HCMOS Oscillator A +Vs A +Vs Oscillator 1 4 85 14 8 5 D1 400R D2 V 0.1µF 15pF* Oscilloscope V 0.1µF 15pF* D3 Oscilloscope D4 Frequency counter Frequency counter D1 to D4 = IN916 or equivalent *Inclusive of jigging & equipment capacitance Note: Pin 1 = No connection on non tri-state models *Inclusive of jigging & equipment capacitance Note: Pin 1 = No connection on non tri-state models 49