Outline

Description

Standard 2.5 x 2.0 oscillator in a ceramic package with a

hermetically sealed metal lid.

Model IQXO-791

Model Issue number 2

Frequency Parameters

Frequency 33.33330MHz

Frequency Stability ±25.00ppm

Operating Temperature Range -20.00 to 70.00°C

Ageing ±3ppm max per year @ 25°C

Electrical Parameters

Supply Voltage 3.3V ±10%

Current Draw 20.000mA

Output Details

Output Compatibility HCMOS

Drive Capability 15pF

Rise and Fall Time 7.0ns max

Duty Cycle 40/60%

Output Voltage Levels:

Output Low (VoL): 10%Vs max

Output High (VoH): 90%Vs min

Start Up Time: 10ms max

0.7ms typ to 90% of final amplitude (under ideal conditions @

25°C)

Output Control

Enable/Disable:

Logic ‘1’ (≥70% Vs) to pad 1 enables oscillator output.

Logic ‘0’ (≤30% Vs) to pad 1 disables oscillator output; when

disabled the oscillator output goes to the high impedance

state.

No connection to pad 1 enables oscillator output.

Stand-by Current: 10μA max, 1.0μA typ @ 25°C

Noise Parameters

Period Jitter (pk-pk): ±80ps typ

Period Jitter (1σ): ±10ps typ

Phase Jitter (12kHz to 20MHz): 1ps rms max

Environmental Parameters

Storage Temperature Range: -55 to 125°C

Mechanical Shock: MIL-STD-883, Method 2002, Condition B

(or comparable).

Vibration: MIL-STD-883, Method 2007, Condition A (or

comparable).

Manufacturing Details

Note: Do not connect inductor or bead between pad 2 and

GND as it can make the output unstable.

RoHS Terminations

RoHS Reflow Temp 260°C max for 10secs max