描述 Description

LVPECL output crystal oscillator using a high frequency

fundamental crystal to give very low jitter. Hermetically sealed

ceramic package with a seam sealed metal lid.

Model IQXO-624

Model Issue number 4

Note: Operating temperature ranges -40 to 105°C and -40 to

125°C are intended for industrial use and not for safety critical

applications such as automotive. Please contact IQD for

alternative options.

Frequency Parameters

Frequency 156.250MHz

Frequency Stability ±50.00ppm

Operating Temperature Range -40.00 to 105.00°C

Ageing ±3ppm max per year @25°C

Electrical Parameters

Supply Voltage 3.3V ±5%

Current Draw 50.000mA max

Output Details

Output Compatibility LVPECL

Drive Capability 50Ω terminated to Vs-2.0V

Rise and Fall Time 0.5ns max

Duty Cycle 45/55% max

Output Voltage Levels:

Output Low (VoL): 1.680V max

Output High (VoH): 2.275V min

Output Control

Standby Operation:

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

Logic ‘0’ (30% Vs max) to pad 1 disables oscillator output.

No connection to pad 1 enables oscillator output due to

internal pull-up resistor.

Standby Current: 10μA max

Start-up Time: 10ms max

Noise Parameters

Phase Jitter (12kHz to 20MHz): 300fs max

Phase Jitter (12kHz to 20MHz):

@100MHz: 155fs rms typ

@125MHz: 132fs rms typ

@156.25MHz: 106fs rms typ

Environmental Parameters

Storage Temperature Range: –55 to 125°C

Shock: 1500g, 0.5ms, 3 times for each surface, total 18 times.

Vibration: Frequency range: 20~2000Hz, peak to peak

amplitude: 1.52mm, peak acceleration: 20g (196m/s2), 3

directions (X, Y, Z), each cycle: 20 minutes, 4 cycles for each

direction.