CFSS-3

Spread Spectrum Oscillator Specification

ISSUE 3; April 2016

Outline (mm) ±0.5% = Centre Spread

Test Circuit

Example Output Spectrum (Centre Spread

±1%)

Description

Spread Spectrum surface mount crystal oscillator in a ceramic

package with a hermetically sealed metal lid

±0.5% Centre Spread

±1% Centre Spread

±2% Centre Spread

-1% Down Spread

-2% Down Spread

-4% Down Spread

Frequency Parameters

Frequency

12.0MHz to 168.0MHz

Frequency Stability

±50.00ppm

±5ppm max per year

Ageing

Electrical Parameters

3.3V ±5%

Supply Voltage

Operating Temperature Ranges

-10 to 70°C

Output Details

Output Compatability

CMOS

Drive Capability

15pF max

Modulation Ratios:

Centre Spread ±0.5%, ±1%, ±2%

Down Spread -1%, -2%, -4%

Output Control

Tri-state Operation:

Logic ‘1’ to pad 1 (>80% Vs) enables oscillator output

Logic ‘0’ to pad 1 (<20% Vs) disables oscillator output, the

oscillator output goes to a high impedance state

No connection to pad 1 enables oscillator output

Noise Parameters

Cycle to Cycle Jitter (1σ):

12MHz to <20MHz: 200ps max

20MHz to 168MHz: 100ps max

Environmental Parameters

Storage Temperature Range: -40 to 85°C

Drop: Natural drop, 3 times from 100cm onto a hard wooden

board 30mm thick

Vibration: 10-55Hz, 1.5mm displacement (10Hz-36Hz), 4G

(36Hz-55Hz), sweep time 1min/oct, 2hrs duration in each of 3

mutually perpendicular planes

Printed on 28 Apr 16 14:48 using Model Data Sheet V1.2550

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