CFPO-23SXALF datasheet, PDF - EEWORLD Datasheet

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CFPO-23SXALF: Descriptionhigh stability crystal oscillators; File Size60KB，3 Pages; ManufacturerETC2

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CFPO-23SXALF Overview

high stability crystal oscillators

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CFPO-20,-21,-22,-23 TC-OCXO

ISSUE 2; 20 APRIL 2006

Preliminary Specification

Recommended for new designs

Delivery Options

■

Please contact our sales office for current leadtimes

Description

■

A series of high stability crystal oscillators, using a

hybrid combination of oven control and temperature

compensation capable of sub 0.05ppm stability. By

using a loosely controlled miniature oven that is

thermally isolated from the ambient the frequency

stability of a crystal oscillator is enhanced. Stability is

further improved by compensating the residual

frequency error with C-MAC’s proprietary ASIC “Pluto”

a single chip oscillator with analogue compensation

circuit. The combination of these two functions result in

an oscillator with the best stability / power consumption

ratio and fast warm-up, making it particularly suitable

for battery powered applications

Standard Frequencies

■

HCMOS only: 5, 6.4, 8, 8.192MHz

■

HCMOS & Clipped Sinewave 10.0, 12.8, 16.0, 16.384

and 20.0MHz

■

Other frequencies in the range 1.25 to 33MHz may be

available upon request

Waveform

■

Standard

Square HCMOS 15pF load

Clipped Sinewave 10kΩ

10pF AC-coupled

■

Optional

Square ACMOS 50pF max. load

Sinewave 10kΩ // 10pF DC-coupled

Supply Voltage

■

Operating range 3.3V or 5.0V, see table.

Input Power

■

Warm-up

■

Steady state @ 25°C

■

Steady state @ -20°C

■

Steady state @ -40°C

-20 to 70°C

< 1.0W

< 270mW

< 400mW

-40 to 85°C

< 1.0W

< 350mW

< 525mW

< 600mW

Frequency Stability

■

Temperature: see table

■

Supply Voltage Variation, ±5% ±0.1ppm typ.

■

Load Coefficient, 15pF ±5pf (HCMOS) or 10kΩ // 10pF

±10% (clipped sinewave) ±0.1ppm typ.

Frequency Adjustment, three options

A Ageing adjustment by means of external Voltage Control

applied to pad 1 (standard option)

■

Range (frequency < 20MHz) > ±5ppm

■

Range (frequency > 20MHz) > ±7ppm

■

Linearity

< 0.5%

■

Slope

Positive

■

Input Resistance

> 100kΩ

■

Modulation Bandwidth

> 2kHz

■

Standard control voltage range 1.5V±1V

B Ageing adjustment by means of an external 100kΩ

potentiometer connected as a variable resistor from

pad 1 to ground.

■

Range (frequency < 20MHz)

> ±5ppm

■

Range (frequency > 20MHz)

> ±7ppm

C No frequency adjustment

■

Initial calibration

< ±0.5ppm

Storage Temperature Range

■

-55 to 125°C

Environmental Specification

Vibration: IEC 60068-2-6, test Fc: 10-60Hz 0.75mm

displacement, 60-2000Hz 100m/s2 (10gn) acceleration,

4 hours in each of three mutually perpendicular axes at

1 octave per minute.

■

Mechanical Shock: IEC 60068-2-27, test Ea; 1000m/s2

(100gn) acceleration for 6ms duration, Half sine pulse,

3 shocks in each direction along three mutually

perpendicular axes (18 shocks total)

Parts with the suffix “LF” on the ordering code and part

number are fully compliant with the European Union

directive 2002/95/EC on the restriction of the use of

certain hazardous substances in electrical and electronic

equipment. Note: The RoHS compliant parts are suitable

for assembly using both Lead-free solders and Lead/Tin

solders.

Marking: Laser Marked

■

OCXOs

■

Warm-up time to reach ±0.01ppm of final frequency

■

< 30 secs. (@25°C)

Ageing

±1ppm

■

±2ppm

■

±3ppm

■

±5ppm

■

±1ppm

■

maximum

in first year, frequency < 20MHz

in first year, frequency > 20MHz

for 10 years, frequency < 20MHz

for 10 years, frequency > 20MHz

after reflow

Marking, includes

■

CMAC

■

Part number (Pxxxx)

■

Pad 1 / Static sensitivity

identifier (triangle)

■

Device date / location code

(YYWWL)

Package

■

Hermetically sealed, industry standard, DIL 14/4

leaded package

Europe Tel: +44 (0)1460 270200

Americas Tel: +1 919 941 9333

Asia

Tel: +86 755 8826 5991

Fax: +44 (0)1460 72578

Fax: +1 919 941 9371

Fax: +86 755 8826 5990

Website: www.cmac.com

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