LFTCXO070034BULK datasheet, PDF

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LFTCXO070034BULK: DescriptionClipped Sine Output Oscillator; CategoryPassive components oscillator; File Size251KB，2 Pages; ManufacturerIQD Frequency Products

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LFTCXO070034BULK Overview

Clipped Sine Output Oscillator

LFTCXO070034BULK Parametric

Parameter Name	Attribute value
Maker	IQD Frequency Products
Reach Compliance Code	compliant
Is Samacsys	N
Other features	ENABLE/DISABLE FUNCTION; BULK
Ageing	3 PPM/3 YEAR
Frequency Adjustment - Mechanical	NO
frequency stability	0.5%
Installation features	SURFACE MOUNT
Nominal operating frequency	26 MHz
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Oscillator type	CLIPPED SINE
Output impedance	10000 Ω
Output level	0.8 V
physical size	2.5mm x 2.0mm x 0.8mm
Maximum supply voltage	2 V
Minimum supply voltage	1.75 V
Nominal supply voltage	1.88 V
surface mount	YES
Base Number Matches	1

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TCXO Specification

Part No. + Packaging:

LFTCXO070034Bulk

Description

The IQXT-260-12 employs an analogue ASIC for the oscillator

and a high-order temperature compensation circuit in a 2.5 x

2.0mm size package.

Model

IQXT-260-12

Model Issue number

Frequency Parameters

Frequency

Frequency Tolerance

Tolerance Condition

Frequency Stability

26.0MHz

±1.00ppm

@ 25°C ±2°C

0.50ppm

Operating Temperature Range

-40.00 to 85.00°C

Ageing

±3ppm max over 3yrs @ 25°C

Frequency Stability: TA varied over operating temperature

range, measurement referenced to frequency observed with

Fref=(Fmax+Fmin)/2, Vs=1.88V and load=10kΩ//10pF.

Frequency Slope (minimum of one frequency reading every

2°C):

-30 to 85°C: 0.1ppm/°C max

-40 to -30°C: 0.5ppm/°C max

Static Temperature Hysteresis (frequency change after

reciprocal temperature ramped over the operating range -

frequency measured before and after @ 25°C): 0.6ppm max

Supply Voltage Variation (±5% change @ 25°C): ±0.1ppm max

Load Variation (±10% change @ 25°C): ±0.2ppm max

Reflow Variation (after two consecutive reflows as per profile

shown and 1hr recovery @ 25°C): ±1ppm max

Note: Parts should be shielded from drafts causing unexpected

thermal gradients. Temperature changes due to ambient air

currents can lead to short term frequency drift.

Electrical Parameters

Outline (mm)

1.88V nominal

Supply Voltage

Current Draw

2.00mA

Supply Voltage Range: 1.75V min to 2V max

Supply Current (@ TA=25°C, Vs max and load=10kΩ//10pF):

2mA max

Output Details

Pb-Free Reflow

Clipped Sine

Output Compatability

Drive Capability

10kΩ//10pF ±10%

Output Voltage Level (@ TA=25°C, Vs min and

load=10kΩ//10pF): 0.8V pk-pk min

Start Up Time (amplitude within 90% of specified output level):

0.5ms max

Start Up Time (frequency within ±0.5ppm of steady state

frequency): 1.5ms max

Output: DC coupled

Note: AC-coupled output requires an external capacitor,

≥1nF

recommended.

Sales Office Contact Details:

UK: +44 (0)1460 270200

Germany: 0800 1808 443

France: 0800 901 383

USA: +1 408.273.4530

Email: info@iqdfrequencyproducts.com

Web: www.iqdfrequencyproducts.com

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