LFTCXO070028CUTT - IQD Frequency Products

Part No. + Packaging: LFTCXO070028Cutt

TCXO Specification

Outline (mm)

Pb-Free Reflow

Description

The IQXT-260-6 employs an analogue ASIC for the oscillator

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

2.0mm size package.

IQXT-260-6

Model

Model Issue number 1

Frequency Parameters

Frequency 26.0MHz

Frequency Tolerance ±1.00ppm

@ 25°C ±2°CTolerance Condition

Frequency Stability ±0.50ppm

-40.00 to 85.00°C

Operating Temperature Range

Ageing:

±1ppm max over 1yr @ 25°C

±1.5ppm max over 2yrs @ 25°C

±2.5ppm max over 5yrs @ 25°C

±5ppm max over 10yrs @ 25°C

Frequency Stability: TA varied over -30 to 85°C, measurement

referenced to frequency observed with Fref=(Fmax+Fmin)/2,

Vs=2.8V and load=10kΩ//10pF: ±0.5ppm max

Frequency Stability: TA varied over -40 to -30°C, measurement

referenced to frequency observed with Fref=(Fmax+Fmin)/2,

Vs=2.8V and load=10kΩ//10pF: ±3ppm max

Frequency Slope (minimum of one frequency reading every

2°C):

-20 to 65°C: 0.05ppm/°C max

-30 to 85°C: 0.1ppm/°C max

-40 to -30°C: 0.35ppm/°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 (±5% change @ 25°C): ±0.1ppm max

Reflow Variation (after two consecutive reflows as per profile

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

Root Allan Variance (Tau=1sec): 0.3ppb max

G Sensitivity (within 30Hz to 1500Hz): 2ppb/G 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

2.8V nominal

Supply Voltage

1.50mACurrent Draw

Supply Voltage Range: 1.7V min to 3.3V max

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

1.5mA max

Note: Nominal supply voltage applies for all measurements

unless otherwise stated.

Sales Office Contact Details:

USA: +1.760.318.2824

France: 0800 901 383

UK: +44 (0)1460 270200

Germany: 0800 1808 443

Email: info@iqdfrequencyproducts.com

Web: www.iqdfrequencyproducts.com

Printed on 26 May 16 23:14 using Part Data Sheet V1.00014 Page 1 of 2

Part No. + Packaging: LFTCXO070028Cutt

TCXO Specification

Output Details

Output Compatability Clipped Sine

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):

2ms max

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

frequency): 2ms max

Output: DC coupled

Note: AC-coupled output requires an external capacitor, ≥1nF

recommended.

Noise Parameters

Phase Noise @ 25°C (typ):

-62dBc/Hz @ 1Hz

-91dBc/Hz @ 10Hz

-115dBc/Hz @ 100Hz

-136dBc/Hz @ 1kHz

-150dBc/Hz @ 10kHz

-152dBc/Hz @ 100kHz

Harmonics: -8dBc max

Environmental Parameters

Storage Temperature Range: -40 to 85°C

Shock: MIL-STD-202 M213: Half sine wave acceleration of

3000G peak amplitude, duration 0.3ms, velocity 12.3ft/s.

Vibration: JESD22-B103-B: 10G peak acceleration for 20mins,

12 cycles in each of the 3 orientations, tested from

10-2000Hz.

Moisture Resistance: MIL-STD-202 M106g: 1000hrs @ 85°C,

85% RH, biased.

Thermal Cycling: JESD22 Method JA-104C: 1000 temperature

cycles, where each cycle consists of a 25mins soak time @

-40°C followed by a 25mins soak time @ 85°C, with a 60secs

maximum transition time between temperatures, air to air

transition.

Note: Frequency shift ≤1ppm after environmental conditions.

Manufacturing Details

Maximum Process Temperature: 260°C (40secs max)

Compliance

Compliant

RoHS Status (2011/65/EU)

Compliant

REACh Status

MSL Rating (JDEC-STD-033): Not Applicable

Packaging Details

In tape, cut from a reel

Pack Style: Cutt

Pack Size: 100

Alternative packing option available