IQXT-318 Datasheet, PDF (1/3 Pages) IQD Frequency Products Ltd – TCXO Specification

ISSUE 1; January 2016
Description
The IQXT-318 uses ASIC technology and is designed to meet
the short and medium term stability requirements of packet
network synchronisation for Small Cells. The oscillator has low
jitter to meet network interface requirements (e.g. 10GE) and
low phase noise to meet radio interface requirements of LTE-A
(TS 36.104) and WCDMA (TS 25.104) transceivers. The
IQXT-318 is the ideal choice for Small Cell synchronisation
requirements.
FEATURES:
Patented ‘varactor linearisation’ removes the effects of tilt
when using voltage control.
HCMOS and Clipped Sinewave output options available.
LTE phase noise compliant.
Temperature sensor option.
APPLICATIONS:
Small Cells -
WCDMA
LTE
LTE‐A
Standard Frequencies: 19.20MHz, 25.0MHz, 24.5760MHz,
26.0MHz, 30.720MHz, 38.40MHz and 40.0MHz.
Frequency Parameters
Frequency
19.2MHz to 40.0MHz
Frequency Tolerance
±1.00ppm
Tolerance Condition
@ 25°C ±1°C
In‐service Short-term Frequency Stability (all effects for
24hrs): ±50ppb to ±250ppb
Ageing:
±20ppb max/day
±200ppb max/month
±1ppm max/year
±3ppm max over 10yrs
Frequency Slope ΔF/ΔT (in still air): ±20ppb/°C to ±100ppb/°C
Acceleration Sensitivity (gamma vector of all 3 axes from 30 to
1500Hz): Typically 2ppb/G max
Supply Voltage Variation (±2% change @ 25°C ref to
frequency @ nominal Vs): ±10ppb typ
Load Variation:
HCMOS (±1pF change @ 25°C ref to frequency @ nominal
load): ±10ppb typ
Clipped Sine (±2% change @ 25°C ref to frequency @
nominal load): ±10ppb typ
Reflow Variation (after 1hr recovery @ 25°C): ±0.5ppm max
Temperature Rate of Change (maximum rate of change of
temperature condition for guaranteed stability specifications):
1°C/min max
Electrical Parameters
Supply Voltage Range: 2.5V to 5.7V
(Standard Voltages are 3.0 & 3.3; other values available on
request)
Supply Current:
HCMOS: 4mA typ
Clipped Sine: 2mA typ
TCXO Specification
IQXT-318
Outline (mm)
Example Phase Noise @ 19.20MHz
Example Phase Noise @ 26.00MHz
Sales Office Contact Details:
UK: [phone]
Germany: 0800 1808 443
France: 0800 901 383
USA: +1.760.318.2824
Printed on 26 Apr 16 12:03 using Model Data Sheet V1.2550
Email: [e-mail]
Web: www.iqdfrequencyproducts.com
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