EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 info@euroquartz.co.uk www.euroquartz.co.uk
EURO
QUARTZ
7 x 5 x 2.3mm SMD HCMOS
MB572T TCXO
DESCRIPTION
Quick turnaround production
Low Jitter: 70ps peak to peak (typical)
Low phase noise: -114dBc at1kHz offset (133MHz)
Custom frequencies are easily configured
Supply voltages 2.8V, 3.0V or 3.3VDC
TCXO or VCTCXOs CMOS square wave output
The MB572T TCXO is packaged in 7 x 5mm, 4 pad ceramic SMD
package. The part has a squarewave (CMOS) output and a tight
stability over temperature. The part may be specified as a TCXO or a
Voltage-Controlled TCXO (VCTCXO). A 0.01mF decoupling capacitor
is built-in.
MB572T - OUTLINES AND DIMENSIONS
SPECIFICATION
Product Series Code
TCXO: MB572T
VCTCXO: VMB572T
Frequency Range: 1.0MHz to 200.0MHz
Output Waveform: Squarewave, HCMOS
Initial Calibration Tolerance: <±2.0ppm at +25°±2°C
Frequency Stability
vs. Temperature Change: See table
vs. Ageing: ±1.0 ppm max. first year
vs. Voltage Change: ±0.3 ppm max. ±5% change
vs. Load Change: ±0.3 ppm max. ±10% change
vs. Reflow (SMD type): ±1.0ppm max. for one reflow
(Measured after 24 hours)
Supply Voltage: +2.8VDC ±5%
+3.0VDC ±5%
+3.3VDC ±5%
Output Logic Levels: Logic High: 90% Vdd min.
Logic Low: 10% Vdd max.
Rise and Fall Times: 10ns max.
Duty Cycle: 50±10% standard,
50±5% option
Start-up Time: 5ms typical, 10ms max.
Current Consumption
at 25.0MHz: 8mA max.
at 200.0MHz: 20mA max.
Output Load: 15pF
Storage Temperature: -55~+125°C
RoHS Status: RoHS Compliant and pB free
PART NUMBER FORMAT
Example:
MB572T 28 - 38.880 - 2.5 / -30+85
Control Voltage Centre: Standard = +1.5±1.0Volts (for all voltages)
Frequency Deviation: ±5.0ppm min. (Vcon = +1.5V±1.0V)
Slope Polarity: Positive (increase of control voltage increases
output frequency.)
Input Impedance: 50k minimum
Modulation Bandwidth: 20kHz minimum
Linearity: ±10% maximum
VMB572T VOLTAGE CONTROL SPECIFICATION
Offset 10Hz 100Hz 1kHz 10kHz 100k
Hz
MB572T at
133.333MHz
(dBc/Hz) -76 -102 -114 -110 -100
SSB PHASE NOISE at 25°C
Frequency Stability (ppm) ±0.5 ±1.0 ±1.5 ±2.0 ±2.5 ±3.0
Temperature
Range (°C)
0 ~ +50 P P P P P P
-10 ~ +60 ASK P P P P P
-20 ~ +70 xP P P P P
-30 ~ +75 xP P P P PP
-40 ~ +85 xP P P P P
P = available, x = not available, ASK = Please contact us
FREQUENCY STABILITY OVER TEMPERATURE
Series Description
TCXO: MB572T
VCTCXO: VMB572T
Supply Voltage
28: 2.8VDC
30: 3.0VDC
33: 3.3VDC
Frequency MHz
Stability ±ppm
Operating Temperature Range
