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VEM42T3-15.36-2.5/-20+70

Description
HCMOS Output Clock Oscillator, 15.36MHz Nom, SMD, 4 PIN
CategoryPassive components    oscillator   
File Size160KB,1 Pages
ManufacturerEuroquartz
Websitehttp://www.euroquartz.co.uk/
Download Datasheet Parametric View All

VEM42T3-15.36-2.5/-20+70 Overview

HCMOS Output Clock Oscillator, 15.36MHz Nom, SMD, 4 PIN

VEM42T3-15.36-2.5/-20+70 Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
Reach Compliance Codecompliant
Ageing1 PPM/FIRST YEAR
Maximum control voltage2.5 V
Minimum control voltage0.5 V
maximum descent time10 ns
Frequency Adjustment - MechanicalYES
Frequency offset/pull rate12 ppm
frequency stability2.5%
Installation featuresSURFACE MOUNT
Nominal operating frequency15.36 MHz
Maximum operating temperature70 °C
Minimum operating temperature-20 °C
Oscillator typeHCMOS
Output load15 pF
physical size11.4mm x 9.6mm x 2.5mm
longest rise time10 ns
Nominal supply voltage3 V
surface mountYES
maximum symmetry60/40 %
Base Number Matches1
EURO
QUARTZ
SMD package 11.4 x 9.6 x 2.5mm
Wide frequency range: 1.6MHz to 156MHz
Close tolerance stabilities from ±0.5ppm over 0° to +50°C
±1ppm over -40 to +85°C also available
EFC tuning ±5ppm to ±12ppm
Supply voltage 2.8 Volts to 5.0 Volts
DESCRIPTION
VEM42T series VCTCXOs are packaged in the industry-standard 11.4
x 9.6 x 2.5mm package. Close tolerances are available from
±0.5ppm over 0° to 50°C or ±1ppm over -40° to +85°C. The output
is controllable by EFC enabling output control of ±5ppm to ±12ppm.
The parts have a 0.01uF decoupling capacitor built-in.
SPECIFICATION
Product Series Code:
Frequency Range:
Output Waveform:
Standard Frequencies:
VEM42T
1.6MHz to 156.0MHz
Square wave (HCMOS)
9.6, 10.0, 12.80, 13.0, 14.40,
15.36, 16.384, 19.200,
19.44 and 19.68MHz.
(Partial
list)
See table
±1.0 ppm max. first year
±0.3 ppm max. ±5% change
±0.3 ppm max. ±10% change
±1ppm max. for one reflow
(Measured after 24 hours)
+2.8 VDC (Code ‘28’)
+3.0 VDC (Code ‘3’)
+3.3 VDC (Code ‘33’)
+5.0 VDC (Code ‘5’)
80% Vdd min.
10% Vdd max.
10ns max. (20%~80%)
50%±10% (at 50%Vdd)
10ms max.
30mA max. (Freq. dependent)
±5 to ±12ppm with Vcon =
+1.5V±1.0V. Note: All supply
versions have +1.5V Vcon.
Positive (inc. Vcon = inc. Freq.)
10% max.
15pF
See table
AC block, DC coupled
-50° to +100°C
VEM42T Series TCXO
Voltage-Controlled HCMOS 11.4 x 9.6 x 2.5mm SMD
VEM42T - OUTLINES AND DIMENSIONS
Operating Temperature Range:
Frequency Stability
vs. Ageing:
vs. Voltage Change:
vs. Load Change:
vs. Reflow:
Supply Voltage:
Output Voltage Levels
Logic ‘1’ HIGH:
Logic ‘0’ LOW:
Rise & Fall Times:
Duty Cycle (Symmetry):
Start-up Time:
Current Consumption:
E.F.C. Tuning:
VEM42T - TEST CIRCUIT
Slope Polarity:
Linearity:
Output Load:
SSB Phase Noise:
Output Format:
Storage Temperature:
FREQUENCY STABILITY OVER TEMPERATURE
Frequency Stability (ppm)
0 ~ +50
-10 ~ +60
Temperature
Range (°C)
-20 ~ +70
-30 ~ +75
-40 ~ +85
P
±0.5
P
ASK
x
x
x
±1.0
P
P
P
P
P
±1.5
P
P
P
P
P
±2.0
P
P
P
P
P
±2.5
P
P
P
P
P
VEM42T - PART NUMBERING PROCEDURE
Example:
VEM42T3-19.44-2.5/-30+75
= available, x = not available, ASK = call Technical Sales
= standard specification
PHASE NOISE
Offset
(Hz)
SSB Phase Noise
at 25°C
VEM42T
100MHz
(dBc/Hz)
10
100
1k
10k
100k
-72
-110
-125
-132
-125
Series Description
Supply Voltage
28 = 2.8 VDC
3 = 3.0 VDC
33 = 3.3 VDC
5 = 5.0 VDC
Frequency
Stability over OTR (ppm)
Operating Temperature Range (OTR) (°C)
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
Inline instructions in TI DSP TMS320C66x study notes
/********************************************************************************//* C6X.H v7.4.12 *//********************************************************************************/#include "vect.h"...
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