Product: TCXO and VCTCXO - "T" Series
Output: TTL/CMOS Square Wave

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Product Summary:

Output Wave Form: Square Wave
TCXO VCTCXO Available
Frequency Range
RoHS Compliant
Equivalent Model
Package Description
Thru-Hole Types
M38T_ VM38T_ 1.6 ~ 156 MHz M38GT_ VM38GT_ 4 pin DIP
M39T_ VM39T_ M39GT_ VM39GT_ 4 pin DIP
M14T_ VM14T_ M14GT_ VM14GT_ 4 pin DIP. Hermetically sealed.
M15T_ VM15T_ M15GT_ VM15GT_ 4 pin DIP. With trimmer.
M8T_ VM8T_ M8GT_ VM8GT_ 4 pin DIP. Half size. Hermetically sealed.
M9T_ VM9T_ M9GT_ VM9GT_ 4 pin DIP. Half size. With trimmer
Gull Wing Surface Mount Types
M55T_ VM55T_ 1.6 ~ 156 MHz M55GT_ VM55GT_ 4 pin gull wing
M47T_ VM47T_ M47GT_ VM47GT_ 4 pin gull wing
M24T_ VM24T_ M24GT_ VM24GT_ 4 pin gull wing. Hermetically sealed.
M25T_ VM25T_ M25GT_ VM25GT_ 4 pin gull wing. With trimmer
M28T_ VM28T_ M28GT_ VM28GT_ 4 pin gull wing. Half size. Hermetically sealed.
M29T_ VM29T_ M29GT_ VM29GT_ 4 pin Gull wing. Half size. With trimmer
Leadless Surface Mount Types
M62T_ VM62T_ 1.6 ~ 156 MHz M62GT_ VM62GT_ 6 pad FR4 base. 2.5 mm H , Not recommended
for new designs. Please use M63T
M63T_ VM62T_ M62GT_ VM62GT_ 6 pad FR4 base. 2.5 mm H
M42T_ VM42T_ M42GT_ VM42GT_ 4 pad FR4 base. 2.5mm H , Not recommended
for new designs. Please use M43T
M43T_ VM43T_ M43GT_ VM43GT_ 4 pad FR4 base. 2.5mm H
M64T_ VM64T_ M64GT_ VM64GT_ 6 pad FR4 base. 4.7 mm H
M44T_ VM44T_ M44GT_ VM44GT_ 4 pad FR4 base. 4.7 mm H
M572T VM572T Same(1) Same(1) 4 pad ceramic base. 5 x 7 mm
M53T VM53T Under Development Same(1) Same(1) 4 pad ceramic base. 5 x 3.2 mm


"_" is voltage code. For RoHS equivalent model please add "G" after the package code. M14TG3, for example, would be a Voltage Code "3" RoHS-compliant S series M14 package.

(1) M57T, VM57T, M53T, and VM53T are RoHS compliant and lead-free products.

Note: Frequency tuning by built-in mechanical trimmer (variable capacitor) is standard for all models except models M57T, VM57T, M53T, and VM53T. Please specify when ordering if trimmer is not required.

Note: Non-hermetically sealed (VC)TCXO products are not subjected to the washing cycles as the solvent degrade the trimmer capacitor. If cleaning is mandatory please choose hermetically sealed packages or no-trimmer option.



General Specifications: (at +25°C and specified input voltage)

Frequency Range 1.6 MHz, ~ 1.56 MHz
Output Wave Form Square Wave. Wave Form Code is "T".
Initial Calibration Tolerance Models with mechanical trimmer: < ±1 ppm. +25° ± 2°C.
Models without mechanical trimmer: ±2 ppm at +25° ±2°C.
Standard Frequencies (partial list) 10.0 MHz, 12.8 MHz, 13.0 MHz, 14.4 MHz, 15.36 MHz, 16.384 MHz, 19.2 MHz, 19.440 MHz, 19.68 MHz, 25.0 MHz, 38.880 MHz, 40.0 MHz, 77.760 MHz, 125.0 MHz; 155.520 MHz
Frequency Stability
• vs Temperature
• vs Aging
• vs Voltage Change
• vs Load Change
• vs reflow (SMD models only)
• ±1 ppm , ±1.5 ppm, ±2.0 ppm, ±2.5 ppm, ±3 ppm, or ±5 ppm, over operating temperature range. Referenced to frequency reading at +25°C.
• ±1.0 ppm max. first year at +25°C
• ±0.3 ppm max. for a ±5% input voltage change
• ±0.3 ppm max. for a ±10% loading condition change
• ±1 ppm max. 1 reflow and measured 24 hours afterwards
Typical Operating Temperature Range (examples) 0°C to +60°C 0°C to +70°C -10°C to +60°C -20 °C to +70°C -30°C to +60°C -30°C to +75°C -30°C to +85°C -40°C to +85°C. or custom.
Hi Rel: -55°C to +85°C or -55°C to +125°C. Selected models only. Customer package and /or pin configurations are welcome.
Output Voltage Level (peak to peak) CMOS
Mechanical Frequency Tuning Standard ±3 ppm min. tuning Note: VM57 and VM53 have no mechanical trimmer built-in.
Option No mechanical trimmer built-in (for aqueous washing cycles). Part number: Please add ??after the regular model prefix. For example: M381T3.
Input Voltage Range Option +15.0V, +12.0V, +10.0V, +9.0; +3.0 V D.C.
Standard + 2.75 V D.C. min.; +5.0 V D.C. max.
+3.3 V (voltage code is ?3?+5.0 V (voltage code is ??
Output Voltage Level Logic High "1" 2.4 V typ.;2.2 V min. 4.2 V typ.;3.9 V min.
Logic Low "0" 0.3 V typ.; 0.4 V max. 0.3 V typ.; 0.4 V max.
Duty Cycle 45% ~ 55%
Rise Time ( 0.1VDD →0.9 VDD) 4.0 n sec. typ; 8.0 n sec max. 3.0 n sec. typ; 5.0 n sec max.
Fall Time ( 0.9VDD →0.1 VDD) 2.0 n sec. typ; 8.0 n sec max. 2.0 n sec. typ; 5.0 n sec max.
Current Consumption.
(Over operating temperature range.)
15 mA max. for 20 MHz at +3.3V
30 mA max for 125 MHz at +3.3V
13 mA max. for 13 MHz at +5V
27 mA max for 100 MHz at +5V
Pin 1 Options VCTCXO Only Control Voltage +2.5 V ±2.0V +1.5 V ±1.0V for VM57T5
Frequency Deviation Range Standard ±10 ppm min. for +1.5V±1.0V
Option Narrow: ±1 ppm max. or custom
Wide: ±35 min. or custom
Slope Polarity Standard Positive slope. Positive voltage for positive frequency shift.
Option Negative slope. Selected packages only.
Linearity 10 % max.
Analog Sensor Output. TCXOs only. Linear analog voltage-temperature output on pin 1. Part number: Please add ??br> after the regular model prefix. For example: M472T3.
Digital Sensor Output. TCXOs only. Digital voltage-temperature output on pin 1. Part number: Please add ??after the
regular model prefix. For example: M473T3
Tri-State.TCXOs only High; H?/td> >0.7*VDD or open: Square output; Internal pull-up; <0.7*VDD: Output high impedance Part number: Please add ??after the regular model prefix. For example: M394T3.
Low; L?/td>
Start-Up Time. 2 m. sec. Typical, 3 m. sec. max. (reach 90% amplitude and at+25°C±2°C)
Output Load 15 pF
Output Format AC block, DC coupled
Storage Temperature -40°C to +85°C or -55°C to +125°C (package dependent)

Note 1: Some specifications are package dependent. Please refer to the spec. sheet of individual packages once a package is selected..
Note 2: TCXO products ordered without mechanical and electrical frequency tuning should have a frequency tolerance of ±2 ppm (at +25C) and the frequency stability over temperature will be from that measured value.
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