Datasheet > VEM44T28-16.384-1.5/-20+70

VEM44T28-16.384-1.5/-20+70

更新时间： 2024-11-01 08:42:23

品牌	Logo	应用领域
EUROQUARTZ		/
页数	文件大小	规格书
1页	138K
描述
HCMOS Output Clock Oscillator, 16.384MHz Nom, SMD, 4 PIN

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VEM44T28-16.384-1.5/-20+70 数据手册

QUARTZ

EURO

EM44T TCXO

CMOS, 4 pad SMD, MHz Range

1.25MHz to 156.0MHz

Miniature 11.4 x 9.6 x 3.0mm SMD package

Wide frequency range: 1.25MHz to 156.0MHz

Supply voltage 2.8, 3.0, 3.3 or 5.0 Volts

Frequency stability from ±1ppm over -30 to +75°C

EM44T - OUTLINES AND DIMENSIONS

DESCRIPTION

EM44T series TCXOs are packaged in a miniature 4 pad ceramic SMD

package. With squarewave (CMOS) output, tolerances are available

from ±1.0ppm over -30° to +75°C. The part has a 0.01mF decoupling

capacitor built in.

SPECIFICATION

Product Series Code

TCXO:

EM44T

VCTCXO:

VEM44T

Frequency Range:

Output Waveform:

Initial Calibration Tolerance:

Standard Frequencies:

1.25MHz to 156.0MHz

Squarewave, HCMOS

<±1.0ppm at +25°±2°C

10.0, 12.8, 13.0, 14.4, 15.36,

16.384, 19.2, 19.440, 19.68,

25.0, 20.0, 27.0, 38.880,

40.0, 77.760, 125.0, 155.520

(

)

Operating Temperature Range:

Frequency Stability

vs. Ageing:

±1.0 ppm max. first year

vs. Voltage Change:

vs. Load Change:

vs. Reflow (SMD type):

±0.3 ppm max. ±5% change

±0.3 ppm max. ±10% change

±1.0ppm max. for one reflow

(

)

Mechanical Frequency Tuning:

Supply Voltage:

±3ppm minimum

+2.8, +3.0, +3.3 or +5.0V

(

Logic High: 90% Vdd min.

Logic Low: 10% Vdd max.

10ns max.

50%±10% standard,

50%±5% option

INPUT VOLTAGE & CURRENT CONSUMPTION

Input Voltage/

Frequency

+2.8V

+3.0

+3.3V

+5.0 V

Output Logic Levels:

Rise and Fall Times:

Duty Cycle:

8.192MHz

10.0MHz

2mA

3mA

2mA

4mA

5mA

7mA

77.760MHz

155.520MHz

14mA

26mA

17mA

35mA

32mA

50mA

Start-up Time:

Current Consumption:

Output Load:

5ms typical, 10ms max.

15pF

Storage Temperature:

-55~+125°C

SSB PHASE NOISE at 25°C

FREQUENCY STABILITY

Offset

10Hz

100Hz

1kHz

10kHz

100kHz

Frequency Stability (ppm)

0 ~ +50

±0.5

±1.0

±1.5

±2.0

±2.5

at 10.0Mhz

(dBc/Hz)

-115

-135

-148

-152

-155

ASK

Part =

M44T33

-10 ~ +60

at 155.250Mhz

(dBc/Hz)

-72

-110

-125

-132

-125

Temperature

-20 ~ +70

Range (°C)

-30 ~ +75

-40 ~ +85

PART NUMBERING PROCEDURE

P= available, x = not available, ASK = call Technical Sales

Example:

EM44T33-38.880-2.5/-30+75

Series Description

TCXO = EM44T

VEM44T VOLTAGE CONTROL SPECIFICATION

VCTCXO = VEM44T

Control Voltage:

Standard = +1.5±1.0Volts for all input

voltages.

Supply Voltage

28 = 2.8VDC

3 = 3.0VDC

Frequency Deviation: ±6.0 ppm min. (Vcon = +4.5V±1.0V)

33 = 3.3 VDC

Slope Polarity:

Positive

5 = 5.0 VDC

Frequency (MHz)

Stability over OTR (±ppm)

Input Impedance:

50k minimum

Operating Temperature Range (OTR) (°C)

Lower and upper limits.

Modulation Bandwidth: 20kHz minimum

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

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与VEM44T28-16.384-1.5/-20+70相关器件

型号	品牌	获取价格	描述	数据表
VEM44T28-16.384-2.0/0+50	EUROQUARTZ	获取价格	HCMOS Output Clock Oscillator, 16.384MHz Nom, SMD, 4 PIN
VEM44T28-16.384-2.0/-30+75	EUROQUARTZ	获取价格	HCMOS Output Clock Oscillator, 16.384MHz Nom, SMD, 4 PIN
VEM44T28-16.384-2.0/-40+85	EUROQUARTZ	获取价格	HCMOS Output Clock Oscillator, 16.384MHz Nom, SMD, 4 PIN
VEM44T28-16.384-2.5/-20+70	EUROQUARTZ	获取价格	HCMOS Output Clock Oscillator, 16.384MHz Nom, SMD, 4 PIN
VEM44T28-19.200-1.0/0+50	EUROQUARTZ	获取价格	HCMOS Output Clock Oscillator, 19.2MHz Nom, SMD, 4 PIN
VEM44T28-19.200-1.0/-30+75	EUROQUARTZ	获取价格	HCMOS Output Clock Oscillator, 19.2MHz Nom, SMD, 4 PIN
VEM44T28-19.200-1.5/0+50	EUROQUARTZ	获取价格	HCMOS Output Clock Oscillator, 19.2MHz Nom, SMD, 4 PIN
VEM44T28-19.200-1.5/-20+70	EUROQUARTZ	获取价格	HCMOS Output Clock Oscillator, 19.2MHz Nom, SMD, 4 PIN
VEM44T28-19.200-2.0/0+50	EUROQUARTZ	获取价格	HCMOS Output Clock Oscillator, 19.2MHz Nom, SMD, 4 PIN
VEM44T28-19.200-2.0/-10+60	EUROQUARTZ	获取价格	HCMOS Output Clock Oscillator, 19.2MHz Nom, SMD, 4 PIN

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