Datasheet > VEMV44T33-FREQ-2.5/-20+70

VEMV44T33-FREQ-2.5/-20+70

更新时间： 2024-11-07 05:33:03

品牌	Logo	应用领域
EUROQUARTZ		/
页数	文件大小	规格书
1页	139K
描述
HCMOS Output Clock Oscillator, 27MHz Min, 200MHz Max, MINIATURE, CERAMIC, SMD, 4 PIN

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VEMV44T33-FREQ-2.5/-20+70 数据手册

QUARTZ

EURO

TCXO

EMV44T Series

HCMOS 4 pad SMD, 'V' Group

Miniature 11.4 x 9.6 x 4.7mm SMD package

Wide frequency range: 27.0MHz to 200.0MHz

Supply voltage 3.3 Volts

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

EMV44T - OUTLINES AND DIMENSIONS

DESCRIPTION

EMV44T 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:

EMV44T

VCTCXO:

VEMV44T

Frequency Range:

Output Waveform:

27.0MHz to 200.0MHz

Squarewave, HCMOS

Initial Calibration Tolerance

Models without trimmer:

Models with trimmer:

Standard Frequencies:

<±2.0ppm

<±1.0ppm

30.0, 32.768, 38.880, 40.0,

50.0, 54.0, 64.0, 65.536,

77.76, 80.0, 128.0, 160.0

and 200.0MHz

(Partial list)

Operating Temperature Range:

Mechanical Frequency Tuning:

Frequency Stability

See table

±3.0ppm minimum

vs. Ageing:

vs. Voltage Change:

vs. Load Change:

±1.0 ppm max. first year

±0.3 ppm max. ±5% change

±0.3 ppm max. ±10% change

±1.0ppm max. for one reflow

(Measured after 24 hours)

+3.3 Volts

vs. Reflow (SMD type):

VEMV44T VOLTAGE CONTROL SPECIFICATION

Supply Voltage:

Control Voltage:

Standard = +1.5±1.0Volts for all input

voltages. (Contact technical sales if

+2.5±2.0 Volts is required.)

Output Logic Levels:

Logic High: 90% Vdd min.

Logic Low: 10% Vdd max.

40mA maximum

Current Consumption:

Rise and Fall Times:

Duty Cycle:

Start-up Time:

Current Consumption:

Output Load:

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

Slope Polarity:

10ns typical

Positive (increase of control voltage increases

output frequency.)

2M minimum

50%±10% standard,

5ms typical, 10ms max.

See table below

15pF

-55~+125°C

Input Impedance:

Modulation Bandwidth: 25kHz minimum

Linearity: ±10% maximum

Storage Temperature:

SSB PHASE NOISE at 25°C

Offset

10Hz

100Hz

1kHz

10kHz

100kHz

FREQUENCY STABILITY

at 77.760Mhz

(dBc/Hz)

-80

-110

-135

-130

-132

Stability (ppm)

±0.5

±1.0

±1.5

±2.0

±2.5

±3.0

Part =

EMV44T33

at 155.520Mhz

(dBc/Hz)

-80

-110

-125

-120

-125

0 ~ +50

ASK

-10 ~ +60

-20 ~ +70

-30 ~ +75

-40 ~ +85

Temp.

Range (°C)

PART NUMBERING SCHEDULE

Example:

EMV44T33-200.00-2.5/-30+75

ASK

Series Description

TCXO = EMV44T

VCTCXO = VEMV44T

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

Supply Voltage

33 = 3.3 VDC

Frequency (MHz)

Stability over OTR (±ppm)

Operating Temperature Range (OTR) (°C)

Lower and upper limits

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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VEMV44T33-FREQ-3.0/-30+75	EUROQUARTZ	获取价格	HCMOS Output Clock Oscillator, 27MHz Min, 200MHz Max, MINIATURE, CERAMIC, SMD, 4 PIN
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VEMV572T33-128.000-2.0/-30+75	EUROQUARTZ	获取价格	Oscillator, 27MHz Min, 200MHz Max, 128MHz Nom,
VEMV572T33-128.000-2.5/0+50	EUROQUARTZ	获取价格	Oscillator, 27MHz Min, 200MHz Max, 128MHz Nom,
VEMV572T33-128.000-3.0/0+50	EUROQUARTZ	获取价格	Oscillator, 27MHz Min, 200MHz Max, 128MHz Nom,
VEMV572T33-128.000-3.0/-30+75	EUROQUARTZ	获取价格	Oscillator, 27MHz Min, 200MHz Max, 128MHz Nom,
VEMV572T33-160.000-1.5/0+50	EUROQUARTZ	获取价格	Oscillator, 27MHz Min, 200MHz Max, 160MHz Nom,
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