Datasheet > VEM44T28-16.384-2.0/-40+85

VEM44T28-16.384-2.0/-40+85

更新时间： 2024-11-01 05:20:07

品牌	Logo	应用领域
EUROQUARTZ		/
页数	文件大小	规格书
1页	176K
描述
HCMOS Output Clock Oscillator, 16.384MHz Nom, SMD, 4 PIN

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VEM44T28-16.384-2.0/-40+85 数据手册

QUARTZ

EURO

VEM44T Series TCXO

Voltage-Controlled HCMOS 11.4 x 9.6 x 4.7mm SMD

SMD package 11.4 x 9.6 x 4.7mm

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

VEM44T - OUTLINES AND DIMENSIONS

Supply voltage 2.8 Volts to 5.0 Volts

DESCRIPTION

VEM44T series VCTCXOs are packaged in the industry-standard 11.4

x 9.6 x 4.7mm 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:

VEM44T

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)

Operating Temperature Range:

Frequency Stability

vs. Ageing:

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’)

vs. Voltage Change:

vs. Load Change:

vs. Reflow:

Supply Voltage:

+3.0 VDC (Code ‘3’)

+3.3 VDC (Code ‘33’)

+5.0 VDC (Code ‘5’)

VEM44T - TEST CIRCUIT

Output Voltage Levels

Logic ‘1’ HIGH:

80% Vdd min.

Logic ‘0’ LOW:

10% Vdd max.

Rise & Fall Times:

Duty Cycle (Symmetry):

Start-up Time:

10ns max. (20%~80%)

50%±10% (at 50%Vdd)

10ms max.

Current Consumption:

E.F.C. Tuning:

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.

Slope Polarity:

Linearity:

Output Load:

15pF

PHASE NOISE

SSB Phase Noise:

Output Format:

Storage Temperature:

See table

AC block, DC coupled

-50° to +100°C

Offset

(Hz)

100

10k

100k

-125

SSB Phase Noise

at 25°C

VEM44T

100MHz

(dBc/Hz)

-72

-110

-125

-132

FREQUENCY STABILITY OVER TEMPERATURE

Frequency Stability (ppm)

0 ~ +50

±0.5

±1.0

±1.5

±2.0

±2.5

VEM44T - PART NUMBERING PROCEDURE

-10 ~ +60

ASK

Example:

VEM44T3-19.44-2.5/-30+75

Temperature

-20 ~ +70

Range (°C)

-30 ~ +75

-40 ~ +85

Series Description

Supply Voltage

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

= standard specification

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

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与VEM44T28-16.384-2.0/-40+85相关器件

型号	品牌	获取价格	描述	数据表
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
VEM44T28-19.200-2.0/-20+70	EUROQUARTZ	获取价格	HCMOS Output Clock Oscillator, 19.2MHz Nom, SMD, 4 PIN
VEM44T28-19.200-2.0/-40+85	EUROQUARTZ	获取价格	HCMOS Output Clock Oscillator, 19.2MHz Nom, SMD, 4 PIN
VEM44T28-19.200-2.5/-20+70	EUROQUARTZ	获取价格	HCMOS Output Clock Oscillator, 19.2MHz Nom, SMD, 4 PIN

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