Datasheet > VEM42T28-FREQ-2.5/-30+75

VEM42T28-FREQ-2.5/-30+75

更新时间： 2024-11-06 19:25:19

品牌	Logo	应用领域
EUROQUARTZ		机械振荡器
页数	文件大小	规格书
1页	159K
描述
HCMOS Output Clock Oscillator, 1.6MHz Min, 156MHz Max, SMD, 4 PIN

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VEM42T28-FREQ-2.5/-30+75 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Contact Manufacturer	Reach Compliance Code：	compliant
风险等级：	5.48	Is Samacsys：	N
老化：	1 PPM/FIRST YEAR	最大控制电压：	2.5 V
最小控制电压：	0.5 V	最长下降时间：	10 ns
频率调整-机械：	YES	频率偏移/牵引率：	12 ppm
频率稳定性：	2.5%	安装特点：	SURFACE MOUNT
最大工作频率：	156 MHz	最小工作频率：	1.6 MHz
最高工作温度：	75 °C	最低工作温度：	-30 °C
振荡器类型：	HCMOS	输出负载：	15 pF
物理尺寸：	11.4mm x 9.6mm x 2.5mm	最长上升时间：	10 ns
标称供电电压：	2.8 V	表面贴装：	YES
最大对称度：	60/40 %	Base Number Matches：	1

VEM42T28-FREQ-2.5/-30+75 数据手册

QUARTZ

EURO

TCXO

VEM42T Series

Voltage-Controlled HCMOS 11.4 x 9.6 x 2.5mm SMD

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

VEM42T - OUTLINES AND DIMENSIONS

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)

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’)

Output Voltage Levels

Logic ‘1’ HIGH:

80% Vdd min.

Logic ‘0’ LOW:

10% Vdd max.

VEM42T - TEST CIRCUIT

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

SSB Phase Noise:

Output Format:

Storage Temperature:

See table

AC block, DC coupled

-50° to +100°C

FREQUENCY STABILITY OVER TEMPERATURE

Frequency Stability (ppm)

0 ~ +50

±0.5

±1.0

±1.5

±2.0

±2.5

VEM42T - PART NUMBERING PROCEDURE

ASK

-10 ~ +60

Example:

VEM42T3-19.44-2.5/-30+75

Temperature

-20 ~ +70

Range (°C)

-30 ~ +75

-40 ~ +85

Series Description

Supply Voltage

28 = 2.8 VDC

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

3 = 3.0 VDC

33 = 3.3 VDC

5 = 5.0 VDC

= standard specification

PHASE NOISE

Frequency

Stability over OTR (ppm)

Offset

(Hz)

100

10k

100k

SSB Phase Noise

at 25°C

Operating Temperature Range (OTR) (°C)

VEM42T

100MHz

(dBc/Hz)

-72

-110

-125

-132

-125

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VEM42T28-FREQ-2.5/-30+75相关器件

型号	品牌	获取价格	描述	数据表
VEM42T28-FREQ-2.5/-40+85	EUROQUARTZ	获取价格	HCMOS Output Clock Oscillator, 1.6MHz Min, 156MHz Max, SMD, 4 PIN
VEM42T3-1.6-0.5/0+50	EUROQUARTZ	获取价格	HCMOS Output Clock Oscillator, 1.6MHz Nom, ROHS COMPLIANT, SMD, 4 PIN
VEM42T3-1.600-1.0/0+50	EUROQUARTZ	获取价格	Oscillator,
VEM42T3-1.600-1.0/-40+85	EUROQUARTZ	获取价格	Oscillator,
VEM42T3-1.600-1.5/-30+75	EUROQUARTZ	获取价格	Oscillator,
VEM42T3-1.600-1.5/-40+85	EUROQUARTZ	获取价格	Oscillator,
VEM42T3-1.600-2.0/0+50	EUROQUARTZ	获取价格	Oscillator,
VEM42T3-1.600-2.0/-10+60	EUROQUARTZ	获取价格	Oscillator,
VEM42T3-1.600-2.5/-30+75	EUROQUARTZ	获取价格	Oscillator,
VEM42T3-1.6-1.5/0+50	EUROQUARTZ	获取价格	HCMOS Output Clock Oscillator, 1.6MHz Nom, ROHS COMPLIANT, SMD, 4 PIN

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