Datasheet > VEMW44T33-204.8-3.0/0+50

VEMW44T33-204.8-3.0/0+50

更新时间： 2024-11-09 15:56:51

品牌	Logo	应用领域
EUROQUARTZ		机械振荡器
页数	文件大小	规格书
1页	139K
描述
HCMOS Output Clock Oscillator, 204.8MHz Nom, MINIATURE, SMD, 4 PIN

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VEMW44T33-204.8-3.0/0+50 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	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：	1.2 ns	频率调整-机械：	YES
频率偏移/牵引率：	6 ppm	频率稳定性：	3%
安装特点：	SURFACE MOUNT	标称工作频率：	204.8 MHz
最高工作温度：	50 °C	最低工作温度：
振荡器类型：	HCMOS	输出负载：	15 pF
物理尺寸：	11.4mm x 9.6mm x 4.7mm	最长上升时间：	1.2 ns
标称供电电压：	3.3 V	表面贴装：	YES
最大对称度：	55/45 %	Base Number Matches：	1

VEMW44T33-204.8-3.0/0+50 数据手册

QUARTZ

EURO

TCXO

EMW44T Series

HCMOS 4 pad SMD, 'W' Group

Miniature 11.4 x 9.6 x 4.7mm SMD package

Frequency range: 200.01MHz to 800.0MHz

Supply voltage 3.3 Volts

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

EMW44T - OUTLINES AND DIMENSIONS

DESCRIPTION

EMW44T series TCXOs are packaged in a 4 pad SMD package with

trimmer. 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:

EMW44T

VCTCXO:

VEMW44T

Frequency Range:

Output Waveform:

Initial Calibration Tolerance:

Standard Frequencies:

200.01MHz to 800.0MHz

Squarewave, HCMOS

<±2.0ppm at +25°±2°C

200.0, 204.8, 311.04, 400.0,

409.6 and 622.08MHz

(Partial list)

Mechanical Frequency Tuning:

Operating Temperature Range:

Frequency Stability

±3ppm minimum

(see table)

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):

Supply Voltage:

Output Logic Levels:

Logic High: 90% Vdd min.

Logic Low: 10% Vdd max.

65mA max. (Freq. dependant)

1.2ns typical

Current Consumption:

Rise and Fall Times:

Duty Cycle:

VEMW44T VOLTAGE CONTROL SPECIFICATION

Control Voltage:

Standard = +1.5±1.0Volts for all input

voltages. (Contact technical sales if

+2.5±2.0 Volts is required.)

50%±5%

Start-up Time:

Current Consumption:

Output Load:

5ms typical, 10ms max.

See table below

15pF

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

Slope Polarity:

Positive (increase of control voltage increases

output frequency.)

Storage Temperature:

-55~+125°C

Input Impedance:

2M minimum

Modulation Bandwidth: 25kHz minimum

Linearity: ±10% maximum

SSB PHASE NOISE at 25°C

Offset

10Hz

100Hz

1kHz

10kHz

100kHz

FREQUENCY STABILITY

Part =

EMW44T33

at 622.080MHz

(dBc/Hz)

-50

-77

-102

-115

-108

Stability (ppm)

±0.5

±1.0

±1.5

±2.0

±2.5

±3.0

0 ~ +50

ASK

-10 ~ +60

-20 ~ +70

-30 ~ +75

-40 ~ +85

Temp.

Range (°C)

PART NUMBERING SCHEDULE

ASK

Example:

EMW44T33-409.60-2.5/-30+75

Series Description

TCXO = EMW44T

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

VCTCXO = VEMW44T

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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与VEMW44T33-204.8-3.0/0+50相关器件

型号	品牌	获取价格	描述	数据表
VEMW44T33-204.8-3.0/-20+70	EUROQUARTZ	获取价格	HCMOS Output Clock Oscillator, 204.8MHz Nom, MINIATURE, SMD, 4 PIN
VEMW44T33-204.8-3.0/-30+75	EUROQUARTZ	获取价格	HCMOS Output Clock Oscillator, 204.8MHz Nom, MINIATURE, SMD, 4 PIN
VEMW44T33-204.8-3.0/-40+85	EUROQUARTZ	获取价格	HCMOS Output Clock Oscillator, 204.8MHz Nom, MINIATURE, SMD, 4 PIN
VEMW44T33-311.04-0.5/0+50	EUROQUARTZ	获取价格	HCMOS Output Clock Oscillator, 311.04MHz Nom, MINIATURE, SMD, 4 PIN
VEMW44T33-311.04-0.5/-10+60	EUROQUARTZ	获取价格	HCMOS Output Clock Oscillator, 311.04MHz Nom, MINIATURE, SMD, 4 PIN
VEMW44T33-311.04-1.0/-20+70	EUROQUARTZ	获取价格	HCMOS Output Clock Oscillator, 311.04MHz Nom, MINIATURE, SMD, 4 PIN
VEMW44T33-311.04-1.5/-10+60	EUROQUARTZ	获取价格	HCMOS Output Clock Oscillator, 311.04MHz Nom, MINIATURE, SMD, 4 PIN
VEMW44T33-311.04-1.5/-20+70	EUROQUARTZ	获取价格	HCMOS Output Clock Oscillator, 311.04MHz Nom, MINIATURE, SMD, 4 PIN
VEMW44T33-311.04-1.5/-30+75	EUROQUARTZ	获取价格	HCMOS Output Clock Oscillator, 311.04MHz Nom, MINIATURE, SMD, 4 PIN
VEMW44T33-311.04-2.0/-20+70	EUROQUARTZ	获取价格	HCMOS Output Clock Oscillator, 311.04MHz Nom, MINIATURE, SMD, 4 PIN

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