Datasheet > VEM57T3-77.76-2.5/-10+60

VEM57T3-77.76-2.5/-10+60

更新时间： 2023-05-15 00:00:00

品牌	Logo	应用领域
EUROQUARTZ		/
页数	文件大小	规格书
1页	178K
描述
HCMOS Output Clock Oscillator, 77.76MHz Nom, ROHS COMPLIANT, MINIATURE, SMD, 4 PIN

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VEM57T3-77.76-2.5/-10+60 数据手册

QUARTZ

EURO

VEM57T Series TCXO

Voltage Controlled HCMOS 7 x 5 x 2.5mm SMD

Miniature SMD package 7 x 5mm

Wide frequency range: 2.5MHz to 170MHz

Close tolerance stabilities from ±0.5ppm over 0° to +50°C

±1ppm over -40 to +85°C available

EFC tuning ±5ppm to ±12ppm

Supply voltage 2.8 Volts to 5.0 Volts

VEM57T - OUTLINES AND DIMENSIONS

DESCRIPTION

VEM57T series VCTCXOs are packaged in the industry-standard

7x5mm 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:

Initial Calibration Tolerance:

Standard Frequencies:

VEM57T

2.5MHz to 170.0MHz

Square wave HCMOS

±3ppm at 25°C

10.0, 12.80, 13.0, 14.40,

16.0, 16.3840, 19.200,

19.440, 19.680, 20.0, 38.880,

77.760 and 155.52MHz

(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:

VEM57T - TEST CIRCUIT

+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.

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

EM57T

100MHz

(dBc/Hz)

-72

-110

-125

-132

FREQUENCY STABILITY OVER TEMPERATURE

VEM57T - PART NUMBERING PROCEDURE

Frequency Stability (ppm)

0 ~ +50

±0.5

±1.0

±1.5

±2.0

±2.5

Example:

VEM57T3-19.44-2.5/-30+75

ASK

-10 ~ +60

Temperature

-20 ~ +70

Range (°C)

Series Description

Supply Voltage

-30 ~ +75

-40 ~ +85

28 = 2.8 VDC

3 = 3.0 VDC

33 = 3.3 VDC

5 = 5.0 VDC

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

= standard specification

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VEM57T3-77.76-2.5/-10+60相关器件

型号	品牌	描述	获取价格	数据表
VEM57T3-77.76-2.5/-30+75	EUROQUARTZ	HCMOS Output Clock Oscillator, 77.76MHz Nom, ROHS COMPLIANT, MINIATURE, SMD, 4 PIN	获取价格
VEM57T3-77.76-2.5/-40+85	EUROQUARTZ	HCMOS Output Clock Oscillator, 77.76MHz Nom, ROHS COMPLIANT, MINIATURE, SMD, 4 PIN	获取价格
VEM57T3-77.76-2/0+50	EUROQUARTZ	HCMOS Output Clock Oscillator, 77.76MHz Nom, ROHS COMPLIANT, MINIATURE, SMD, 4 PIN	获取价格
VEM57T3-FREQ-0.5/-10+60	EUROQUARTZ	HCMOS Output Clock Oscillator, 2.5MHz Min, 170MHz Max, ROHS COMPLIANT, MINIATURE, SMD, 4 P	获取价格
VEM57T3-FREQ-1.0/0+50	EUROQUARTZ	HCMOS Output Clock Oscillator, 1.25MHz Min, 156MHz Max, ROHS COMPLIANT, MINIATURE, CERAMIC	获取价格
VEM57T3-FREQ-1.0/-10+60	EUROQUARTZ	HCMOS Output Clock Oscillator, 1.25MHz Min, 156MHz Max, ROHS COMPLIANT, MINIATURE, CERAMIC	获取价格

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