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32.7680LSMB050UCT

更新时间：2024-09-18 07:57:47

品牌：EUROQUARTZ

描述：Low Power - Low Frequency SMD Oscillator

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32.7680LSMB050UCT 概述

Low Power - Low Frequency SMD Oscillator 低功耗 - 低频贴片振荡器

32.7680LSMB050UCT 数据手册

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LSM Series Oscillators

QUARTZ

EURO

Low Power - Low Frequency SMD Oscillator

Low current consumption, low frequency from 30kHz

Low profile, miniature SMD package

Full military testing available

Testing to MIL-PRF-55310 available

DESCRIPTION

LSM series oscillators are precision surface mount oscillators with a

frequency range from 30kHz to 200kHz. The part comprises of a

hermetically sealed crystal with a hybrid circuit sealed in a ceramic

package with a Kovar lid. Full MIL testing is available.

OUTLINE & DIMENSIONS

SPECIFICATION

Frequency Range****:

Supply Voltage*:

Calibration Tolerance**

Code A:

30kHz to 200kHz (32.768kHz)

3.3 or 5.0 Volts ±10%

±0.001% (±10ppm)

±0.0025%

Code B:

Code C:

±0.01%

Frequency Stability***

0° to +50°C:

-20° to +40°C:

Voltage Coefficient

±0.0025% typical (±25ppm)

±0.004% maximum (±40ppm)

±0.007% typical (±70ppm)

±0.01% maximum (±100ppm

±1ppm/V typical

±3ppm/V maximum

Ageing:

±1ppm/year typical

±3ppm/year maximum

1000g, 1ms, ½ sine, ±3ppm max.

10g rms, 10-2000Hz, ±3ppm max.

Shock:

Vibration:

Frequency Change

vs. Output Load Change:

Operating Temperature:

±1ppm maximum

Notes:

-10° to +70°C Commercial

-40° to +85°C Industrial

-55° to +125°C Military

***

Contact factory for lower supply voltages

Tighter tolerances avialable

Does not include calibration tolerance. Positive variations

are small compared to negative variations.

Contact factory for frequencies other than 32.7680kHz

Output Voltage (5.0V supply)

HIGH:

4.8V minimum, 4.95V typical

0.2V maximum, 0.05V typical

12ns typical

LOW:

****

Rise/Fall Times:

Symmetry:

40/60% maximum, 45/55% typical

Supply Current

5.0V supply: 15 mA max., 8.3 mA typical

3.3V supply: 10 mA max., 5.5 mA typical

Tray pack (standard)

PART NUMBERING

Packaging:

Example: 32.7680kHz LSMA050UMTA

16mm tape, 17.8cm or 33cm reels

Frequency

Series Designation LSM

Calibration Tolerance (see table above)

Stability*

ENABLE/DISABLE, POWER DOWN, NOT CONNECTED

Pad 3

Specifying

Code

Pad 1*

Option

100 = ±100ppm

50 = ±50ppm

25 = ±25ppm

Power Down

LOW

HIGH

LOW

HIGH

High Z

Frequency output

High Z

Frequency output

Output Universal (CMOS)

Operating Temp. Range

C = Commercial

I = Industrial

Enable/Disable

Not Connected

Blank

M = Military

Pad 1 Function

* Normally HIGH (internal pull-up resistor)

T = Enable/Disable

Blank = not connected

Supply Voltage**

Blank = 5.0 Volts

A = 3.3 Volts

ENABLE/DISABLE vs. POWER DOWN

P - Power Down: When Pad 1 is LOW the oscillator stops running

T - Enable/Disable: When Pad 1 is LOW the internal oscillator

continues to run but the output (Pad 3) is in a

high impedance (Z) state.

For other stability requirements enter figure required.

** For other supply voltage enter required voltage.

Power Down:

Disabled current consumption low,

recovery delayed.

Enable/Disable:

Disabled current consumption lower than normal,

Recovery immediate.

EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE

Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 Email: info@euroquartz.co.uk www.euroquartz.co.uk

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