EM44GS5-32.768K-2.5-30中文资料

EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE

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DESCRIPTION

EM44S series TCXOs are packaged in the industry-standard 11.4 x 9.6 x 4.7mm SMD package. With clipped sinewave output, close tolerances are available from ±0.5ppm over 0° to 50°C or ±1ppm over -40° to +85°C. The part has low power consumption. Industry-standard SMD package 11.4 x 9.6 x 4.7mm

Close tolerance stabilities from ±0.5ppm over 0° to +50°C ±1ppm over -40 to +85°C Low power consumption

RoHS compliant

EM44GS - OUTLINES AND DIMENSIONS

FREQUENCY STABILITY CURRENT CONSUMPTION

Clipped Sinewave, 4 Pad FR4 substrate SMD

SPECIFICATION

Product Series Code TCXO: EM44GS VCTCXO: VEM44GS

Frequency Range: 10.0MHz to 27.0MHz Output Waveform: Clipped Sinewave Initial Calibration Tolerance**: <±1ppm at 25°C

Standard Frequencies: 10.0, 12.80, 13.0, 14.40, 15.36, 16.384, 19.2, 19.440, and 19.68MHz (Partial list)Operating Temperature Range:See table

Frequency Stability vs. Ageing: ±1.0 ppm max. first year vs. Voltage Change: ±0.3 ppm max. ±5% change vs. Load Change: ±0.3 ppm max. ±10% change vs. Reflow: ±1ppm max. for one reflow (Measured after 24 hours)Supply Voltage: +2.8, +3.0 or +5.0Volts (Specify when ordering)Output Voltage Level: 0.8V p-p minimum Start-up Time: 2ms typical, 5ms max.Current Consumption:See table below

Output Load: 10kOhm//10pF ±10%Harmonic Distortion: -10dB typical, -7dB max.SSB Phase Noise:

See table

Output Format: DC block, AC coupled Storage Temperature: -50° to +100°C

PART NUMBERING PROCEDURE Example:

EM44GS3-19.44-2.5/-30+75

Supply Voltage 28 = 2.8 VDC 3 = 3.0 VDC 5 = 5.0 VDC Frequency (MHz)

Stability over OTR (±ppm)

Operating Temperature Range (OTR) (°C)Lower and upper limits.

Series Description TCXO = EM44GS VCTCXO = VEM44GS VEM44GS VOLTAGE CONTROL SPECIFICATION

PHASE NOISE

Control Voltage: Standard = +1.5±1.0Volts for all input voltages.(Contact technical sales if +2.5±2.0 Volts is required.)Frequency Deviation: ±6.0 ppm min.Slope Polarity: Positive (increase of control voltage increases output frequency.)Input Impedance: 1.0M min.

Modulation Bandwidth: 3.0kHz min. measured at -3dB Linearity: 10% max.

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

FREQUENCY STABILITY

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