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參數資料
| 型號： | VEM14S5-19.680-1.5/-20+70 |
| 廠商： | EUROQUARTZ LTD |
| 元件分類： | XO, clock |
| 英文描述： | TCVCXO, CLIPPED SINE OUTPUT, 19.68 MHz |
| 封裝： | ROHS COMPLIANT, DIP-14/4 |
| 文件頁數： | 1/1頁 |
| 文件大小： | 174K |
| 代理商： | VEM14S5-19.680-1.5/-20+70 |
EURO QUARTZ
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
TCXO
DESCRIPTION
VEM14S - OUTLINES AND DIMENSIONS
Frequency Stability (ppm)
±1.0
±1.5
±2.0
±2.5
Operating
Temperature
Range (°C)
0 ~ +50
-10 ~ +60
-20 ~ +70
-30 ~ +75
FREQUENCY STABILITY
VEM14S - TEST CIRCUIT
SSB Phase Noise
at 25°C
Offset
(Hz)
10
100
1k
10k
100k
VEM14S
10MHz
(dBc/Hz)
-72
-110
-125
-132
-125
= standard specification
PHASE NOISE (Example: VEM14S at 10.0MHz)
14 pin DIL package
Frequency range: 9.6MHz to 26.0MHz
Supply voltage 3.0 or 5.0 Volts
EFC tuning ±5ppm to ±12ppm
Customized specifications available
Voltage-controlled Clipped Sinewave 14 pin DIL
VEM14S Series
VEM14S series TCXOs are packaged in the industry-standard 14 pin
Dual-in-Line package. With Clipped Sinewave output, tolerances are
available from ±1.0ppm over 0° to 50°C to ±1ppm over -30° to
+70°C. Supply voltage 3.0 or 5.0 Volts. The output is controllable by
EFC enabling output variation of ±5ppm to ±12ppm.
VEM14S - PART NUMBERING PROCEDURE
Example:
VEM14S3-19.44-2.5/-30+75
Series Description
Supply Voltage
3 = 3.0 VDC
5 = 5.0 VDC
Frequency
Stability over OTR (ppm)
Operating Temperature Range (OTR) (°C)
SPECIFICATION
Product Series Code:
VEM14S
Frequency Range:
9.6MHz to 26.0MHz
Output Waveform:
Clipped sine wave
Initial Calibration Tolerance*:
±3ppm at 25°C
Standard Frequencies:
9.6, 10.0, 12.80, 13.0, 14.40,
15.36, 16.384, 19.2, 19.440,
and 19.680MHz.
Operating Temperature Range:
See table
Frequency Stability
Over Operating Temperature range:
See table
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)
Input Voltage Range:
+2.6 VDC to +6.0 VDC
3.0V and 5.0V are standard
Output Voltage Level
+3.0V supply:
0.8V p-p minimum
+5.0V supply:
1.0V p-p minimum
Current Consumption:
See table
Output Load:
10k Ohms//15pF
Harmonic Distortion:
-10dB typical, -7dB maximum
Output Format:
DC block, AC coupled
Storage Temperature:
-40°C to +85°C
Electrical Frequency Tuning
±5ppm to ±12ppm for .5Vdd
(<±100ppm is available)
Slope Polarity:
Positive (Increasing control V.
increases output frequency)
Linearity:
10% maximum
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