參數(shù)資料
型號(hào)： EM38T5-12.80-2.0/-30+75
廠(chǎng)商： EUROQUARTZ LTD
元件分類(lèi)： XO, clock
英文描述： TCXO, CLOCK, 12.8 MHz, HCMOS OUTPUT
封裝： DIP-14/4
文件頁(yè)數(shù)： 1/1頁(yè)
文件大小： 134K
代理商： EM38T5-12.80-2.0/-30+75
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
SPECIFICATION
Product Series Code:
EM38T
Frequency Range:
1.2MHz to 156.0MHz
Output Waveform:
Square wave (HCMOS)
Standard Frequencies:
9.6, 10.0, 12.80, 13.0, 14.40,
15.36, 16.384, 19.200,
19.44 and 19.68MHz.
(Partial list)
Operating Temperature Range:
See table
Frequency Stability:
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)
Supply Voltage:
+3.0 VDC (Code ‘3’)
+5.0 VDC (Code ‘5’)
Output Voltage Levels
Logic ‘1’ HIGH:
90% Vdd min.
Logic ‘0’ LOW:
10% Vdd max.
Rise & Fall Times:
10ns max. (10%~90% Vdd)
Duty Cycle (Symmetry):
50%±10% (at 50%Vdd)
Start-up Time:
10ms max.
Current Consumption:
3.0 Volt supply:
25mA max. (Freq. dependent)
5.0 Volt supply:
30mA max. (Freq. dependent)
Output Load:
15pF
SSB Phase Noise:
See table
Output Format:
AC block, DC coupled
Storage Temperature:
-50° to +100°C
EM38T - 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
EM38T - TEST CIRCUIT
SSB Phase Noise
at 25°C
Offset
(Hz)
10
100
1k
10k
100k
EM38T
100MHz
(dBc/Hz)
-72
-110
-125
-132
-125
EM38T - PART NUMBERING PROCEDURE
Example:
EM38T3-19.44-2.5/-30+75
Series Description
Supply Voltage
3 = 3.0 VDC
5 = 5.0 VDC
Frequency
Stability over OTR (ppm)
Operating Temperature Range (OTR) (°C)
= standard specification
PHASE NOISE (Example: EM38T at 10.0MHz)
14 pin DIL compatible package
Wide frequency range: 1.2MHz to 156MHz
Supply voltage 3.0 or 5.0 Volts
Customized specifications available
HCMOS 14 pin DIL compatible
EM38T Series
EM38T series TCXOs are provided in an industry-standard 14 pin
Dual-in-Line compatible package. With HCMOS 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.
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