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PDF EM8K Data sheet ( Hoja de datos )
| Número de pieza | EM8K | |
| Descripción | ULTRA-LOW CURRENT | |
| Fabricantes | EUROQUARTZ limited | |
| Logotipo |  |
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EURO QUARTZ
EM8K ULTRA-LOW CURRENT TCXO
Highly stable CMOS TCXO with ultra-low supply current
Industry-standard package
Consumes less than 4mA at 20.0MHz with 3.3V supply
Low phase noise
RoHS compliant
DESCRIPTION
EM8K TCXOs and VCTCXOs are packaged in an 8 pin DIL package.
The part offers the stability of a TCXO and the design convenience of
HCMOS output with ultra-low current consumption.
8 pin Dual-in-Line TCXO
OUTLINES AND DIMENSIONS
SPECIFICATION
Product Code
TCXO:
VCTCXO:
Frequency Range:
Output Waveform:
Initial Calibration Tolerance:
Standard Frequencies:
Operating Temperature Range:
Frequency Stability
vs. Temperature
vs. Ageing:
vs. Voltage Change:
vs. Load Change:
vs. Reflow (SMD type):
Supply Voltage:
Current Consumption:
Output Logic Levels:
Rise and Fall Times:
Duty Cycle:
Start-up Time:
Output Load:
Fanout (drive capability):
RMS Period Jitter:
RoHS Status:
Packaging:
EM8K
VEM8K
12.8MHz to 26.0MHz
HCMOS
<±2.0ppm at +25°±2°C
12.8, 13.0, 14.4, 15.36, 16.0,
16.384, 16.8, 19.2, 19.44,
19.68, 20.0 and 26.0MHz
(Partial list.)
See table
See table
±1.0 ppm max. first year
±1.0 ppm max. ±10% change
±0.3 ppm max. ±10% change
±1.0ppm max. for one reflow
(Measured after 24 hours)
+2.8, 3.0 or 3.3 Volts
See table
See table
4ns typical with 15pF load
50%±5%
5ms typical, 10ms max.
15pF
12mA typical, 17mA max.
(at TTL level)
3ps max. (1 Sigma, 1000
samples; capacitive coupling
between Vdd and Ground).
RoHS compliant and pB free
16mm tape, 8mm pitch
1000 pieces per reel.
CURRENT CONSUMPTION
Frequency
+2.8V
Input Voltage
+3.0V
+3.3V
12.800MHz
13.000MHz
14.400MHz
16.384MHz
19.200MHz
19.440MHz
20.000MHz
26.000MHz
2.3mA typ.
2.5mA typ.
2.6mA typ.
2.8mA typ.
3.2mA typ.
3.2mA typ.
3.2mA typ.
3.6mA typ.
2.4mA typ.
2.6mA typ.
2.8mA typ.
3.0mA typ.
3.3mA typ.
3.4mA typ.
3.4mA typ.
3.8mA typ.
2.6mA typ.
2.8mA typ.
3.1mA typ.
3.2mA typ.
3.6mA typ.
3.7mA typ.
3.7mA typ.
4.1mA typ.
FREQUENCY STABILITY OVER TEMPERATURE
Stability (ppm)
±1.0 ±2.0 ±2.5 ±3.0 ±4.0
0 ~ +50
P
P
P
P
P
-10 ~ +60 ASK
P
P
P
P
Temp.
Range (°C) -20 ~ +70
X
P
P
P
P
-30 ~ +75
X
P
P
P
P
-40 ~ +85
X
X
X ASK ASK
P = available, x = not available, ASK = call Technical Sales
±5.0
P
P
P
P
P
VEM8K VOLTAGE CONTROL SPECIFICATION
Control Voltage:
Slope Polarity:
Linearity:
±5 to ±12ppm for +1.5 ±1.5 Volts
Positive (increase of control voltage increases
output frequency.)
6% typical, 10% maximum
SSB PHASE NOISE at 25°C
Offset
Part =
VEM8K30
at 13.000MHz
(dBc/Hz)
100Hz
-80
1kHz
-110
10kHz
-130
100kHz
-135
1MHz
-142
PART NUMBER FORMAT
Example:
EM8K33-20.000-2.5/-30+75
Series Description
TCXO = EM8K
VCTCXO = VEM8K
Supply Voltage
28=2.8V, 30=3.0V, 33=3.3VDC
Frequency (MHz)
Stability over OTR (±ppm)
Operating Temperature Range (OTR)
Lower and upper limits (°C)
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 [email protected] www.euroquartz.co.uk
http://www.Datasheet4U.com
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