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3EQHM57 Datasheet(PDF) 2 Page - List of Unclassifed Manufacturers

Part No. 3EQHM57
Description  7 x 5 x 1.8mm SMD Spread Spectrum Clock Ocillator
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Maker  ETC2 [List of Unclassifed Manufacturers]
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3EQHM57 Datasheet(HTML) 2 Page - List of Unclassifed Manufacturers

   
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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
Low EMI Oscillators
OUTLINE & DIMENSIONS
3EQHM57-BT-32.768R-C0.5
Page 2 of 2
PART NUMBER CONFIGURATION
SPREAD TYPES and % MODULATION
DOWN SPREAD
D1.0
-1%
D3.0
-3%
CENTRE SPREAD
C0.5
±0.5%
C1.5
±1.5%
‘T’ for Tristate
Frequency Stability Code
‘A’ to ‘F’. See specification above
Frequency (MHz)
Group ‘R’
7 x 5 x 1.8mm SMD Spread Spectrum Clock Ocillator
AVAILABILITY OF SPREAD TYPES AND MODULATION RATES
3EQHM57 Group ‘R’
Model No:
3EQHM57 (Group ‘R’)
Frequency Range:
3.5MHz to 165.0MHz
Spread Types:
See table below
EMI Reduction*:
-7dBc min. 100MHz at C0.25**
-9dBc min. 100MHz at C0.5**
-15dBc min. 100MHz at C1.5**
With reference to dB level at no
modulation.
Modulation Carrier Frequency:
6.9kHz min, 55.5kHz max.
Frequency dependent
Call for details
Output Logic:
CMOS
Input Voltage:
Vdd = +3.3VDC ±5%
Frequency Stability***
Commercial (0~70°C):
±25ppm (Spec. code = ‘A’)
±50ppm (Spec. code = ‘B’)
±100ppm (Spec. code = ‘C’)
Industrial (-40~+85°C):
±25ppm (Spec. code = ‘D’)
±50ppm (Spec. code = ‘E’)
±100ppm (Spec. code = ‘F’)
Output Voltage HIGH ‘1’:
2.0V min., 3.2V typ. (90%Vdd)
Output Voltage LOW ‘0’:
0.8V max., 0.2V typ. (10%Vdd)
Rise/fall Times:
4ns max, (frequency dependant)
Load:
15pF
Start-up Time:
2ms typical, 5ms max.
Storage Temperature:
-65° to +150°C
Current Consumption:
10 ~ 50MHz:
10mA typical
50 ~ 125MHz:
18mA typical
Duty Cycle:
50%±5% (CL=15pF, 50%Vdd)
Cyle to Cycle Jitter:
±250ps typ. ±300ps max.
Output Impedance:
40 Ohms typical
Static Discharge Voltage:
>2000V (per MIL STD 833)
Ageing:
±5ppm /year max at Ta=25°C
Packaging:
EIA 16mm tape and reel, 1k per.
Pad 1 Option:
Output Enable/Disable. Output is
high impedance when taken low
Output enable time 100ms max.
Notes:
*
EMI reduction is applied to the entire frequency spectrum
**
dBc: with respect to no modulation. Frequency and total %
spread dependant.
*** Frequency Stability parameter excludes modulation.
SPECIFICATION
Series designation
ENVIRONMENTAL SPECIFICATION
RoHS Compliance:
RoHS compliant and Pb (lead) free
Storage Temperature Range:
-55° to +125°C
Humidity:
85% RH, 85°C for 48 hours
Hermetic Seal:
Leak Rate 2x10-8 ATM-cm3/s max.
Solderability:
MIL-STD-2002F method 208E
Reflow:
260° for 10 seconds
Vibration:
MIL-STD-202F method 204,
35g 50Hz to 2000Hz
Shock:
MIL-STD-202F method 213B, test
condition: E, 1000g ½ sine wave


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