Low EMI Oscillators
EQHM14 Group ‘R’
14 pin Dual-in-Line Spread Spectrum Clock Ocillator
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SPECIFICATION
OUTLINE & DIMENSIONS
Model No:
3EQHM14 (Group ‘R’)
Frequency Range:
Spread Types:
EMI Reduction*:
5.0MHz to 160.0MHz
See table below
-7dBc min. 100MHz at C0.25**
-9dBc min. 100MHz at C0.5**
-15dBc min. 100MHz at C1.5**
Modulation Carrier Frequency: 6.9kHz min, 55.5kHz max.
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’:
Output Voltage LOW ‘0’:
Load:
2.0V min., 3.2V typ. (90%Vdd)
0.8V min., 0.2V typ. (10%Vdd)
15pF
Start-up Time:
2ms typical, 5ms max.
Current Consumption:
10MHz: 7mA, 32.768MHz: 8mA
75MHz: 17mA, 125MHz: 18mA
50%±5% (CL=15pF, 50&Vdd)
±250ps typ. ±300ps max.
40 Ohms
Duty Cycle:
Cyle to Cycle Jitter:
Output Impedance:
Static Discharge Voltage:
Storage Temperature:
Ageing:
>2000V (per MIL STD 833)
-65°C to +150°C
±5ppm /year max at Ta=25°C
EIA 16mm tape and reel, 1k per.
Output Enable/Disable. Tristate
output when LOW. 100kOhm
internal pull-up resistor.
Output enable time 100ns max.
Packaging:
Pad 1 Option:
Notes:
*
EMI reduction is applied to the entire frequency
** dBc: with respect to no modulation. Frequency and total %
spread dependant. Call Euroquartz technical sales for detail.
*** Frequency Stability parameters excludes modulation.
PART NUMBER CONFIGURATION
AVAILABILITY OF SPREAD TYPES AND MODULATION RATES
‘T’ for Tristate
Group ‘R’
SPREAD TYPES and % MODULATION
DOWN SPREAD
D1.0
-1%
-3%
3EQHM14-BT-32.768R-C0.5
D3.0
CENTRE SPREAD
Frequency (MHz)
C0.5
C1.5
±0.5%
±1.5%
Frequency Stability Code
‘A’ to ‘F’. See specification above
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