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ABE0113 Datasheet(PDF) 4 Page - Abracon Corporation

Part No. ABE0113
Description  Low EMI Spread Spectrum Multiplier Clock
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Maker  ABRACON [Abracon Corporation]
Homepage  http://www.abracon.com/index.htm
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ABE0113 Datasheet(HTML) 4 Page - Abracon Corporation

   
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ABE0113
Low EMI Spread Spectrum Multiplier Clock
30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 4
3. TIMING CHARACTERISTICS
PARAMETERS
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS
Rise Time
Tr
Measured at 0.8V ~ 2.0V @ 3.3V
0.8
0.95
1.1
ns
Fall Time
Tf
Measured at 2.0V ~ 0.8V @ 3.3V
0.78
0.85
0.9
ns
Output Duty Cycle
DT
45
50
55
%
Input to Output Delay
2
4
ns
Cycle to Cycle Jitter
Tcyc-cyc
Over output frequency range @ 3.3V
100
ps
FUNCTIONAL DESCRIPTION
Selectable spread spectrum and modulation rates
The ABE0113 provides selectable multiplication factor, as well as selectable modulation rate. Selection is made by
connecting pins 2 (S2), 3 (S1), 4 (S0), and 7 (S3) to a logical “zero” or “one”, according to the output clock
selection table on page 1.
Default values for S(0:3) through internal pull-up and pull-down resistor
Selection pins S0 and S3 have an internal pull-down resistor of 30k
Ω, pins 2 and 3 (S1 and S2) have an internal
pull-up resistor of 30k
Ω. This internal pull-down (or pull-up) resistor will pull the input value to a logical “zero” (or
“one” respectively) by default, i.e. when the pin is not connected to GND (VDD respectively). In order to override
the internal pull-up (pull-down), the pin has to be connected to VDD (GND respectively).


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