ICS308 데이터 시트보기 (PDF) - Integrated Device Technology
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ICS308 Datasheet PDF : 9 Pages
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ICS308
SERIAL PROGRAMMABLE QUAD PLL VERSACLOCK SYNTHESIZER
SER PROG CLOCK SYNTHESIZER
AC Electrical Characteristics
VDD = 3.3 V±10%, Ambient Temperature -40 to +85° C, unless stated otherwise
Parameter
Symbol
Conditions
Min.
Input Frequency
FIN Fundamental crystal
5
Typ.
Max. Units
27 MHz
Output Frequency
Input Clock
VDD=3.3 V
2
50 MHz
0.25
200 MHz
Output Clock Rise Time
Output Clock Fall Time
Output Clock Duty Cycle
tOR 20% to 80%, Note 1
tOF 80% to 20%, Note 1
Note 2
0.8
ns
0.8
ns
40 49-51 60
%
Power-up Time
STROBE goes high until
stable CLK out
3
10 ms
PDTS goes high until
stable CLK out
.2
2
ms
Maximum Output Jitter, short term
tj
Reference Clock
±300
ps
Maximum Output Jitter, short term
tj
All other clocks,
±200
ps
CL=15 pF, configuration
dependent
Pin-to-Pin Skew
Low Skew Outputs
-250
250 ps
Note 1: Measured with 15 pF load.
Note 2: Duty Cycle is configuration dependent. Most configurations are min 45% / max 55%
Thermal Characteristics
Parameter
Symbol Conditions
Thermal Resistance Junction to
Ambient
θJA Still air
θJA 1 m/s air flow
θJA 3 m/s air flow
Thermal Resistance Junction to Case θJC
Min.
Typ.
135
93
78
60
Max.
Units
° C/W
° C/W
° C/W
° C/W
IDT™ / ICS™ SERIAL PROGRAMMABLE QUAD PLL VERSACLOCK SYNTHESIZER 7
ICS308
REV J 120507
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