ICS1493A-19 데이터 시트보기 (PDF) - Integrated Device Technology
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ICS1493A-19 Datasheet PDF : 8 Pages
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ICS1493A-19
CLOCK GENERATOR FOR AUTOMOTIVE APPLICATION
Parameter
Symbol Conditions
Internal Pull-down Resistor RPd All clock outputs
except SSEN pin
SSEN pin
Min.
Typ.
200
100
Max.
Units
kΩ
kΩ
AC Electrical Characteristics
Unless stated otherwise, VDD = 3.3 V ±10%, Ambient Temperature -40 to +85° C
Parameter
Symbol
Conditions
Min. Typ. Max. Units
Input Frequency
fIN
Output Rise Time
tOR
Output Fall Time
tOF
Output Clock Duty Cycle
Output-to-Output Skew
20% to 80%, CL=12 pF
80% to 20%, CL=12 pF
at VDD/2, CL=12 pF
at VDD/2, Pin 3, CL=12 pF
Pins 14, 15, and 21 only
19.35
MHz
1.1 1.5 ns
1.1 1.5 ns
45
50 55
%
40
50 60
%
175 ps
Output Enable Time
OE going high to output valid
1
ms
Output Disable Time
OE going low to output Invalid
1
ms
Power-up Time
Power on to output valid
20 ms
Spread Modulation
Spread rate
32
kHz
Jitter, Cycle-to-cycle
All clocks except reference clock
19.35 MHz
300
ps
Jitter, Cycle-to-cycle
Reference clock 19.35 MHz
500
ps
Jitter, Peak-to-peak
Peak-to-peak, all clocks except
reference clock 19.35 MHz
±150
ps
Jitter, Peak-to-peak
Peak-to-peak, reference clock
19.35 MHz
±250
ps
Output Frequency
Synthesis Error
All clocks
10 ppm
Transition Time
tTR Measured from a change of FSEL
until clock stable within ±1%
1
ms
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.
83
75
61
60
Max.
Units
° C/W
° C/W
° C/W
° C/W
MDS 1493A-19 C
6
Integrated Device Technology, Inc. ● w w w. i d t . c o m
Revision 051310
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