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PDF ICS1493A-19 Data sheet ( Hoja de datos )

Número de pieza ICS1493A-19
Descripción CLOCK GENERATOR
Fabricantes Integrated Device Technology 
Logotipo Integrated Device Technology Logotipo



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ICS1493A-19www.DataSheet4U.com
CLOCK GENERATOR FOR AUTOMOTIVE APPLICATION
Description
Features
The ICS1493A-19 is a low cost frequency generator
used for automotive application. Using patented
Phase-Locked-Loop (PLL) techniques, the device uses
a 19.35 MHz fundamental crystal source to produce
seven clock outputs and one reference clock output.
The output clocks are at 12.288 MHz, 14.7456 MHz,
22.5792 MHz, 48 MHz, 66.60 MHz, and 33.30 MHz
with a 19.35 MHz reference clock output. The 66.60
MHz and 33.30 MHz clocks have a spread select
option. Operating voltage of the ICS1493A-19 is 3.3 V.
ICS makes many frequency generators. Contact us for
all of your clocking needs.
Block Diagram
Packaged in 28-pin TSSOP (4.4mm body)
Low power CMOS technology
Input crystal frequency of 19.35 MHz
3.3 V operating voltage
Seven output clocks: 12.288 /33.30 MHz, 14.7456
MHz, 22.5792 MHz, 48 MHz, 66.60 MHz (3 copies)
One reference clock output at 19.35 MHz
Spread select option on the 66.60 MHz clock (3
copies) and 33.30 MHz clock outputs
Output enable pin stops clocks low (tri-state with
weak pull-down resistors)
Zero ppm synthesis error for 48 MHz, 19.35 MHz
clocks; 0.5 ppm error for 12.288 MHz, 14.7456 MHz,
22.5792 MHz clocks; 1 ppm error for 66.60 MHz and
33.30 MHz clocks.
Industrial temperature range (-40°C to +85°C)
VDD
8
SSEN
PLLA with
Spread
Spectrum
PLLB
3 66.60M
12.288M/
33.30M
14.7456M
PLLC
48M
X1
19.35 MHz
Crystal
X2
Crystal
Oscillator
External tuning
capacitors required
PLLD
7
GND
22.5792M
19.35M
FSEL OE
MDS 1493A-19 C
1
Integrated Device Technology, Inc. w w w. i d t . c o m
Revision 051310

1 page




ICS1493A-19 pdf
ICS1493A-19
CLOCK GENERATOR FOR AUTOMOTIVwEwAw.PDaPtaLSIhCeeAt4TU.IcOomN
Absolute Maximum Ratings
Stresses above the ratings listed below can cause permanent damage to the ICS1493A-19. These ratings,
which are standard values for IDT commercially rated parts, are stress ratings only. Functional operation of
the device at these or any other conditions above those indicated in the operational sections of the
specifications is not implied. Exposure to absolute maximum rating conditions for extended periods can
affect product reliability. Electrical parameters are guaranteed only over the recommended operating
temperature range.
Item
Supply Voltage, VDD
All Inputs and Outputs
Ambient Operating Temperature
Storage Temperature
Junction Temperature
Soldering Temperature
Rating
-0.5 V to 7 V
-0.5 V to VDD+0.5 V
-40 to +85° C
-65 to +150° C
125° C
260° C
Recommended Operation Conditions
Parameter
Ambient Operating Temperature
Power Supply Voltage (measured in respect to GND)
Min.
-40
+3.0
Typ.
+3.3
Max.
+85
+3.6
Units
°C
V
DC Electrical Characteristics
Unless stated otherwise, VDD = 3.3 V ±10%, Ambient Temperature -40 to +85° C
Parameter
Symbol Conditions
Min. Typ.
Operating Voltage
VDD
3.0 3.3
Supply Current
IDD No load
80
Input High Voltage
Input Low Voltage
Output High Voltage
Output High Voltage
Output Low Voltage
Short Circuit Current
VIH 2
VIL
VOH IOH = -4 mA
VDD-0.4
VOH IOH = -12 mA
2.4
VOL IOL = 12 mA
IOS Clock outputs,15 and
21
±80
Short Circuit Current
IOS Clock outputs 3, 6, 9,
12, 14, and 19
±70
Input Capacitance
Nominal Output Impedance
Internal Pull-up Resistor
CIN
ZOUT
RPU
Input
FSEL, OE pins
5
20
200
Max.
3.6
0.8
0.4
Units
V
mA
V
V
V
V
V
mA
mA
pF
k
MDS 1493A-19 C
5
Integrated Device Technology, Inc. w w w. i d t . c o m
Revision 051310

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