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Integrated Device Technology Electronic Components Datasheet

ICS1493A-19 Datasheet

CLOCK GENERATOR

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ICS1493A-19 pdf
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


Integrated Device Technology Electronic Components Datasheet

ICS1493A-19 Datasheet

CLOCK GENERATOR

No Preview Available !

ICS1493A-19 pdf
ICS1493A-19
CLOCK GENERATOR FOR AUTOMOTIVwEwAw.PDaPtaLSIhCeeAt4TU.IcOomN
Pin Assignment
X1
GNDX
CLK19
GND14&19
VDD14&19
CLK14
VDD48
GND48
CLK48
VDD22
GND22
CLK22
VDD66
CLK66
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28 X2
27 VDDX
26 FSEL
25 OE
24 SSEN
23 VDDPLL
22 GNDPLL
21 CLK66
20 VDD66
19 CLK33
18 VDD33
17 GND33
16 GND66
15 CLK66
28-pin (173 mil) TSSOP
Pin Descriptions
Spread Enable Table 1
SSEN
0
1
66.60/33.30 MHz Clock
No spread (default)
-1.0%
Output Enable Function Table 2
OE Output Status
0 Stopped low
1 Running (default)
Frequency Select Table 3
FSEL
0
1
Clock Selected (MHz)
12.288
33.30 (default)
Pin
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Pin
Name
X1
GNDX
CLK19
GND14&19
VDD14&19
CLK14
VDD48
GND48
CLK48
VDD22
GND22
CLK22
VDD66
CLK66
CLK66
Pin
Type
Input
Power
Output
Power
Power
Output
Power
Power
Output
Power
Power
Output
Power
Output
Output
Pin Description
Crystal connection. Connect to a 19.35 MHz fundamental crystal.
Crystal oscillator circuit ground.
19.35 MHz reference clock output. Internal weak pull-down resistor.
Connect to 14.7456 MHz and 19.35 MHz clock output ground.
Output driver power for 14.7456 MHz clock output.
14.7456 MHz clock output. Internal weak pull-down resistor.
Output driver power for 48 MHz clock output.
Connect to 48 MHz clock output ground.
48 MHz clock output. Internal weak pull-down resistor.
Output driver power for 22.5792 MHz clock output.
Connect to 22.5792 MHz clock output circuit ground.
22.5792 MHz clock output. Internal weak pull-down resistor.
Output driver power for 66.60 MHz clock output.
66.60 MHz clock output. Internal weak pull-down resistor.
66.60 MHz clock output. Internal weak pull-down resistor.
MDS 1493A-19 C
2
Integrated Device Technology, Inc. w w w. i d t . c o m
Revision 051310


Part Number ICS1493A-19
Description CLOCK GENERATOR
Maker Integrated Device Technology
Total Page 8 Pages
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1 ICS1493A-19 CLOCK GENERATOR Integrated Device Technology
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