mk1493-01 ETC-unknow, mk1493-01 Datasheet

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mk1493-01

Manufacturer Part Number
mk1493-01
Description
Clock Generator
Manufacturer
ETC-unknow
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
mk1493-01G
Manufacturer:
ICS
Quantity:
20 000
MDS 1493-01 B
Integrated Circuit Systems, Inc.
Description
The MK1493-01 is a general purpose clock generator
part that provides an integrated clocking solution for
PCI /networking applications. It provides 8 individually
programmable PCI clocks, 2 CPU clocks, additional
fixed PCI clocks and a 25 MHz reference clock for LAN
support. This part incorporates ICS’s newest clock
technology, offering more robust features and
functionality. Using a serially programmable SMBus
interface, the MK1493-01 can select the output clock
frequency, and enabling/disabling each individual
output clock.
Block Diagram
FS(0:7)_A
25 MHz
FS(0:7)_B
SDATA
SCLK
X1/CLK
X2
8
8
Clock Buffer/
Ocsillator
Crystal
525 Race Street, San Jose, CA 95126
SMBus Programmable
Buffer Circuits
Divider
PLL
VDD
GND
1
7
7
Features
8 PCI clocks at 25, 33, 50, 66.66 MHz individually pin
selectableand serioal port slectable
2 CPU clocks at 100 MHz
2 PCI clocks at 66.66 MHz
1 PCI clock @ 50 MHz
25 MHz reference clock
SMBus Programming
Power-up default frequency can be selected through
FS inputs
25 MHz crystal or clock input required
PCICLK cycle to cycle jitter <250ps
CPUCLK cycle to cycle jitter <100ps
Packaged in 48-pin (240mil) TSSOP Package
Operating Voltage 3.3V + - 5%
tel (408) 297-1201
PCI Clock Generator
2
2
8
MK1493-01
PCICLK(0:7)
Each PCI Output
Clock Individually
Programmable
CPUCLK(100MHz)
66M CLK
50M CLK
REFCLK
www.icst.com
Revision 021204

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mk1493-01 Summary of contents

Page 1

... Description The MK1493- general purpose clock generator part that provides an integrated clocking solution for PCI /networking applications. It provides 8 individually programmable PCI clocks, 2 CPU clocks, additional fixed PCI clocks and a 25 MHz reference clock for LAN support. This part incorporates ICS’s newest clock technology, offering more robust features and functionality ...

Page 2

... Data pin for SMBus circuitry tolerant. Connect to ground. Crystal connection/input clock. Connect MHz fundamental mode crystal. Crystal connection. Connect MHz fundamental mode crystal or leave open. Connect to +3 525 Race Street, San Jose, CA 95126 MK1493-01 PCI Clock Generator Pull up resistor. . Pull up resistor. . Pull up resistor. ...

Page 3

... Frequency select input pin for PCI CLK6 per per table 1 Frequency select input pin for PCI CLK5 per per table 1 Frequency select input pin for PCI CLK4 per per table 1 3 525 Race Street, San Jose, CA 95126 MK1493-01 PCI Clock Generator Pull-up resistor. . Pull-up resistor. ...

Page 4

... PCICLK Beginning Byte = N SCLK Data Byte Count = X PLL Beginning Byte Byte ( 525 Race Street, San Jose, CA 95126 MK1493-01 PCI Clock Generator Index Block Write Operation ICS (Slave/Receiver) starT bit (H) WRite ACK ACK ACK ACK ACK ...

Page 5

... N P Control Type Function RESERVED HW/SW select RW RESERVED RESERVED RESERVED Frequency Selection 5 525 Race Street, San Jose, CA 95126 MK1493-01 PCI Clock Generator Index Block Read Operation ICS (Slave/Receiver) starT bit (H) WRite ACK ACK Repeat starT (H) ReaD ACK Data Byte Count=X ACK Beginning Byte N ...

Page 6

... Output Control RW Output Control RW Output Control RW Output Control RW Type See Frequency Table 525 Race Street, San Jose, CA 95126 MK1493-01 PCI Clock Generator 0 1 PWD Disable Enable 1 Disable Enable 1 Disable Enable 1 Disable Enable 1 Disable Enable 1 Disable Enable ...

Page 7

... Integrated Circuit Systems, Inc. Type See Frequency Table Type Type 525 Race Street, San Jose, CA 95126 MK1493-01 PCI Clock Generator 1 PWD PWD RESERVED PWD RESERVED Revision 021204 ● ...

Page 8

... CLK50 (MHz) (MHz) 100.00 50.00 105.00 nominal + 5% 110.00 nominal + 10% 95.00 nominal - 5% 90.00 nominal - 10% 8 525 Race Street, San Jose, CA 95126 MK1493-01 PCI Clock Generator 1 PWD REVISION ID VENDOR ID 1 PWD bytes will be read back, default 08=8 bytes CLK66A1,A0 PCICLK (MHz) (MHz) 66.66 nominal nominal + 5% nominal + 5% ...

Page 9

... Absolute Maximum Ratings Stresses above the ratings listed below can cause permanent damage to the MK1493-01. These ratings, which are standard values for ICS 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 ...

Page 10

... Symbol Conditions *(0.5) DSP O DD Note -12 mA, Note 525 Race Street, San Jose, CA 95126 MK1493-01 PCI Clock Generator Min. Typ. Max. Units Min. Typ. Max. Units 100 MHz 12 55 2.4 0.3 0.4 - 1.2 1 ...

Page 11

... Note 0 2.4 V, Note 2 0.4 V, Note 525 Race Street, San Jose, CA 95126 MK1493-01 PCI Clock Generator Min. Typ. Max. Units 0.3 0.4 -19 19 1.2 1.7 1.2 1 175 250 Min. Typ. Max. Units 25 MHz 12 55 2.4 0.55 -33 mA ...

Page 12

... V OL OL@MAX Note 0 2.4 V, Note 2 0.4 V, Note 1 1 525 Race Street, San Jose, CA 95126 MK1493-01 PCI Clock Generator Min. Typ. Max. Units 25 MHz 20 60 2.4 0.4 - 1.2 1.7 ns 1.2 1 500 ps Revision 021204 ● ...

Page 13

... COMMON DIMENSIONS COMMON DIMENSIONS SEATING SEATING PLANE PLANE aaa C Shipping packaging Tubes Tape and Reel 13 525 Race Street, San Jose, CA 95126 MK1493-01 PCI Clock Generator (240 mil) (16 mil) In Millimeters In Inches MIN MAX MIN MAX -- 1.20 -- .047 0.05 0.15 .002 .006 0.80 1.05 .032 .041 0.13 0.23 ...

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