SCAS643H
–
SEPTEMBER 2000
–
REVISED FEBRUARY 2011
200-MHz GENERAL-PURPOSE CLOCK BUFFER, PCI-X COMPLIANT
Check for Samples:
1
FEATURES
General-Purpose and PCI-X 1:4 Clock Buffer
Operating Frequency
–
0 MHz to 200 MHz General-Purpose
Low Output Skew:
<100
ps
Distributes One Clock Input to One Bank of
Four Outputs
Output Enable Control that Drives Outputs
Low when OE is Low
Operates from Single 3.3-V Supply or 2.5-V
Supply
•
•
•
•
•
•
•
•
PCI-X Compliant
8-Pin TSSOP Package
TSSOP
PW PACKAGE
(TOP VIEW)
CLKIN
OE
1Y0
GND
1
2
3
4
8
7
6
5
1Y3
1Y2
V
DD
1Y1
DESCRIPTION
The CDCV304 is a high-performance, low-skew, general-purpose PCI-X compliant clock buffer. It distributes one
input clock signal (CLKIN) to the output clocks (1Y[0:3]). It is specifically designed for use with PCI-X
applications. The CDCV304 operates at 3.3 V and 2.5 V and is therefore compliant to the 3.3-V PCI-X
specifications.
The CDCV304 is characterized for operation from
–40°C
to 85°C for automotive and industrial applications.
FUNCTIONAL BLOCK DIAGRAM
OE
2
Logic
Control
3
1Y0
CLKIN
1
5
1Y1
7
1Y2
8
1Y3
Table 1. FUNCTION TABLE
INPUTS
CLKIN
L
H
L
H
OE
L
L
H
H
OUTPUTS
1Y[0:3]
L
L
L
H
1
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Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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2000–2011, Texas Instruments Incorporated