CDC586_08 Datasheet, PDF (1/14 Pages) Texas Instruments – 3.3-V PHASE-LOCK-LOOP CLOCK DRIVER

CDC586
www.ti.com
SCAS336E – FEBRUARY 1993 – REVISED APRIL 2004
3.3-V PHASE-LOCK-LOOP CLOCK DRIVER WITH 3-STATE OUTPUTS
FEATURES
• Low Output Skew for Clock-Distribution
and Clock-Generation Applications
• Operates at 3.3-V V_CC
• Distributes One Clock Input to 12
Outputs
• Two Select Inputs Configure Up to Nine
Outputs to Operate at One-Half or Double
the Input Frequency
• No External RC Network Required
• External Feedback Pin (FBIN) Is Used to
Synchronize the Outputs to the Clock Input
• Application for Synchronous DRAM,
High-Speed Microprocessor
• TTL-Compatible Inputs and Outputs
• Outputs Drive Parallel 50-Ω Terminated
Transmission Lines
• State-of-the-Art EPIC-IIB™ BiCMOS Design
Significantly Reduces Power Dissipation
• Distributed V_CC and Ground Pins Reduce
Switching Noise
• Packaged in 52-Pin Thin Quad Flat Package
PAH PACKAGE
(TOP VIEW)
GND
1Y1
V_CC
GND
1Y2
V_CC
GND
1Y3
V_CC
GND
GND
2Y1
V_CC
52 51 50 49 48 47 46 45 44 43 42 41 40
1
39
2
38
3
37
4
36
5
35
6
34
7
33
8
32
9
31
10
30
11
29
12
28
13
27
14 15 16 17 18 19 20 21 22 23 24 25 26
V_CC
4Y3
GND
V_CC
4Y2
GND
V_CC
4Y1
GND
GND
V_CC
3Y3
GND
NC – No internal connection
DESCRIPTION
The CDC586 is a high-performance, low-skew, low-jitter clock driver. It uses a phase-lock loop (PLL) to precisely
align, in both frequency and phase, the clock output signals to the clock input (CLKIN) signal. It is specifically
designed for use with popular microprocessors operating at speeds from 50 MHz to 100 MHz or down to 25 MHz
on outputs configured as half-frequency outputs. The CDC586 operates at 3.3-V V_CC and is designed to drive a
properly terminated 50-W transmission line.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
EPIC-IIB is a trademark of Texas Instruments.
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.
Copyright © 1993–2004, Texas Instruments Incorporated