ICS83023AMIT datasheet(8/12 Pages) ICST

8 / 12 page

83023AMI

www.icst.com/products/hiperclocks.html

REV. B JANUARY 18, 2006

Integrated

Circuit

Systems, Inc.

ICS83023I

DUAL, 1-TO-1

DIFFERENTIAL-TO-LVCMOS TRANSLATOR/BUFFER

FIGURE 2C. HIPERCLOCKS CLK/nCLK INPUT DRIVEN BY

3.3V LVPECL DRIVER

FIGURE 2B. HIPERCLOCKS CLK/nCLK INPUT DRIVEN BY

3.3V LVPECL DRIVER

FIGURE 2D. HIPERCLOCKS CLK/nCLK INPUT DRIVEN BY

3.3V LVDS DRIVER

3.3V

Zo = 50 Ohm

LVPECL

Zo = 50 Ohm

HiPerClockS

CLK

nCLK

3.3V

Input

Zo = 50 Ohm

Input

HiPerClockS

CLK

nCLK

3.3V

125

Zo = 50 Ohm

3.3V

125

LVPECL

3.3V

DIFFERENTIAL CLOCK INPUT INTERFACE

The CLK /nCLK accepts LVDS, LVPECL, LVHSTL, SSTL,

HCSL and other differential signals. Both V

SWING and VOH must

meet the V

PP and VCMR input requirements. Figures 2A to 2E

show interface examples for the HiPerClockS CLK/nCLK in-

put driven by the most common driver types. The input inter-

FIGURE 2A. HIPERCLOCKS CLK/nCLK INPUT DRIVEN BY

ICS HIPERCLOCKS LVHSTL DRIVER

faces suggested here are examples only. Please consult with

the vendor of the driver component to confirm the driver termi-

nation requirements. For example in Figure 2A, the input ter-

mination applies for ICS HiPerClockS LVHSTL drivers. If you

are using an LVHSTL driver from another vendor, use their

termination recommendation.

1.8V

Input

LVHSTL Driver

ICS

HiPerClockS

LVHSTL

3.3V

Zo = 50 Ohm

HiPerClockS

CLK

nCLK

FIGURE 2E. HIPERCLOCKS CLK/NCLK INPUT DRIVEN BY

3.3V LVPECL DRIVER WITH AC COUPLE

Zo = 50 Ohm

125

HiPerClockS

CLK

nCLK

3.3V

100 - 200

3.3V

100 - 200

Input

R5,R6 locate near the driver pin.

Zo = 50 Ohm

125

LVPECL

Zo = 50 Ohm

100

3.3V

LVDS_Driv er

Zo = 50 Ohm

Receiv er

CLK

nCLK

3.3V

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