ICS85301 datasheet(8/19 Pages) ICST

8 / 19 page

85301AK

www.icst.com/products/hiperclocks.html

REV. A JANUARY 16, 2006

Integrated

Circuit

Systems, Inc.

ICS85301

2:1

DIFFERENTIAL-TO-LVPECL MULTIPLEXER

APPLICATION INFORMATION

FIGURE 1A. SINGLE ENDED LVCMOS SIGNAL DRIVING DIFFERENTIAL INPUT

Figure 1A shows an example of the differential input that

can be wired to accept single ended LVCMOS levels. The

reference voltage level V

BB generated from the device is

WIRING THE DIFFERENTIAL INPUT TO ACCEPT SINGLE ENDED LVCMOS LEVELS

connected to the negative input. The C1 capacitor should

be located as close as possible to the input pin.

FIGURE 1B. SINGLE ENDED LVPECL SIGNAL DRIVING DIFFERENTIAL INPUT

Figure 1B shows an example of the differential input that

can be wired to accept single ended LVPECL levels. The

reference voltage level V

BB generated from the device is

connected to the negative input.

WIRING THE DIFFERENTIAL INPUT TO ACCEPT SINGLE ENDED LVPECL LEVELS

VCC

V_REF

0.1u

Single Ended Clock Input

PCLK

nPCLK

VCC(or VDD)

CLK_IN

PCLK

nPCLK

VBB

ICS85301 Datasheet(PDF) 8 Page - Integrated Circuit Systems