8535-31 データシートの表示（PDF） - Integrated Device Technology

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8535-31

LOW SKEW, 1-TO-4, CRYSTAL OSCILLATOR/LVCMOS-TO-3.3V LVPECL FANOUT BUFFER

Integrated Device Technology 

Integrated

ICS8535-31

ICS8535-31

L S , 1- -4, C O / LOW SKEW,

Circuit

1-TOS-4y, sCtRemYSsT, IAnLcO. SCILLATOR/

LVCMOS-TO-3.3V

LVPOEWCL

FKAENWOUT

BUTOFFER

LVCMOS- -3.3V LVPECL F B TO

RYSTAL SCILLATORTSD

ANOUT UFFER

TABLE 3A. CONTROL INPUT FUNCTION TABLE

Inputs

Outputs

CLK_EN

CLK_SEL

Selected Source

Q0:Q3

nQ0:nQ3

0

0

CLK

Disabled; LOW

Disabled; HIGH

0

1

XTAL_IN, XTAL_OUT

Disabled; LOW

Disabled; HIGH

1

0

CLK

Enabled

Enabled

1

1

XTAL_IN, XTAL_OUT

Enabled

Enabled

After CLK_EN switches, the clock outputs are disabled or enabled following a rising and falling input clock or crystal

oscillator edge as shown in Figure 1.

In the active mode, the state of the outputs are a function of the CLK input as described in Table 3B.

CLK

CLK_EN

Disabled

Enabled

nQ0:nQ3

Q0:Q3

FIGURE 1. CLK_EN TIMING DIAGRAM

TABLE 3B. CLOCK INPUT FUNCTION TABLE

Inputs

CLK

0

1

Outputs

Q0:Q3

nQ0:nQ3

LOW

HIGH

HIGH

LOW

8535AG-31

www.icst.com/products/hiperclocks.html

3

IDT™ / ICS™ LOW SKEW, 1-TO-4, CRYSTAL OSCILLATOR/ LVCMOS-TO-3.3V LVPECL FANOUT BUFFER

3

REV. B APRIL 29, 2005

ICS8535-31

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