PI6LC4833 datasheet(4/13 Pages) PERICOM

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P-0.1

06/14/11

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PI6LC4833

Clock Generator for Power PC

Function Table

Output

Buffer

Frequency (MHz)

Selection Pin

QA0+/-, QA1+/-, QA2+/-,

QA3+/-

HCSL x4

100, 125, 200, 250

FA1, FA0

QB1, QB0

CMOS x2

33.3333, 50, 66.6667, 100

FB1, FB0

QC0+/-

LVPECL x1 125, 156.25, 312.5

Sel_Freq3

QC1

CMOS x1

125, 156.25, HiZ

QD0+/-

LVPECL x1 25, 125

Sel_Freq1

QD2, QD1

CMOS x2

25, 125

Qref2, Qref1, Qref0

CMOS x3

25, 125

Sel_Freq2

FB1

FB0

QB0

QB1

Output

33.33MHz

LVCMOS

66.66MHz

LVCMOS

100MHz

LVCMOS

50MHz

LVCMOS

FA1

FA0

QA0+ /QA0-

QA1+ /QA1-

QA2+ /QA2-

QA3+ /QA3-

100MHz

125MHz

200MHz

250MHz

Pin Number

Pin Name

I/O Type

Description

Sel_Freq3

Input

Low: QC 156.25MHz Output

High: 125MHz Output

Floating: Output 312.5MHz (QC1 is HiZ if floating)

This pin has a built-in pull-up resistor of 150kΩ and pull-down resistor

of 100kΩ.

39, 38

SS1, SS0

Input

Spread Selection Pin for QA and QB

This pin has a built-in pull-up resistor of 100kΩ (see function table).

IREF

Input

External resistor connection for internal current reference

VSEL_33

Input

Low: 2.5V mode, High: 3.3V mode

This pin has a built-in pull_up resistor of 100kΩ

11-0074

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