PCK2020 查看數據表（PDF） - Philips Electronics

零件编号

产品描述 (功能)

比赛名单

PCK2020

CK00 (100/133MHz) spread spectrum differential system clock generator

Philips Electronics 

Philips Semiconductors

CK00 (100/133MHz) spread spectrum

differential system clock generator

Product specification

PCK2020

FUNCTION TABLES

SEL

100/133

SELA SELB

HOST

MREF

3V66

3V33 PCI

48 MHz

0

0

0

100 MHz

50 MHz

66.7 MHz

33.3 MHz

48 MHz

0

0

1

105 MHz1

52.5 MHz1

70 MHz1

35 MHz1

48 MHz

0

1

0

200 MHz

50 MHz

66.7 MHz

33.3 MHz

N/A

0

1

1

HI-Z

HI-Z

HI-Z

HI-Z

HI-Z

1

0

0

133 MHz

66.7 MHz

66.7 MHz

33.3 MHz

48 MHz

1

0

1

126.7 MHz1

63.3 MHz1

63.3 MHz1

31.7 MHz1

48 MHz

1

1

0

200 MHz

66.7 MHz

66.7 MHz

33.3 MHz

48 MHz

1

1

1

TCLK/2

TCLK/4

TCLK/4

TCLK/8

TCLK/2

NOTE:

1. These frequencies are for debug and thus can vary a small amount from the values listed at the vendor’s discretion.

SEL

100/133

0

0

0

0

1

1

1

1

SELA

0

0

1

1

0

0

1

1

SELB

0

1

0

1

0

1

0

1

Active 100 MHz

Active 100 MHz – ~5% over-clock

200 MHz, 50 MHz MREF

HI-Z all outputs

Active 133 MHz

Active 133.3 MHz minus ~5 under-clock

200 MHz, 66 MHz MREF

Test mode

HOST

REF

14.318 MHz

14.318 MHz

N/A

HI-Z

14.318 MHz

14.318 MHz

14.318 MHz

TCLK

POWER DOWN MODE

PWRDWN HOST/HOST_BAR MREF/MREF_B 3V66

PCI

48 MHz

Asserts low

0 = Active

HOST = 2*IREF

HOST_BAR

LOW

LOW LOW

LOW

NOTE:

1. The differential outputs should have a voltage forced across them when power down is asserted.

REF

OFF

14.318/66 MHz Seeds

LOW/(if applicable)

SPREAD SPECTRUM FUNCTION TABLE

SPREAD

FUNCTION

1

HOST/PCI/3V66/MREF/MREF_B

No spread

0

HOST/PCI/3V66/MREF/MREF_B

Down spread –0.5%

48 MHz PLL

REF/MULTSEL0

REF/MULTSEL1

No spread

No spread

2000 Nov 13

5

Share Link: