C9827H Просмотр технического описания (PDF) - Cypress Semiconductor

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Компоненты Описание

производитель

C9827H

High Performance Pentium® 4 Clock Synthesizer

Cypress Semiconductor 

Approved Product

C9827H

High Performance Pentium® 4 Clock Synthesizer

Maximum Lumped Capacitive Output

Loads

Clock

Max Load

PCI Clocks

30

3V66 (0,1)

30

66B(0:2)

30

48MUSB Clock

20

48MDOT

10

REF Clock

30

Table 5

Units

pF

pF

pF

pF

pF

pF

Maximum Ratings¹

Input Voltage Relative to VSS:

VSS-0.3V

Input Voltage Relative to VDDQ or AVDD: VDD+0.3V

Storage Temperature:

-65°C to + 150°C

Operating Temperature:

0°C to +85°C

Maximum Power Supply:

3.5V

Note 1: The voltage on any input or I/o pin cannot exceed the

power pin during power-up. Power supply sequencing is NOT

required.

Test and Measurement Setup

For Differential CPU Output Signals

The following diagram shows lumped test load configurations for the differential Host Clock Outputs.

CLK

RtA1

Mult0

CLK#

RtA2

Rref

TPCB

RLA1

TPCB

RLA2

RLB1

RLB2

RtB1

RD

RtB2

CLK Measurement Point

CLA

CLK Measurement Point

CLB

Lumped Test Load Configuration

Component

RtA1, RtA2

RLA1, RLA2

TPCB

RLB1, RLB2

RD

RtB1, RtB2

CLA, CLB

Rref

0.7 Volt Amplitude Value

33 Ω

49.9 Ω

3” 50 ΩZ

∞

∞

0Ω

2pF

475 Ω w/mult0=1

Cypress Semiconductor Corporation

http://www.cypress.com

1.0 Volt Amplitude Value

0Ω

∞

3” 50 ΩZ

63 Ω

470 Ω

33 Ω

2 pF

221 Ω w/mult0=0

Document#: 38-07106 Rev. *A

12/26/2002

Page 10 of 25

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