W320-04H Datasheet W320-04HT, CYW320OXC-4T, CYW320OXC-4 | P10-P12

W320-04

.....................Document #: 38-07010 Rev. *C Page 10 of 16

Switching Waveforms

Duty Cycle Timing (Single-ended Output)

Duty Cycle Timing (CPU Differential Output)

All Outputs Rise/Fall Time

OUTPUT

CPU-CPU Clock Skew

Host_b

Host

Host_b

Host

3V66-3V66 Clock Skew

3V66

PCI-PCI Clock Skew

PCI

W320-04

.....................Document #: 38-07010 Rev. *C Page 11 of 16

Switching Waveforms (continued)

3V66

PCI

3V66-PCI Clock Skew

CPU Clock Cycle-Cycle Jitter

Host_b

Host

Cycle-Cycle Clock Jitter

CLK

PWRDWN# Assertion

Power Down Rest of Generator

UNDEF

66BUFF

PCI_F (APIC)

CPU

CPU#

3V66

66IN

USB

REF

PCI

PWR_DWN#

Note: PCI_STOP# asserted LOW

W320-04

.....................Document #: 38-07010 Rev. *C Page 12 of 16

PWRGD# Timing Diagrams

PWRDWN# Deassertion

10-30 s min.

100-200 s max.

< 3 ms

66BUFF1/GMCH

66BUFF0,2

PCI

PWR_DWN#

CPU

CPU#

3V66

66IN

USB

REF

PCI_F (APIC)

Note: PCI_STOP# asserted LOW

GND VRM 5/12V

PWRGD#

VID [3:0]

BSEL [1:0]

PWRGD# FROM

VRM

PWRGD# FROM

NPN

Possible glitch while Clock VCC is coming

up. Will be gone in 0.2–0.3 mS delay.

VCC CPU CORE

PWRGD#

VCC W320 CLOCK

0.2 -- 0.3 ms

delay

Wait for

PWRGD#

Sample

BSELS

CLOCK STATE

State 0

State 1 State 2 State 3

OFF

CLOCK VCO

CLOCK OUTPUTS

Figure 2. CPU Power Before Clock Power

GEN

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P16

W320-04H

Mfr. #:

Buy W320-04H

Manufacturer:

Silicon Labs

Description:

IC CLK/DRVR CPUOUT 200MHZ 56SSOP

Lifecycle:

New from this manufacturer.

Delivery:

DHL FedEx Ups TNT EMS

Payment:

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W320-04H

W320-04H

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