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CY28322-2 Datasheet(PDF) 13 Page - Cypress Semiconductor

Part No. CY28322-2
Description  133-MHz Spread Spectrum Clock Synthesizer with Differential CPU Outputs
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Maker  CYPRESS [Cypress Semiconductor]
Homepage  http://www.cypress.com
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CY28322-2 Datasheet(HTML) 13 Page - Cypress Semiconductor

 
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PRELIMINARY
CY28322-2
Document #: 38-07145 Rev. *B
Page 13 of 17
PWRGD# Timing Diagrams
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
ON
OFF
OFF
CLOCK VCO
CLOCK OUTPUTS
Figure 2. CPU Power BEFORE Clock Power
ON
GEN
Figure 3. CPU Power AFTER Clock Power
GND VRM 5/12V
PWRGD#
VID [3:0]
BSEL [1:0]
PWRGD# FROM
VRM
PWRGD# FROM
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
S tate 3
OFF
OFF
CLOCK VCO
LOCK OUTPUTS
ON
ON
GEN


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