CY28409 Cypress Semiconductor, CY28409 Datasheet - Page 12

• Manufacturer Part Number: CY28409
• Description: Clock Synthesizer with Differential SRC and CPU Outputs
• Manufacturer: Cypress Semiconductor

Document #: 38-07445 Rev. *B
VDD Clock Gen
VTT_PWRGD#
PWRGD_VRM
Clock Outputs
FS_A, FS_B
Clock State
Clock VCO
VDDA = 2.0V
Power Off
S0
State 0
Off
Off
Figure 10. Clock Generator Power-up/Run State Diagram
0.2-0.3mS
State 1
Delay
Figure 9. VTT_PWRGD# Timing Diagram
VDDA = off
>0.25mS
VTT_PWRGD#
Delay
S1
Wait for
On
VTT_PWRGD# = toggle
VTT_PWRGD# = Low
Operation
Normal
Sample Sels
State 2
S3
Inputs straps
On
State 3
Sample
Enable Outputs
S2
VTT_PWRGD# is ignored
Wait for <1.8ms
Device is not affected,
CY28409
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