CY28419 Cypress Semiconductor, CY28419 Datasheet - Page 10

• Manufacturer Part Number: CY28419
• Description: Clock Synthesizer
• Manufacturer: Cypress Semiconductor

Document #: 38-07444 Rev. *D
VDD Clock Gen
VTT_PWRGD#
PWRGD_VRM
Clock Outputs
FS_A, FS_B
Clock State
Clock VCO
VDD_A = 2.0V
Power Off
S0
State 0
Off
Off
Figure 6. Clock Generator Power-up/Run State Diagram
0.2-0.3mS
State 1
Delay
VDD_A = off
Figure 5. VTTPWRGD Timing Diagram
>0.25mS
VTT_PWRGD#
Delay
S1
Wait for
On
VTT_PWRGD# = toggle
VTT_PWRGD# = Low
Operation
Sample Sels
Normal
State 2
S3
On
Inputs straps
State 3
Sample
Enable Outputs
S2
VTT_PWRGD# is ignored
Device is not affected,
Wait for <1.8ms
CY28419
Page 10 of 16