CY28RS400ZCT SPECTRALINEAR [SpectraLinear Inc], CY28RS400ZCT Datasheet - Page 12

• Manufacturer Part Number: CY28RS400ZCT
• Description: Clock Generator for ATI RS400 Chipset
• Manufacturer: SPECTRALINEAR [SpectraLinear Inc]

Rev 1.0, November 22, 2006
FS_A, FS_B,FS_C
VDD Clock Gen
VTT_PW RGD#
PW RGD_VRM
Clock Outputs
Clock State
Clock VCO
VDD_A = 2.0V
Power Off
S0
State 0
Off
Off
Figure 11. Clock Generator Power-up/Run State Diagram
0.2-0.3mS
State 1
Delay
Figure 10. VTT_PWRGD# Timing Diagram
VDD_A = off
>0.25mS
Delay
VTT_PW RGD#
S1
W ait 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_PW RGD# is ignored
Device is not affected,
Wait for <1.8ms
CY28RS400
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