ICS950812CGLFT IDT, Integrated Device Technology Inc, ICS950812CGLFT Datasheet - Page 23

• Manufacturer Part Number: ICS950812CGLFT
• Description: IC FREQ GEN 200MHZ CLK 56-TSSOP
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Frequency Generatorr

Specifications of ICS950812CGLFT

• Input: Crystal
• Output: Clock
• Frequency - Max: 200MHz
• Voltage - Supply: 3.135 V ~ 3.465 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 56-TSSOP
• Frequency-max: 200MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 950812CGLFT

All 3V66 clocks are to be in phase with each other. All 66MHz_OUT clocks are to be in phase with each other. There is NO
phase relationship between the 3V66 clocks and the 66MHz_OUT and PCI clocks. In the case where 3V66_1 is configured
as 48MHz VCH clock, there is no defined phase relationship between 3V66_1_VCH and other 3V66 clocks. The PCI group
should lag 3V66 by the standard skew described below as Tpci.
The 66MHz_IN to 66MHz_OUT delay is shown in the figure below and is specified to be within a min and max propagation
value.
IDT
1
2
1
Group to Group Skews at Common Transition Edges: Buffered Mode
E_PCICLK to PCICLK Skews
66MHz_IN 66MHz_OUT
Guaranteed by design, not 100% tested in production.
500ps Tolerance
Guaranteed by design, not 100% tested in production.
ICS950812
Frequency Generator with 200MHz Differential CPU Clocks
PCICLK_F (2:0) PCICLK (6:0)
E_PCICLK to PCICLK
TM
66MHz_OUT to PCI
Frequency Generator with 200MHz Differential CPU Clocks
GROUP
GROUP
E_PCICLK (3,1)
66MHz_OUT
Buffered Mode - 3V66[0:1], 66MHz_IN, 66MHz_OUT[0:2] and PCI Phase Relationship
66MHz_IN
3V66
1,2
1
1,2
Tpd
T
T
T
SYMBOL
SYMBOL
E_PCI-PCI1
E_PCI-PCI2
E_PCI-PCI3
Tpci
Tpd
Tepci
Tpci
No Relationship
66MHz_OUT (2:0) leads 33 MHz
66MHz_IN to 66MHz_OUT (2:0)
Propogation delay from
E_PCICLK1 (pin 11)=0
E_PCICLK3 (pin 13)=1
E_PCICLK1 (pin 11)=1
E_PCICLK3 (pin 13)=0
E_PCICLK1 (pin 11)=1
E_PCICLK3 (pin 13)=1
CONDITIONS
CONDITIONS
PCICLK
23
MIN
MIN
2.5
1.5
0.3
0.8
1.3
TYP
TYP
2.9
0.5
1.0
1.5
MAX
MAX
4.5
3.5
0.7
1.2
1.7
UNITS
UNITS
ns
ns
ns
ns
ns
0542J—01/25/10