ics9fg107 Integrated Device Technology, ics9fg107 Datasheet

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ics9fg107

Manufacturer Part Number
ics9fg107
Description
Programmable Ftg For Differential P4tm Cpu, Pci-express & Sata Clocks
Manufacturer
Integrated Device Technology
Datasheet
Programmable FTG for Differential P4
Clocks
Description
ICS9FG107 is a Frequency Timing Generator that provides 7
differential output pairs that are compliant to the Intel CK409/CK410
specification. It provides support for PCI-Express, next generation I/
O, and SATA. The part synthesizes several output frequencies from
either a 14.31818 Mhz crystal or a 25 MHz crystal. The device can
also be driven by a reference input clock instead of a crystal. It
provides outputs with cycle-to-cycle jitter of less than 85 ps and
output-to-output skew of less than 85 ps.
ICS9FG107 also provides a copy of the reference clock and 333
MHz PCI output clocks. Frequency selection can be accomplished
via strap pins or SMBus control.
Funtional Block Diagram
IDT
TM
/ICS
TM
Programmable FTG for Differential P4
SEL14M_25M#
DWNSPRD#
DIF_STOP#
XIN/CLKIN
SPREAD
OE (6:0)
FS (2:0)
SDATA
SCLK
X2
Control
Logic
TM
CPU, PCI-Express & SATA Clocks
Programmable
TM
Spread
PLL1
CPU, PCI-Express & SATA
1
Features/Benefits
Key Specifications
Generates common CPU/PCI Express frequencies from
14.318 MHz or 25 MHz
Crystal or reference input
7 - 0.7V current-mode differential output pairs
3 - 33MHz PCI outputs
1 - REFOUT
Supports Serial-ATA at 100 MHz
Two spread spectrum modes: 0 to -0.5 downspread and
+/-0.25% centerspread
Unused inputs may be disabled in either driven or Hi-Z
state for power management.
Output cycle-to-cycle jitter for DIF outputs < 50 ps (<85ps
@ 266 MHz)
Output to output skew for DIF outputs < 85 ps
+/-300 ppm frequency accuracy on output clocks
48-pin SSOP/TSSOP package
Available in RoHS compliant packaging
Programmable
Frequency
Dividers
ICS9FG107
PCICLK (1:0)
PCICLK_F
DIF (6:0)
DIF# (6:0)
I REF
REFOUT
DATASHEET
ICS9FG107
REV F 08/21/07

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ics9fg107 Summary of contents

Page 1

... It provides outputs with cycle-to-cycle jitter of less than 85 ps and output-to-output skew of less than 85 ps. ICS9FG107 also provides a copy of the reference clock and 333 MHz PCI output clocks. Frequency selection can be accomplished via strap pins or SMBus control. ...

Page 2

... ICS9FG107 100.00 125.00 133.33 166.67 200.00 266.66 333.33 400.00 100.00 125.00 133.33 166.67 200.00 266.66 333.33 400.00 REV F 08/21/07 ...

Page 3

... Power supply, nominal 3.3V OUT 0.7V differential true clock output OUT 0.7V differential complement clock output Active high input for enabling output tri-state outputs, 1= enable outputs I/O Data pin for SMBus circuitry, 3.3V tolerant. IN Clock pin of SMBus circuitry, 5V tolerant. TM CPU, PCI-Express & SATA Clocks 3 DESCRIPTION ICS9FG107 REV F 08/21/07 ...

Page 4

... This pin requires a fixed precision resistor tied to OUT ground in order to establish the appropriate current. 475 ohms is the standard value. PWR Ground pin for the PLL core. PWR 3.3V power for the PLL core. TM CPU, PCI-Express & SATA Clocks 4 DESCRIPTION ICS9FG107 REV F 08/21/07 ...

Page 5

... ICS9FG107 Programmable FTG for Differential P4 General SMBus serial interface information for the ICS9FG107 How to Write: • Controller (host) sends a start bit. • Controller (host) sends the write address DC • ICS clock will acknowledge • Controller (host) sends the begining byte location = N • ...

Page 6

... Disable Enable Type Stop Low Enable RW Free-run Stop-able RW Free-run Stop-able RW Free-run Stop-able RW Free-run Stop-able RW Free-run Stop-able RW Free-run Stop-able RW Free-run Stop-able ICS9FG107 PWD Pin 27 Pin 5 Pin 44 Pin 7 Pin Pin 45 PWD PWD REV F 08/21/07 ...

Page 7

... On R RESERVED R RESERVED R Down Center Type Type RESERVED R RESERVED R RESERVED R RESERVED R RESERVED R RESERVED R RESERVED R RESERVED ICS9FG107 PWD Pin 27 Pin 5 Pin 44 Pin 7 Pin Pin 45 PWD PWD REV F 08/21/07 ...

Page 8

... Control Function BC7 BC6 Writing to this BC5 register will configure BC4 how many bytes will BC3 be read back, default BC2 bytes. BC1 BC0 TM CPU, PCI-Express & SATA Clocks 8 Type ICS9FG107 PWD REV F 08/21/07 ...

Page 9

... DIF outputs will be driven High within 15nS of DIF_Stop# de-assertion to a voltage greater than 200mV. DIF_Stop# DIF DIF# DIF Internal TM TM IDT /ICS Programmable FTG for Differential P4 TM CPU, PCI-Express & SATA Clocks Tdrive_DIF_Stop, 10nS >200mV TM CPU, PCI-Express & SATA Clocks 9 ICS9FG107 REV F 08/21/07 ...

Page 10

... VDD F TM CPU, PCI-Express & SATA Clocks 10 Units V V ° C °C °C V MIN TYP MAX UNITS NOTES 0 0.3 0 -200 250 200 1 1 ICS9FG107 MHz 1,2 kHz REV F 08/21/07 ...

Page 11

... ICS9FG107 REV F 08/21/07 NOTES 1,2 2 2,3 2 2,3 2 2,3 2 2,3 2 2,3 2 2,3 2 2,3 1,2 1,2 1,2 1,2 1,2 1,2 1 ...

Page 12

... Min Mean 52 53 Min Mean 2 23 -25 -5 -24 -2 -22 -2 -50 -29 -49 -30 TM CPU, PCI-Express & SATA Clocks 12 Max NOTES 35 1 Max - -32 1 -35 1 Max NOTES 52 1 Max ICS9FG107 REV F 08/21/07 ...

Page 13

... MIN TYP MAX UNITS Notes -300 0 300 ppm 69.8270 69.8413 69.8550 ns 39.9880 40.0000 40.0120 ns 2.4 V 0.4 V - 160 250 ps ICS9FG107 Notes 1 1,2 1 REV F 08/21/07 ...

Page 14

... Dimension or Value Unit Figure 2 min to 16 max inch 1 1.8 min to 14.4 max inch 1 Dimension or Value Unit Figure 0. max inch 2 0.225 min to 12.6 max inch 2 L4 L4’ PCI Ex Board Down Device REF_CLK Input L4 L4’ PCI Ex Add In Board REF_CLK Input ICS9FG107 REV F 08/21/07 ...

Page 15

... R1a L4’ L2’ R1b R2a R2b L3’ L3 Note 3.3 Volts R5a R5b Cc Cc R6a R6b TM CPU, PCI-Express & SATA Clocks 15 Figure 3. Note ICS874003i-02 input compatible Standard LVDS R4 Down Device REF_CLK Input PCIe Device REF_CLK Input ICS9FG107 REV F 08/21/07 ...

Page 16

... SEE VARIATIONS 10.03 10.68 7.40 7.60 e 0.635 BASIC h 0.38 0.64 L 0.50 1.02 SEE VARIATIONS  0° 8° VARIATIONS D mm. MIN MAX 15.75 16.00 ICS9FG107 In Inches MIN MAX .095 .110 .008 .016 .008 .0135 .005 .010 SEE VARIATIONS .395 .420 .291 .299 0.025 BASIC .015 .025 .020 .040 SEE VARIATIONS 0° 8° ...

Page 17

... BASIC E1 6.00 6.20 e 0.50 BASIC L 0.45 0.75 N SEE VARIATIONS a 0° 8° aaa -- 0.10 D mm. N MIN MAX 48 12.40 12.60 ICS9FG107 In Inches COMMON DIMENSIONS MIN MAX -- .047 .002 .006 .032 .041 .007 .011 .0035 .008 SEE VARIATIONS 0.319 BASIC .236 .244 0.020 BASIC .018 .030 SEE VARIATIONS 0° ...

Page 18

... ICS9FG107 Programmable FTG for Differential P4 Revision History Rev. Issue Date Description D 08/06/07 Updated Differential Output Skew Specifications E 08/08/07 Updated Differential Output Skew Specifications F 08/21/07 Updated Differential Output Skew Specifications TM TM CPU, PCI-Express & SATA Clocks Innovate with IDT and accelerate your future networks. Contact: www ...

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