ics9fg1201h Integrated Device Technology, ics9fg1201h Datasheet

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ics9fg1201h

Manufacturer Part Number
ics9fg1201h
Description
Frequency Generator For Cpu, Pcie Gen1 & Fully Buffered Dimm Clocks
Manufacturer
Integrated Device Technology
Datasheet

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ics9fg1201hFLF
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IDT
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ics9fg1201hGLFT
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IDT
Quantity:
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Frequency Generator for CPU, PCIe Gen1* & Fully Buffered
DIMM Clocks
Description
ICS9FG1201 follows the Intel DB1200G Differential Buffer
Specification. This buffer provides 12 output clocks for CPU Host
Bus, PCI Express, or Fully Buffered DIMM applications. The outputs
are configured with two groups. Both groups (DIF 9:0) and (DIF
11:10) can be equal to or have a gear ratio to the input clock. A
differential CPU clock from a CK410 or CK410B main clock generator,
such as the ICS954101 or ICS932S401, drives the ICS9FG1201.
ICS9FG1201 can provide outputs up to 400MHz.
Key Specifications
Funtional Block Diagram
IDT
TM
DIF output cycle-to-cycle jitter < 50ps
DIF output-to-output skew < 50ps within a group
DIF output-to-output skew < 100ns across all outputs
56-pin SSOP/TSSOP package
Available in RoHS compliant packaging
/ICS
TM
Frequency Generator for CPU, PCIe Gen1* & Fully Buffered DIMM Clocks
HIGH_BW#
FS_A_410
VTT_PWRGD#/PD
SMB_A0
SMB_A1
SMB_A2_PLLBYP#
SMBDAT
SMBCLK
CLK_IN
CLK_IN#
OE#
OE(9:0)#
10
CONTROL
LOGIC
COMPATIBLE
COMPATIBLE
SPREAD
SPREAD
PLL
PLL
1
LOGIC
LOGIC
SHIFT
SHIFT
Features/Benefits
GEAR
GEAR
Power up default is all outputs in 1:1 mode
DIF_(9:0) can be “gear-shifted” from the input CPU Host
Clock
DIF_(11:10) can be “gear-shifted” from the input CPU Host
Clock
Spread spectrum compatible
Supports output clock frequencies up to 400 MHz
8 Selectable SMBus addresses
SMBus address determines PLL or Bypass mode
LOGIC
LOGIC
STOP
STOP
10
2
IREF
DIF(11:10)
DIF(9:0)
ICS9FG1201H
ICS9FG1201H 10/22/07
DATASHEET

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ics9fg1201h Summary of contents

Page 1

... DIF_(9:0) can be “gear-shifted” from the input CPU Host Clock DIF_(11:10) can be “gear-shifted” from the input CPU Host Clock Spread spectrum compatible Supports output clock frequencies up to 400 MHz 8 Selectable SMBus addresses SMBus address determines PLL or Bypass mode 2 STOP DIF(11:10) LOGIC 10 STOP DIF(9:0) LOGIC IREF DATASHEET ICS9FG1201H 10/22/07 ...

Page 2

... DIF_5 DIF_6# OE5 OE6# SMB_A1 27 30 SMB_A2_PLLBYP# SMBDAT 28 29 SMBCLK 56-pin SSOP & TSSOP DIF_(9:0) Output DIF_(11:10) Output MHz MHz 100.00 100.00 133.33 133.33 166.66 166.66 RESERVED 200.00 200.00 266.66 266.66 333.33 333.33 400.00 400.00 and V IL_FS IH_FS 2 ICS9FG1201H 10/22/07 ...

Page 3

... PWR Power supply, nominal 3.3V PWR Ground pin. OUT 0.7V differential true clock output OUT 0.7V differential complement clock output Active low input for enabling DIF pair tri-state outputs enable outputs IN SMBus address bit 1 I/O Data pin of SMBUS circuitry, 5V tolerant 3 ICS9FG1201H 10/22/07 ...

Page 4

... This pin establishes the reference current for the differential current- mode output pairs. 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. 4 ICS9FG1201H 10/22/07 ...

Page 5

... 166.67 66.7 69.4 83.3 100.0 104.2 111.1 133.3 138.9 166.7 200.0 208.3 222.2 277.8 333.3 ICS9FG1201H 10/22/07 ...

Page 6

... SMB_A(2:0) = 011 SMB Adr: D6 9FG1201 (DB1200G) SMB_A(2:0) = 100 SMB Adr: D8 9FG1201 (DB1200G) SMB_A(2:0) = 101 SMB Adr: DA 9FG1201 (DB1200G) SMB_A(2:0) = 110 SMB Adr: DC 9FG1201 (DB1200G) SMB_A(2:0) = 111 SMB Adr: DE 9FG1201 (DB1200G) 6 SMB Adr: D2 954101 OR 932S401 (CK410/410B) SMB Adr 9DB104/108 (DB400/800) ICS9FG1201H 10/22/07 ...

Page 7

... ICS9FG1201H Frequency Generator for CPU, PCIe Gen1* & Fully Buffered DIMM Clocks General SMBus serial interface information for the ICS9FG1201H How to Write: • Controller (host) sends a start bit. • Controller (host) sends the write address D0 • ICS clock will acknowledge • Controller (host) sends the begining byte location = N • ...

Page 8

... Type High BW Low BW RW Bypass PLL RW Hi-Z Enable RW Hi-Z Enable RW Hi-Z Enable RW Hi-Z Enable Type Readback R Readback R Readback R Readback R Readback R Readback R Readback R Readback ICS9FG1201H 10/22/07 PWD Latch PWD PWD PWD ...

Page 9

... Type Reserved RW Reserved RW Reserved RW Reserved RW Reserved RW Reserved RW Reserved RW Reserved Type ICS9FG1201H 10/22/07 PWD PWD PWD PWD ...

Page 10

... M Divider Programming bits 10 Type See 9FG1201H 1:1 PLL RW Programming Table RW Type 0 1 Type Disable Enable Type See 9FG1201H M/N RW programming Table ICS9FG1201H 10/22/07 PWD Latch PWD PWD PWD X X ...

Page 11

... RESERVED Control Function Type RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED PWD See 9FG1201H M/N X programming Table PWD Table PWD PWD ICS9FG1201H 10/22/07 ...

Page 12

... RESERVED RESERVED RESERVED RW See 1:1 Output Divider RW 1:1 Output Divider PWD PWD See 9FG1201H M/N X programming Table PWD See 9FG1201H M/N X programming Table PWD Table X X ICS9FG1201H 10/22/07 ...

Page 13

... ICS ONLY TEST ICS ONLY TEST ICS ONLY TEST ICS ONLY TEST ICS ONLY TEST ICS ONLY TEST ICS ONLY TEST PWD Test Result PWD RW Reserved RW Reserved RW Reserved RW Reserved RW Reserved RW Reserved RW Reserved RW Reserved ICS9FG1201H 10/22/ ...

Page 14

... 0 0.3 0. 400 100 400 MHz 1 kHz 300 5 1000 ns 300 ns ICS9FG1201H 10/22/ ...

Page 15

... ICS9FG1201H 10/22/07 1 1 1,2 1,2 1,2 1,2 1,2 1,2 1 1,4,5 1,4 ...

Page 16

... Bypass and PLL mode - all outputs at same gear) (HIGH_BW (HIGH_BW (HIGH_BW (HIGH_BW PCIe Gen 1 phase jitter (1 MHz) FBD phase jitter (11-33 MHz) 16 Min Typ Max Units Notes 1,2,4,5,6, -500 500 ps 10 1,2,3,5, 2.5 4 1,2, 1,2,10 100 ps 1,2,3,10 0 2 MHz 10,11 0.7 1.4 MHz 10,11 108 ps 1,7,8, rms 1,7,8,10 ICS9FG1201H 10/22/07 ...

Page 17

... 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 ICS9FG1201H 10/22/07 ...

Page 18

... R1a L4’ L2’ R1b R2a R2b L3’ L3 Note 3.3 Volts R5a R5b Cc Cc R6a R6b 18 Figure 3. Note ICS874003i-02 input compatible Standard LVDS R4 Down Device REF_CLK Input PCIe Device REF_CLK Input ICS9FG1201H 10/22/07 ...

Page 19

... SEE VARIATIONS SEE VARIATIONS 10.03 10.68 .395 7.40 7.60 .291 0.635 BASIC 0.025 BASIC 0.38 0.64 .015 0.50 1.02 .020 SEE VARIATIONS SEE VARIATIONS 0° 8° 0° D mm. D (inch) MIN MAX MIN 18.31 18.55 .720 ICS9FG1201H 10/22/07 MAX .110 .016 .0135 .010 .420 .299 .025 .040 8° MAX .730 ...

Page 20

... E 8.10 BASIC E1 6.00 6.20 e 0.50 BASIC L 0.45 0.75 N SEE VARIATIONS SEE VARIATIONS . 0° 8° aaa -- 0.10 D mm. N MIN MAX 56 13.90 14.10 ICS9FG1201H 10/22/07 In Inches MIN MAX -- .047 .002 .006 .032 .041 .007 .011 .0035 .008 0.319 BASIC .236 .244 0.020 BASIC .018 .030 0° 8° -- .004 D (inch) MIN MAX ...

Page 21

... ICS9FG1201H Frequency Generator for CPU, PCIe Gen1* & Fully Buffered DIMM Clocks Revision History Rev. Issue Date Description A 10/22/07 Release to Final. TM Innovate with IDT and accelerate your future networks. Contact: www.IDT.com For Sales For Tech Support 800-345-7015 408-284-6578 408-284-8200 pcclockhelp@idt.com Fax: 408-284-2775 ...

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