ICS9FG108DFILF IDT, Integrated Device Technology Inc, ICS9FG108DFILF Datasheet

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ICS9FG108DFILF

Manufacturer Part Number
ICS9FG108DFILF
Description
IC FREQ TIMING GENERATOR 48-SSOP
Manufacturer
IDT, Integrated Device Technology Inc
Type
Frequency Generatorr
Datasheet
1.ICS9FG108DFLFT.pdf (18 pages)

Specifications of ICS9FG108DFILF

Input
Clock, Crystal
Output
Differential
Frequency - Max
400MHz
Voltage - Supply
3.135 V ~ 3.465 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
48-SSOP
Frequency-max
400MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
9FG108DFILF
Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA
Description
ICS9FG108D is a Frequency Timing Generator that provides 8
differential output pairs that are compliant to the Intel CK410
specification.
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 50
ps and output-to-output skew of less than 65 ps. ICS9FG108D also
provides a copy of the reference clock. Frequency selection can be
accomplished via strap pins or SMBus control.
Key Specifications
•
•
•
•
Functional Block Diagram
IDT
TM
Output cycle-to-cycle jitter < 50 ps
Output to output skew < 65 ps
+/-300 ppm frequency accuracy on output clocks
+/-50 ppm at any frequency with spread off
Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA
It also provides support for PCI-Express, next
XIN/CLKIN
X2
OE(7:0)
SPREAD
SEL14M_25M#
DIF_STOP#
FS(2:0)
SDATA
SCLK
CONTROL
OSC
LOGIC
PROGRAMMABLE
SPREAD PLL
1
Features/Benefits
•
•
•
•
•
•
Generates common frequencies from 14.318 MHz or
25 MHz
Crystal or reference input
8 - 0.7V current-mode differential output pairs
Supports Serial-ATA at 100 MHz
Two spread spectrum modes: 0 to -0.5 down spread
and +/-0.25% center spread
Unused inputs may be disabled in either driven or Hi-Z
state for power management.
LOGIC
STOP
8
IREF
DIF(7:0)
ICS9FG108D
DATASHEET
1542E 12/16/10

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ICS9FG108DFILF Summary of contents

Page 1

Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA Description ICS9FG108D is a Frequency Timing Generator that provides 8 differential output pairs that are compliant to the Intel CK410 specification. It also provides support for PCI-Express, next generation ...

Page 2

ICS9FG108D Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA Pin Configuration XIN/CLKIN VDD 3 GND 4 REFOUT 5 vFS2 6 vOE_7 7 DIF_7 8 DIF_7# 9 VDD 10 DIF_6 11 DIF_6# 12 ^OE_6 13 ...

Page 3

ICS9FG108D Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA Pin Description PIN # PIN PIN TYPE 1 XIN /C LKIN PWR PWR 5 ...

Page 4

ICS9FG108D Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA Pin Description (continued) PIN # PIN NAME PIN TYPE 25 DIF_STOP vSPREAD IN 27 ^SEL14M_25M vOE_3 IN 29 DIF_3# OUT 30 DIF_3 OUT 31 ...

Page 5

ICS9FG108D Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA Absolute Max Symbol Parameter VDD_A 3.3V Core Supply Voltage VDD 3.3V Logic Supply Voltage Ts Storage Temperature Tambient Ambient Operating Temp•(Commerical Grade) Tambient Ambient Operating Temp•(Industrial Grade) Tcase ...

Page 6

ICS9FG108D Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA Electrical Characteristics - Input/Supply/Common Output Parameters T = Tambient, Supply Voltage V = 3.3 V +/- PARAMETER SYMBOL Input High Voltage V IH Input Low Voltage ...

Page 7

ICS9FG108D Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA Electrical Characteristics - DIF 0.7V Current Mode Differential Pair T = Tambient, Supply Voltage VDD = 3.3 V +/-5 =49.9 Ω 475 Ω ...

Page 8

ICS9FG108D Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA General SMBus serial interface information for the ICS9FG108D How to Write: • Controller (host) sends a start bit. • Controller (host) sends the write address DC • ICS ...

Page 9

ICS9FG108D Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA SMBus Table: Device Control Register, READ/WRITE ADDRESS (DC/DD) Byte 0 Pin # Name 27 Bit 7 5 Bit 6 Bit 5 44 Bit Bit 3 ...

Page 10

ICS9FG108D Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA SMBus Table: Frequency Select Readback Register Byte 3 Pin # Name SEL14M_25M# 27 Bit 7 (FS3) 6 Bit 6 FS2 44 Bit 5 FS1 45 Bit 4 FS0 ...

Page 11

ICS9FG108D Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA SMBus Table: Byte Count Register Byte 6 Pin # Name Bit 7 - BC7 Bit 6 - BC6 Bit 5 - BC5 Bit 4 - BC4 Bit 3 ...

Page 12

ICS9FG108D Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA SMBus Table: PLL Frequency Control Register Byte 10 Pin # Name - PLL N Div8 Bit 7 - PLL N Div9 Bit 6 - PLL M Div5 Bit ...

Page 13

ICS9FG108D Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA DIF_STOP# - Assertion (transition from '1' to '0') Asserting DIF_STOP# pin stops all DIF outputs that are set to be stoppable after their next transition. When the SMBus ...

Page 14

ICS9FG108D Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA Common Recommendations for Differential Routing L1 length, route as non-coupled 50ohm trace L2 length, route as non-coupled 50ohm trace L3 length, route as non-coupled 50ohm trace Rs Rt ...

Page 15

ICS9FG108D Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA Alternative Termination for LVDS and other Common Differential Signals (figure 3) Vdiff Vp-p Vcm 0.45v 0.22v 1.08 0.58 0.28 0.6 0.80 0.40 0.6 0.60 0.3 1.2 R1a = ...

Page 16

ICS9FG108D Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA 48-pin SSOP Package Outline and Dimensions INDEX INDEX AREA AREA 45° SEATING SEATING b PLANE PLANE .10 ...

Page 17

ICS9FG108D Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA 48-pin TSSOP Package Outline and Dimensions INDEX INDEX AREA AREA aaa Ordering Information Part / ...

Page 18

ICS9FG108D Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA Revision History Rev. Issue Date Description 0.1 12/18/2008 New datasheet. 1. Updated phase jitter tables. 2, Updated input frequency ranges. There are now separate ranges for 14.318M input ...

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