ICS9FG104CGLFT IDT, Integrated Device Technology Inc, ICS9FG104CGLFT Datasheet

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ICS9FG104CGLFT

Manufacturer Part Number
ICS9FG104CGLFT
Description
IC FREQ TIMING GENERATOR 28TSSOP
Manufacturer
IDT, Integrated Device Technology Inc
Datasheet

Specifications of ICS9FG104CGLFT

Input
*
Output
*
Frequency - Max
*
Voltage - Supply
*
Operating Temperature
*
Mounting Type
Surface Mount
Package / Case
28-TSSOP
Frequency-max
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
800-1918-2

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ICS9FG104CGLFT
Manufacturer:
ICS
Quantity:
20 000
Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA
Description
The ICS9FG104 is a Frequency Timing Generator that provides 4
differential output pairs that are compliant to the Intel CK410
specification. It also provides support for PCI-Express 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 35 ps. The ICS9FG104 also provides a copy
of the reference clock. Frequency selection can be accomplished via
strap pins or SMBus control.
Key Specifications
Funtional Block Diagram
IDT
TM
Output cycle-to-cycle jitter < 50 ps
Output to output skew < 35 ps
+/-300 ppm frequency accuracy on output clocks
+/- 150 ppm frequency accuracy @ 100 MHz outputs
28-pin SSOP/TSSOP package
Available in RoHS compliant packaging
/ICS
TM
Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA
XIN/CLKIN
X2
SPREAD
SEL14M_25M#
DIF_STOP#
FS(2:0)
SDATA
SCLK
2
CONTROL
OSC
LOGIC
PROGRAMMABLE
SPREAD PLL
1
Features/Benefits
Generates common frequencies from 14.318 MHz or
25 MHz
Crystal or reference input
4 - 0.7V current-mode differential output pairs
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.
M/N Programming
LOGIC
STOP
4
IREF
DIF(3:0)
ICS9FG104
DATASHEET
0839O—12/03/08

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ICS9FG104CGLFT Summary of contents

Page 1

Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA Description The ICS9FG104 is a Frequency Timing Generator that provides 4 differential output pairs that are compliant to the Intel CK410 specification. It also provides support for PCI-Express and ...

Page 2

ICS9FG104 Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA Pin Configuration XIN/CLKIN VDD 3 GND 4 REFOUT 5 **FS2 6 DIF_3 7 DIF_3# 8 VDD 9 GND 10 DIF_2 11 DIF_2# 12 SDATA 13 ...

Page 3

ICS9FG104 Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA Pin Description PIN # PIN NAME 1 XIN/CLKIN VDD 4 GND 5 REFOUT 6 **FS2 7 DIF_3 8 DIF_3# 9 VDD 10 GND 11 DIF_2 ...

Page 4

ICS9FG104 Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA General SMBus serial interface information for the ICS9FG104 How to Write: • Controller (host) sends a start bit. • Controller (host) sends the write address DC • ICS ...

Page 5

ICS9FG104 Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA SMBus Table: Device Control Register, READ/WRITE ADDRESS (DC/DD) Byte 0 Pin # Name 17 Bit 7 6 Bit 6 24 Bit 5 25 Bit 4 16 Bit 3 ...

Page 6

ICS9FG104 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) FS2 6 Bit 6 44 FS1 Bit 5 45 FS0 Bit 4 ...

Page 7

ICS9FG104 Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA SMBus Table: Reserved Register Byte 7 Pin # Name - Bit 7 - Bit 6 - Bit 5 - Bit 4 - Bit 3 - Bit 2 - ...

Page 8

ICS9FG104 Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA SMBus Table: PLL Frequency Control Register Byte 11 Pin # Name - PLL N Div7 Bit 7 - PLL N Div6 Bit 6 - PLL N Div5 Bit ...

Page 9

ICS9FG104 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 10

ICS9FG104 Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA Absolute Max Symbol Parameter VDD_A 3.3V Core Supply Voltage VDD_In 3.3V Logic Input Supply Voltage Ts Storage Temperature Tambient Ambient Operating Temp Tcase Case Temperature Input ESD protection ...

Page 11

ICS9FG104 Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA Electrical Characteristics - DIF 0.7V Current Mode Differential Pair 85° 3.3 V +/-5 PARAMETER SYMBOL Output Impedance Voltage High ...

Page 12

ICS9FG104 Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA Electrical Characteristics - REF-14.318/25 MHz 85° 3.3 V +/-5 PARAMETER SYMBOL Long Accuracy ppm Clock period T Output High ...

Page 13

ICS9FG104 Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA Common Recommendations for Differential Routing L1 length, Route as non-coupled 50 ohm trace. L2 length, Route as non-coupled 50 ohm trace. L3 length, Route as non-coupled 50 ohm ...

Page 14

ICS9FG104 Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA Alternative termination for LVDS and other common differential signals. Vdiff Vp-p Vcm 0.45 v 0.22v 1.08 0.58 0.6 0.28 0.80 0.40 0.6 0.60 0.3 1.2 R1a = R1b ...

Page 15

ICS9FG104 Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA INDEX INDEX AREA AREA 45° Ordering Information 9FG104yFLFT Example: XXXX Designation for ...

Page 16

ICS9FG104 Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA N E1 INDEX AREA Ordering Information 9FG104yGLFT Example: XXXX Designation for tape and reel packaging RoHS Compliant ...

Page 17

ICS9FG104 Frequency Generator for CPU, QPI, FBD, PCIe Gen 2 & SATA Revision History Rev. Issue Date Description 1. Updated SMBus Byte 3 bit and 3. D 6/2/2005 2. Updated LF Ordering Information to RoHS Compliant. E ...

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