ICS9FG1901EKLFT IDT, Integrated Device Technology Inc, ICS9FG1901EKLFT Datasheet

no-image

ICS9FG1901EKLFT

Manufacturer Part Number
ICS9FG1901EKLFT
Description
IC FREQUENCY GENERATOR 72-VFQFPN
Manufacturer
IDT, Integrated Device Technology Inc
Type
Frequency Generatorr
Datasheet

Specifications of ICS9FG1901EKLFT

Input
Clock
Output
Differential
Frequency - Max
400MHz
Voltage - Supply
3.135 V ~ 3.465 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
72-VFQFN, 72-VFQFPN
Frequency-max
400MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
9FG1901EKLFT

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ICS9FG1901EKLFT
Manufacturer:
INTEL
Quantity:
1
Part Number:
ICS9FG1901EKLFT
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
Part Number:
ICS9FG1901EKLFT
Manufacturer:
IDT
Quantity:
20 000
Frequency Generator for P4
Recommended Application:
DB1900G: CPU Host Bus, PCI Express and Fully-Buffered
DIMM clocking
Features:
Key Specifications:
0962E—01/02/07
Power up default is all outputs in 1:1 mode
DIF_(16:0) can be “gear-shifted” from the input CPU
Host Clock
DIF_(18:17) 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
VDDA controlled power down mode
DIF output cycle-to-cycle jitter < 50ps
DIF (0:18) output-to-output skew < 225ps
DIF (0:16) output-to-output skew < 100ps
Integrated
Circuit
Systems, Inc.
HIGH_BW# 4
OE_01234# 18
VDDA/PD# 3
FS_A_410 5
DIF_0# 7
DIF_1# 9
DIF_2# 13
DIF_3# 15
DIF_4# 17
GNDA 2
DIF_0 6
DIF_1 8
DIF_2 12
DIF_3 14
DIF_4 16
IREF 1
GND 10
VDD 11
72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55
19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
™ ™ ™ ™ ™
CPU, PCI Express
Pin Configuration
72-pin MLF
Other names and brands may be claimed as the property of others.
ICS9FG1901
Functionality at Power Up (PLL Mode)
Power Down Functionality
1. FS_A_410 is a low-threshold input. Please see the V
specifications in the Input/Supply/Common Output Parameters Table for
correct values.
Functionality Note
It is recommended that Byte 2, bit 6 be toggled from 1 to 0
and back to 1, the first time VDDA is applied. This ensures
proper initialization of the device.
3.3V (NOM)
FS_A_410
VDDA/PD# CLK_IN/CLK_IN# DIF
GND
1
0
™ ™ ™ ™ ™
1
INPUTS
& Fully Buffered DIMM Clocks
200<= CLK_IN <= 400
100 <= CLK_IN < 200
CLK_IN (CPU FSB)
Running
X
MHz
54 OE14#
53 DIF_13#
52 DIF_13
51 OE13#
50 DIF_12#
49 DIF_12
48 OE12#
47 VDD
46 GND
45 DIF_11#
44 DIF_11
43 OE11#
42 DIF_10#
41 DIF_10
40 OE10#
39 DIF_9#
38 DIF_9
37 OE9#
OUTPUTS
Running
Hi-Z
ICS9FG1901
DIF#
DIF_(18:0)
IL_FS
CLK_IN
CLK_IN
MHz
PLL State
and V
OFF
ON
IH_FS

Related parts for ICS9FG1901EKLFT

ICS9FG1901EKLFT Summary of contents

Page 1

Integrated Circuit Systems, Inc. Frequency Generator for P4 Recommended Application: DB1900G: CPU Host Bus, PCI Express and Fully-Buffered DIMM clocking Features: • Power up default is all outputs in 1:1 mode • DIF_(16:0) can be “gear-shifted” from the input CPU ...

Page 2

Integrated Circuit Systems, Inc. Pin Description PIN # PIN NAME PIN TYPE 1 IREF OUT 2 GNDA PWR 3 VDDA/PD# PWR 4 HIGH_BW# 5 FS_A_410 6 DIF_0 OUT 7 DIF_0# OUT 8 DIF_1 OUT 9 DIF_1# OUT 10 GND PWR ...

Page 3

Integrated Circuit Systems, Inc. Pin Description (Continued) PIN # PIN NAME PIN TYPE 37 OE9 DIF_9 OUT 39 DIF_9# OUT 40 OE10 DIF_10 OUT 42 DIF_10# OUT 43 OE11 DIF_11 OUT 45 DIF_11# OUT ...

Page 4

Integrated Circuit Systems, Inc. General Description The ICS9FG1901 follows the Intel DB1900G Differential Buffer Specification. This buffer provides 19 output clocks for CPU Host Bus, PCI-Express, or Fully Buffered DIMM applications. The outputs are configured with two groups. Both groups, ...

Page 5

Integrated Circuit Systems, Inc. ICS9FG1901 Programmable Gear Ratios SMBus Byte 0 Input Output (m) ( ...

Page 6

Integrated Circuit Systems, Inc. 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 ESD prot human body model Electrical Characteristics - ...

Page 7

Integrated Circuit Systems, Inc. Electrical Characteristics - DIF 0.7V Current Mode Differential Pair 70° 3.3 V +/-5%; C =2pF PARAMETER SYMBOL Current Source Output Impedance Voltage High Voltage Low Max ...

Page 8

Integrated Circuit Systems, Inc. PLL Bandwidth and Peaking Parameter PLL Jitter Peaking j peak-hibw PLL Jitter Peaking j peak-lobw PLL Bandwidth pll PLL Bandwidth pll Output phase jitter impact – PCIe* Gen1 Output phase jitter impact – FBD NOTES: 1. ...

Page 9

Integrated Circuit Systems, Inc. SMB_A(2:0) = 000 SMB Adr: D0 (DB1900G) SMB_A(2:0) = 001 SMB Adr: D2 (DB1900G) SMB_A(2:0) = 010 SMB Adr: D4 (DB1900G) SMB_A(2:0) = 011 SMB Adr: D6 (DB1900G) SMB_A(2:0) = 100 SMB Adr: D8 (DB1900G) SMB_A(2:0) ...

Page 10

Integrated Circuit Systems, Inc. SMBusTable: FSB Frequency Select Register Byte 0 Pin # Name DIF(16:0) GRSEL_17 Bit 7 DIF(18:17) GRSEL_2 Bit 6 Bit 5 - Bit 4 - FSBG_3 Bit 3 - FSBG_2 Bit 2 - FSBG_1 Bit 1 - ...

Page 11

Integrated Circuit Systems, Inc. SMBusTable: Output Enable Readback Register Byte 4 Pin # Name 69 Bit 7 60 Bit 6 Bit Bit 4 51 Bit 3 48 Bit 2 43 Bit 1 40 Bit 0 SMBusTable: Vendor ...

Page 12

Integrated Circuit Systems, Inc. SMBusTable: Control Pin Readback Register Byte 8 Pin # Name 5 Bit 7 Bit 6 Bit 5 DIF_18 Bit 4 DIF_17 Bit 3 DIF_16 Bit 2 DIF_15 Bit 1 DIF_14 Bit 0 SMBusTable: Reserved Register Byte ...

Page 13

Integrated Circuit Systems, Inc. SMBus Table: Gearing PLL Frequency Control Register Byte 12 Pin # Name - Gearing PLL N Div7 Bit 7 - Gearing PLL N Div6 Bit 6 Gearing PLL N Div5 Bit Gearing PLL ...

Page 14

Integrated Circuit Systems, Inc. SMBusTable: Reserved Register Byte 16 Pin # Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 SMBus Table: 1:1 PLL Frequency Control Register Byte 17 Pin # Name ...

Page 15

Integrated Circuit Systems, Inc. SMBusTable: Reserved Register Byte 20 Pin # Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 SMBusTable: Test Byte Register Byte 21 Test ` Bit 7 Bit 6 ...

Page 16

Integrated Circuit Systems, Inc. DIMENSIONS SYMBOL MIN 0.18 e Ordering Information ICS9FG1901yKLF-T Example: ICS XXXX 0962E—01/02/07 THERMALLY ENHANCED, VERY THIN, FINE PITCH QUAD FLAT / NO LEAD PLASTIC PACKAGE ...

Page 17

Integrated Circuit Systems, Inc. Revision History Rev. Issue Date Description 1. Added Symbol "A" to Dimensions table. A 4/25/2005 2. Preliminary Release. B 12/19/2005 1. Rearranged page 1 to enlarge Pin Configuration 1. Updated TBD to actual values. 2. Added ...

Related keywords