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9LRS4903BKLF

Description
Clock Generators u0026 Support Products 32-pin CK505 Clock GEN Intel Systems
Categorysemiconductor    Analog mixed-signal IC   
File Size95KB,15 Pages
ManufacturerIDT (Integrated Device Technology, Inc.)
Websitehttp://www.idt.com/
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9LRS4903BKLF Overview

Clock Generators u0026 Support Products 32-pin CK505 Clock GEN Intel Systems

9LRS4903BKLF Parametric

Parameter NameAttribute value
Product CategoryClock Generators & Support Products
ManufacturerIDT (Integrated Device Technology, Inc.)
RoHSDetails
Package / CaseVFQFPN-32
PackagingTray
Height1 mm
Length5 mm
Moisture SensitiveYes
Factory Pack Quantity490
Width5 mm
DATASHEET
32-pin CK505 for Intel Systems
Recommended Application:
CK505 clock, 32-pin
Output Features:
1 - CPU differential low power push-pull pairs
1 - SRC differential low power push-pull pairs
1 - Selectable 120MHz or 100MHz CK_SSC_Disp low power
push-pull pair
1 - SATA/SRC selectable differential low power push-pull pair
1 - DOT differential low power push-pull pair
1 - REF, 14.318MHz
Key Specifications:
CPU outputs cycle-cycle jitter < 85ps
SRC output cycle-cycle jitter < 125ps
+/- 100ppm frequency accuracy on all outputs
SRC are PCIe Gen2 compliant
ICS9LRS4903
Features/Benefits:
Supports spread spectrum modulation, default is 0.5%
down spread
Uses external 14.318MHz crystal, external crystal load
caps are required for frequency tuning
Does not require external pass transistor for voltage
regulator
Integrated 33Ω series resistors on differential outputs,
Zo=50Ω
Table 1: CPU Frequency Select Table
Pin Configuration
REF14.318M/FSLC**
CKPWRGD/PD#_3.3
SEL_SATA_NS#
GNDXTAL
VDDXTAL
100.00
14.318 96.00
VDDREF14M
1. FS
L
C is a low-threshold input.Please see V
IL_FS
and V
IH_FS
specifications in
the Input/Supply/Common Output Parameters Table for correct values.
Also refer to the Test Clarification Table.
X1 1
32 31 30 29 28 27 26 25
24 CPUC0
23 CPUT0
22 GNDCPU
X2 2
SMBCLK_3.3 3
SEL_120M#
Pin# 21
Pulled Low
Pulled High
Pin# 10/11
120MHz
100MHz
SMBDAT_3.3 4
VDD96 5
DOT96T 6
DOT96C 7
GND96 8
GNDSSC
9
VDDCPU
21 SEL_120M#
20 VDDSRC
19 SRC2C
18 SRC2T
17 GNDSRC
GNDSATA
9LRS4903
CK_SSC_DISP_C
VDDSSC
SRC1T/SATA_NS_T
CK_SSC_DISP_T
VDDSATA
SEL_SATA_NS#
Pin# 31
0
1
Pin# 14/15
100MHz_nonSS
100MHz_SS
10 11 12 13 14 15 16
SRC1C/SATA_NS_C
** Internal Pull-Down Resistor
IDT
TM
/ICS
TM
PC MAIN CLOCK
GNDREF
FS
L
C
B0b7
0 (Default)
1
CPU
MHz
133.33
100.00
SRC
MHz
REF
MHz
DOT
MHz
1634—03/05/10
1

9LRS4903BKLF Related Products

9LRS4903BKLF 9LRS4903BKLFT
Description Clock Generators u0026 Support Products 32-pin CK505 Clock GEN Intel Systems Clock Generators u0026 Support Products 32-pin CK505 Clock GEN Intel Systems
Product Category Clock Generators & Support Products Clock Generators & Support Products
Manufacturer IDT (Integrated Device Technology, Inc.) IDT (Integrated Device Technology, Inc.)
RoHS Details Details
Package / Case VFQFPN-32 VFQFPN-32
Packaging Tray Reel
Height 1 mm 1 mm
Length 5 mm 5 mm
Moisture Sensitive Yes Yes
Factory Pack Quantity 490 2500
Width 5 mm 5 mm
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