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9FGV0831_17 Datasheet, PDF (1/17 Pages) Integrated Device Technology – 8-Output Very Low-Power PCIe Gen 1-2-3-4 Clock Generator | |||
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8-Output Very Low-Power PCIe Gen 1-2-3-4
Clock Generator
9FGV0831
DATASHEET
Description
The 9FGV0831 is a member of IDT's SOC-friendly 1.8V very
low-power PCIe clock family. The device has 8 output
enables for clock management, 2 different spread spectrum
levels in addition to spread off, and 2 selectable SMBus
addresses.
Recommended Application
PCIe Gen1â4 clock generation for Riser Cards, Storage,
Networking, JBOD, Communications, Access Points
Output Features
⢠8 100MHz Low-Power (LP) HCSL DIF pair
⢠1 1.8V LVCMOS REF output with Wake-On-LAN (WOL)
support
Key Specifications
⢠DIF cycle-to-cycle jitter <50ps
⢠DIF output-to-output skew <50ps
⢠DIF phase jitter is PCIe Gen1-2-3-4 compliant
⢠REF phase jitter is <1.5ps RMS
Block Diagram
Features/Benefits
⢠LP-HCSL outputs; saves 16 resistors compared to
standard PCIe devices
⢠62mW typical power consumption; reduced thermal
concerns
⢠Outputs can optionally be supplied from any voltage
between 1.05 and 1.8V; maximum power savings
⢠OE# pins; support DIF power management
⢠Programmable slew rate for each output; allows tuning for
various line lengths
⢠Programmable output amplitude; allows tuning for various
application environments
⢠DIF outputs blocked until PLL is locked; clean system
start-up
⢠Selectable 0%, -0.25% or -0.5% spread on DIF outputs;
reduces EMI
⢠External 25MHz crystal; supports tight ppm with 0 ppm
synthesis error
⢠Configuration can be accomplished with strapping pins;
SMBus interface not required for device control
⢠3.3V tolerant SMBus interface works with legacy controllers
⢠Selectable SMBus addresses; multiple devices can easily
share an SMBus segment
⢠Space saving 6 x 6 mm 48-VFQFPN; minimal board space
vOE(7:0)#
XIN/CLKIN_25
X2
OSC
vSADR
vSS_EN_tri
^CKPWRGD_PD#
SDATA_3.3
SCLK_3.3
CONTROL
LOGIC
SS Capable PLL
REF1.8
DIF7
DIF6
DIF5
DIF4
DIF3
DIF2
DIF1
DIF0
9FGV0831 JUNE 26, 2017
1
©2017 Integrated Device Technology, Inc.
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