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9DBL0641 Datasheet, PDF (1/19 Pages) Integrated Device Technology – 6-output 3.3V PCIe Zero-Delay Buffer | |||
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6-output 3.3V PCIe Zero-Delay
Buffer
9DBL0641 / 9DBL0651
DATASHEET
Description
The 9DBL0641 / 9DBL0651 devices are 3.3V members of
IDT's Full-Featured PCIe family. The 9DBL06 supports PCIe
Gen1-4 Common Clocked (CC) and PCIe Separate
Reference Independent Spread (SRIS) systems. It offers a
choice of integrated output terminations providing direct
connection to 85⦠or 100⦠transmission lines. The
9DBL06P1 can be factory programmed with a user-defined
power up default SMBus configuration.
Recommended Application
PCIe Gen1-4 clock distribution for Riser Cards, Storage,
Networking, JBOD, Communications, Access Points
Output Features
⢠6 â 1-200 MHz Low-Power (LP) HCSL DIF pairs
⢠9DBL0641 default ZOUT = 100ï
⢠9DBL0651 default ZOUT = 85ï
⢠9DBL06P1 factory programmable defaults
Key Specifications
⢠PCIe Gen1-2-3-4 CC compliant in ZDB mode
⢠PCIe Gen2 SRIS compliant in ZDB mode
⢠Supports PCIe Gen2-3 SRIS in fan-out mode
⢠DIF cycle-to-cycle jitter <50ps
⢠DIF output-to-output skew < 50ps
⢠Bypass mode additive phase jitter is 0 ps typical rms for
PCIe
⢠Bypass mode additive phase jitter 160fs rms typ. @
156.25M (1.5M to 10M)
Block Diagram
Features/Benefits
⢠Direct connection to 100ï (xx41) or 85ï (xx51)
transmission lines; saves 24 resistors compared to
standard PCIe devices
⢠149mW typical power consumption (PLL mode@3.3V);
eliminates thermal concerns
⢠VDDIO allows 30% power savings at optional 1.05V;
maximum power savings
⢠SMBus-selectable features allows optimization to customer
requirements:
â control input polarity
â control input pull up/downs
â slew rate for each output
â differential output amplitude
â output impedance for each output
â 50, 100, 125MHz operating frequency
⢠Customer defined SMBus power up default can be
programmed into P1 device; allows exact optimization to
customer requirements
⢠OE# pins; support DIF power management
⢠HCSL-compatible differential input; can be driven by
common clock sources
⢠Spread Spectrum tolerant; allows reduction of EMI
⢠Pin/SMBus selectable PLL bandwidth and PLL Bypass;
minimize phase jitter for each application
⢠Outputs blocked until PLL is locked; clean system start-up
⢠Device contains default configuration; SMBus interface not
required for device operation
⢠Three selectable SMBus addresses; multiple devices can
easily share an SMBus segment
⢠Space saving 40-pin 5x5mm VFQFPN; minimal board
space
Note: Default resistors are internal on xx41/xx51 devices. P1 devices have programmable default impedances on an output-by-output basis.
9DBL0641 / 9DBL0651 FEBRUARY 8, 2017
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©2017 Integrated Device Technology, Inc.
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