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Numéro de référence | 9DB106 | ||
Description | Six Output Differential Buffer | ||
Fabricant | IDT | ||
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1 Page
Six Output Differential Buffer for PCIe Gen 2
DATASHEET
9DB106
Description
Features/Benefits
The 9DB106 zero-delay buffer supports PCIe Gen1 and Gen2
clocking requirements. The 9DB106 is driven by a differential SRC
output pair from an IDT CK410/CK505-compliant main clock
generator. It attenuates jitter on the input clock and has a selectable
PLL bandwidth to maximize performance in systems with or without
Spread-Spectrum clocking. An SMBus interface allows control of
the PLL bandwidth and bypass options, while 2 clock request
(CLKREQ#) pins make the 9DB106 suitable for Express Card
applications.
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•
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CLKREQ# pin for outputs 1 and 4/ supports Express Card
applications
PLL or bypass mode/PLL can dejitter incoming clock
Selectable PLL bandwidth/minimizes jitter peaking in
downstream PLL's
Spread Spectrum Compatible/tracks spreading input clock
for low EMI
SMBus Interface/unused outputs can be disabled
Recommended Applications
6 Output Differential Buffer for PCIe Gen 2
Output Features
• 6 - 0.7V current mode differential output pairs (HCSL)
Key Specifications
• Cycle-to-cycle jitter < 50ps
• Output-to-output skew < 50 ps
Functional Block Diagram
CLKREQ1#
CLKREQ4#
CLK_INT
C LK_INC
PLL_BW
SMBDAT
SMBCLK
SPREAD
COMPATIBLE
PLL
CONTROL
LOGIC
PCIEX1
PCIEX4
PCIEX(0,2,3,5)
IREF
IDT® Six Output Differential Buffer for PCIe Gen 2
1
9DB106 REV K 04/20/11
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Pages | Pages 14 | ||
Télécharger | [ 9DB106 ] |
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