9DBV0841 Datasheet, PDF (1/16 Pages) Integrated Circuit Systems – HCSL compatible differential input

8-OUTPUT VERY LOW POWER PCIE GEN1-2-3 BUFFER
DATASHEET
9DBV0841
Description
The 9DBV0841 is an 8-output very low power buffer for
100MHz PCIe Gen1, Gen2 and Gen3 applications with
integrated output terminations providing Zo=100. It can
also be used for 50M or 125M Ethernet Applications via
software frequency selection. The device has 8 output
enables for clock management, and 3 selectable SMBus
addresses.
Recommended Application
PCIe Gen1-2-3 Buffer
Output Features
• 8 - 0.7V low-power HCSL-compatible (LP-HCSL) DIF
pairs w/Z_O=100
Key Specifications
• DIF cycle-to-cycle jitter <50ps
• DIF output-to-output skew <50ps
• DIF phase jitter is PCIe Gen1-2-3 compliant
• Very low additive phase jitter in bypass mode
Block Diagram
Features/Benefits
• Integrated terminations provide 100 differential Zo;
reduced component count and board space
• 1.8V operation; minimal power consumption
• Outputs can optionally be supplied from any voltage
between 1.05 and 1.8V; maximum power savings
• OE# pins; support DIF power management
• HCSL compatible differential input; can be driven by
common clock sources
• LP-HCSL differential clock outputs; reduced power and
board space
• Programmable Slew rate for each output; allows tuning
for various line lengths
• Programmable output amplitude; allows tuning for
various application environments
• Pin/software selectable PLL bandwidth and PLL Bypass;
minimize phase jitter for each application
• Outputs blocked until PLL is locked; clean system
start-up
• Software selectable 50MHz or 125MHz PLL operation;
useful for Ethernet applications
• Configuration can be accomplished with strapping pins;
SMBus interface not required for device control
• 3.3V tolerant SMBus interface works with legacy
controllers
• Space saving 48-pin 6x6mm VFQFPN; minimal board
space
• Selectable SMBus addresses; multiple devices can
easily share an SMBus segment
OE(7:0)#
CLK_IN
CLK_IN#
ZDB PLL
8
DIF(7:0)
SADR_tri
HIBW_BYPM_LOBW#
CKPWRGD_PD#
SDATA_3.3
SCLK_3.3
CONTROL
LOGIC
IDT® 8-OUTPUT VERY LOW POWER PCIE GEN1-2-3 BUFFER
1
9DBV0841
REV C 081214