X2Y® Circuit 2: Decoupling
When used in circuit 2 configuration, A & B capacitors are placed in parallel effectively doubling the effective capacitance while maintaining an ultra-low inductance. The low inductance advantages of the X2Y® Capacitor Circuit enables high-performance bypass networks at reduced system cost.
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- Lower via count, improves routing
- Reduces component count
- Lowers placement cost
- Low ESL (device only and mounted)
- Broadband Performance
- Effective on PCB or package
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X2Y High Performance Power Bypass - Improve Performance, Reduce Space & Vias
Actual measured performance of two high performance SerDes FPGA designs demonstrate how a 13 component X2Y bypass network significantly out performs a 38 component MLC network.
For more information see: Simplified design and improved performance using X2Y® capacitors and Altera StratixII GX SerDes.
Component Performance
The X2Y® has short, multiple and opposing current paths resulting in lower device inductance
TECH NOTE: X2Y Inductance Ratings
PCB MOUNTED PERFORMANCE
TECH NOTE: Proper X2Y Attachment Techniques
TECH NOTE: Impact of PCB Stack-up and Capacitor Via Design In Power Distribution Design, IEEE EMC Society SCV Meeting
SYSTEM PERFORMANCE
1:5 MLCC REPLACEMENT EXAMPLE
X2Y's proven technology enables end-users to use one X2Y capacitor to replace five conventional MLCCs in a typical high performance IC bypass design. Vias are nearly cut in half, board space is reduced and savings are in dollars per PCB.
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34% NOISE IMPROVEMENT 1:3 MLCC REPLACEMENT
TECH NOTE: X2Y Stratix II GX SerDes Bypass
TECH NOTE: X2Y Live FPGA Power Bypass
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Surface Mount Products 
