ASNT5117-KMC View full size
  • High speed broadband D-Type Flip-Flop for data retiming with full rate clock
  • Input data common mode control
  • Exhibits low jitter and limited temperature variation over industrial temperature range
  • 4ps set-up/hold time capability
  • 88% clock phase margin for retiming of data input eye
  • Fully differential CML input interfaces
  • Fully differential CML output interface with adjustable 0 to 900mV single-ended swing
  • Single +3.3V or -3.3V power supply
  • Power consumption: 726mW
  • Fabricated in SiGe for high performance, yield, and reliability
  • Custom CQFP 24-pin package

Function Operating Frequency Power, mW Package
D-Type Flip Flop with Increased Input Signal Sensitivity, Output Amplitude Control, and Common Mode Level Adjustment DC-40 Gbps 726 24-pin CQFP


Fig. 1 Functional Block Diagram

The temperature stableASNT5117-KMC SiGe IC provides broadband data retiming functionality and is intended for use in high-speed measurement / test equipment. The IC shown in Fig. 1 can sample a high-speed data signal dp/dn with a full-rate external clock cp/cn to create a full-rate retimed NRZ data output qp/qn. The internal DC common mode voltage levels on data inputs dp/dn can be adjusted by applying analog voltage to the control input dccd. The output amplitude of the DFF is adjustable by using the control voltage ampadj. The part’s I/Os support the CML logic interface with on chip 50Ω termination to vcc and may be used differentially, AC/DC coupled, single-ended, or in any combination. It operates from a single +3.3V or -3.3V power supply.

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