ASNT3111-PQC


ASNT3111-PQC View full size
  • High-speed broadband digital signal level up-shifter
  • Fully differential input CML interface with on-chip single-ended 50Ohm termination to ground
  • Fully differential output PCML interface with on-chip single-ended 50Ohm termination to the positive supply rail
  • Exhibits low jitter and limited temperature variation over industrial temperature range
  • Fabricated in SiGe for high performance, yield, and reliability
  • Power consumption: 260mW
  • Standard 24-pin QFN package
Function Operating Frequency Power, mW Package
Single-Channel CML-to-PCML Level Shifter DC-20 Gbps 260 24-pin QFN

DESCRIPTION

Fig. 1 Functional Block Diagram

The ASNT3111-PQC SiGe IC shown in Fig. 1 provides a voltage shift for high-speed data and clock CML signals from the levels associated with negative power supplies to the levels associated with positive power supplies.

 

The part’s inputs support the CML logic interface with on chip 50Ω termination to gnd and may be used differentially, AC/DC coupled, single-ended, or in any combination. In the first mode, the input signal’s common mode voltage should comply with the specifications shown in the electrical characteristics section within the part's datasheet. In the second mode, the input termination provides the required common mode voltage automatically. The part’s outputs support the PCML logic interface with on chip 50Ω termination to vcc and may be used differentially, AC/DC coupled, single-ended, or in any combination. The differential DC signaling mode is recommended for optimal performance.

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