ASNT5101-PQC View full size
  • Broadband (DC-22Gbps/20GHz) tunable data/clock phase shifter
  • Delay adjustment range of 105ps
  • Exhibits low jitter and limited temperature variation over industrial temperature range
  • 2GHz of bandwidth for the phase adjustment tuning ports
  • Fully differential CML input interfaces
  • Fully differential CML output interface with 850mV single-ended swing
  • Single +3.3V or -3.3V power supply
  • Power consumption: 745mW
  • Fabricated in SiGe for high performance, yield, and reliability
  • Standard MLF/QFN 24-pin package

Function Operating Frequency Power, mW Package
Clock / Data Phase Shifter with 105ps Delay Variation DC-22Gbps / DC-20 GHz 745 24-pin QFN


Fig. 1 Functional Block Diagram

ASNT5101-PQC is a data / clock variable delay line fabricated in SiGe technology. Due to an extremely low jitter, the part is suitable for use in high-speed measurement / test equipment. The IC shown in Fig. 1 provides an adjustable delay of its differential output signal outp/outn in relation to its broadband input signal inp/inn. The delay is controlled through a wide-band differential tuning port icntp/icntn.


The part’s I/O’s 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. In the DC-coupling 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 AC-couping mode, the input termination provides the required common mode voltage automatically. The differential DC signaling mode is recommended for optimal performance.