ASNT5051-PQC


ASNT5051-PQC View full size
  • High-speed broadband switch with high isolation for selecting one of two inputs
  • Exhibits low jitter and limited temperature variation over industrial temperature range
  • DC to 1.0GHz analog bandwidth for control input
  • Ideal for high speed proof-of-concept prototyping
  • Fully differential CML input interface
  • Fully differential CML output interface with 550mV single-ended swing
  • Single +3.3V or -3.3V power supply
  • Power consumption: 287mW
  • Fabricated in SiGe for high performance, yield, and reliability
  • Standard MLF/QFN 24-pin package

Function Operating Frequency Power, mW Package
High Isolation Selector / Switch 1 of 2 DC-32 Gbps / DC-17 GHz 287 24-pin QFN

DESCRIPTION

Fig. 1 Functional Block Diagram

The temperature stable and broadband ASNT5051-PQC SiGe IC can be utilized as a high isolation selector switch and is intended for use in high-speed measurement / test equipment. When The IC shown in Fig. 1 can route one of its differential data input signals d0p/d0n or d1p/d1n to its differential output outp/outn while effectively blocking the other data input with high isolation. Selection of a specific data input is achieved through an appropriate external DC biasing of the selector signal inputs cp/cn.

 

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 DC-coupling mode, the input signal's common mode voltage should comply with the specifications shown in electrical characteristics within the part's datasheet. In the AC-coupling mode, the input termination provides the required common mode voltage automatically. The differential DC signaling mode is recommended for optimal performance.

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