ASNT5037-PQC View full size
  • Broadband (DC-17Gbps) limiting amplifier
  • Exhibits low jitter and limited temperature variation over industrial temperature range
  • 100MHz of bandwidth for the amplitude adjustment tuning port
  • Ideal for high speed proof-of-concept prototyping
  • Fully differential CML input interfaces
  • Fully differential CML output interface with adjustable SE amplitude from 0V to 1.16V
  • Single +3.3V or -3.3V power supply
  • Power consumption: 647mW
  • Fabricated in SiGe for high performance, yield, and reliability
  • Standard MLF/QFN 24-pin package
Function Operating Frequency Power, mW Package
Limiting Amplifier with Variable Control Amplitude (3.3V Power Supply) DC-17 Gbps 647 24-pin QFN


Fig. 1 Functional Block Diagram

The temperature stable ASNT5037-PQC SiGe IC provides extremely low jitter broadband signal amplitude control capability, and is intended for use in high-speed measurement / test equipment. The IC shown in Fig. 1 can process a high-speed data signal inp/inn and deliver a high-speed data output signal outp/outn with its output signal amplitude controlled by tuning ports tnp/tnn. Higher values of tnp and lower values of tnn (or higher values of the differential signal) result in higher output amplitudes.


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. 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-coupling mode, the input termination provides the required common mode voltage automatically. The differential DC signaling mode is recommended for optimal performance.