ASNT8170-KMM View full size
  • DC to 5.6GHz finite impulse response filter.
  • Two differential CML-type input ports and one differential CML-type output port.
  • Nine analog tap-weight control inputs.
  • Differential gain of approximately 0dB.
  • Single +3.3V or -3.3V power supply.
  • Power consumption: 422mW.
  • Fabricated in SiGe for high performance, yield, and reliability.
  • Custom CQFP 44-pin package.

Function Operating Frequency Power, mW Package
9-Tap Finite Impulse Response Filter DC-5.6 GHz 422 44-pin CQFP


Fig. 1 Functional Block Diagram

The ASNT8170-KMM IC receives a data signal with the rate of up to 5.6Gbps through its data input differential port and a clock signal with the frequency of up to 5.6GHz through another differential port. The signals are used by an internal register to generate 9 copies of the input data signal shifted by ½ of the clock period. Those 9 copies are linearly summed with different weights and polarities that are externally controlled through nine tap control inputs. The resulting signal with the required digital pre-emphasis is supplied to the differential output through a linear output buffer.

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