HFA3761 Datasheet (Intersil Corporation) - 400MHz AGC and Quadrature IF Demodulator

HFA3761, 400MHz AGC and Quadrature IF Demodulator

PIN 1 2 3 4 5, 6, 7, 8 9 10 11 12 13 14 15 16 17 SYMBOL AGC1_BYP+ AGC1_In+ GND AGC_Sel AGC1_InAGC1_BYPGND LPF_VCC 2V REF LPF_BYP NC NC LPF_RXI_Out LPF_RXQ_Out LPF_Sel1 LPF_Sel0 DESCRIPTION DC feedback pin for AGC ampliﬁer 1.

Requires good decoupling and minimum wire length to a solid signal ground.

HFA3761 Features

* all the necessary blocks for baseband demodulation of I and Q signals. It has a two stage integrated AGC IF ampliﬁer with 82dB of voltage gain and 76dB of gain control range. Baseband antialiasing and shaping filters are integrated in the design. Four filter bandwidths are programmable via a two bit