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Ordering number : EN660A
Monolithic Linear IC
LA1231N
FM IF System
Overview
Package Dimensions
Being developed for FM IF System, LA1231 is a highly unit: mm integrated circuit in which almost all functions are 3006B-DIP16 contained concerning the FM tuner IF stage. The block
diagram of equivalent circuit is shown below. Usual
[LA1231N]
peripheral circuits are shown also in examples of
application circuits.
The IF amplifier and limiter stages are composed of 6-
stage double-end type differential amplifier, which is
superior on its AMR. The signal meter driving stage which
is located in parallel therewith consists of a 3-stage level
detector circuit and a drive circuit in order to extend the
linear area.
A1231N Datasheet
