Datasheet Summary
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 posed 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...