BL 54573B TV Band Switches Integrated Circuit
Description BL54573B is a high frequency tuner's band decoder nd driver. It decodes the hand switches signals from remoter and drives the tuner, so completing hand switch function.
Pin Assignment
Features n n n n Direct used between remoter and tuner .The external circuit is simple. Uses 12V of inner voltage Open collector output Single 8 pins plastic package Applications Band switches for remote system Application Circuit BL54573 used in Mitsubishi color TV remote system
BL54573 12345678 +12V BV GND TO HF Tuner BS BU 120K 120K BL50436 BAND1 BAND2
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