BL54573 Datasheet, PDF (1/1 Pages) SHANGHAI BELLING CO., LTD. – TV Band Switches Integrated Circuit

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
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
+12V
BV
GND
TO HF Tuner
BS
BU
BL54573
12345678
120K
120K
BL50436
BAND1
BAND2
Address No.810, YiShan Road ShangHai China Tel [phone] Fax [phone] Zip.200233