General infrared Ray Remote Control Transmitter
The BL9148 is CMOS LSI developed for use n the general infrared ray remote control transmitter. The
circuit has 10 functions ombining with BL9149 while it has 18 functions combining with BL9150.And total
75 commands can be transmitted: 63 commands by continuous keys, as multiple keying is possible, and 12
commands by single-shot keys.
1 16 V DD
2 15 TX OUT
3 14 TEST
4 13 Code
5 12 K3
6 11 K2
7 10 K1
8 9 K0
DIP 16 PIN
Wide range of operating supply voltage
CMOS structure assures extremely low
Multiple Keying is possible.
Less external parts
Adaptable to other models as code bits are available.
An oscillator can be constructed only by connecting an LC or ceramic resonator.
Use as remote control transmitters in audios, air conditioners, toys and others.
Address No.810, YiShan Road ShangHai China Tel 86-021-64850700 Fax 86-64852222 Zip.200233