BL9148 Datasheet, PDF (1/2 Pages) SHANGHAI BELLING CO., LTD. – BL9148

BL9148
General infrared Ray Remote Control Transmitter
Description
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.
Pin Assignment
GND
XT
XT
K1
K2
K3
K4
K5
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
Features
Wide range of operating supply voltage
(V_DD=2.2~5.5V)
CMOS structure assures extremely low
power dissipation
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.
Applications
Use as remote control transmitters in audios, air conditioners, toys and others.
Address No.810, YiShan Road ShangHai China Tel [phone] Fax [phone] Zip.200233