BL0508A1 Datasheet, PDF (1/1 Pages) SHANGHAI BELLING CO., LTD. – Infrared Remote Control Transmitter IC

BL0508A1 Infrared Remote Control Transmitter IC
Description
The BL0508A1 is an infrared remote control transmitter LSI. There are 32 function keys and 3 double action
keys . The transmission code consists of “leader pulse”, “16bit customer code ”and “16 bit date ”. Using
microprocessors for decode, various applications can be realized. (BL0508A1 is compatible with LC7462)
Pin Assignment
KL0
1
KL1
2
KL2
3
KL3
4
REM 5
V DD
6
SEL 7
OSC0 8
OSC1 9
V SS
10
20 CCS
19 KI/00
18 KI/01
17 KI/02
16 KI/03
15 KI/04
14 KI/05
13 KI/06
12 KI/07
11 LMP
SOP 20
Features
Low voltage operation: V_DD=2.0~3.3V
Low power consumption: I_DD ≤ 1 A at standby mode
A system with high interference resistance and an
extremely low error rate .
Fewer external parts
Use of ceramic resonator with a 400 to 500kHz
oscillation is designed for non-adjustment operation
Applications:
Remote Control for TV
Sample Application Circuit:
455kHz Ceramic Resonator
3V
+
47µF
-
CG
1KΩ
Transmission
Display
CD
VDD OSC1 1 OSC1 0 SEL
CCS
K10~K13
BL0508A1
LMP
VSS
REM
Infrared Light
Emitting Diode
SE103AC,SE307
SE313,SE1003
2SC3616,3618
2SD1615,1616
2SC2001
2.0KΩ
Address No.810, YiShan Road ShangHai China Tel [phone] Fax [phone] Zip.200233