參數(shù)資料
型號(hào)： SAA3049AT
廠商： NXP SEMICONDUCTORS
元件分類： 搖控器
英文描述： Infrared remote control decoder
中文描述： INFRARED, RECEIVER IC, PDSO20
封裝： 7.50 MM, PLASTIC, MS-013AC, SOT-163-1, SOP-20
文件頁(yè)數(shù)： 7/16頁(yè)
文件大?。?/td> 92K
代理商： SAA3049AT
1996 Sep 13
7
Philips Semiconductors
Product specification
Infrared remote control decoder
SAA3049A
Reset
The circuit is shown in Figs 5, 6 and 7. The alternative reset circuit shown in Fig.3 protects against short term power
supply transients by generating a reset.
The reset pin should either be connected to external reset circuitry as proposed or connected to V
SS
. If connected to V
SS
,
a reset pulse will be generated by the on-chip Power-on reset circuit at typically 1.3 V (
±
500 mV accuracy).
Fig.3 Proposed improved reset circuit.
handbook, full pagewidth
MGE375
390
1 k
68 k
1.8 k
1
μ
F
1N4148
1N4148
zener diode
3.6 V
BC548
VCC
20
14
SAA3049A
Infrared signal input (pin 9)
This pin is sensitive to a negative-going edge.
Command received indicator (pin 19)
Fig.4 Output diagram of command acknowledge.
handbook, halfpage
MGE376
≈
15 ms
≈
120 ms
pin 19
APPLICATION INFORMATION
In Fig.5, the circuit shown is for use with transmitters
SAA3004, SAA3007 or SAA3008; pin 11 is HIGH for
RECS80 code.
In Fig.6, the circuit shown is for use with transmitter types
SAA3006 or SAA3010; pin 11 is LOW for RC5 code.
In Fig.7, the decoder is set for the required subaddress by
holding the address pins HIGH or LOW. Pin 11 is HIGH for
use with transmitter types SAA3004, SAA3007 or
SAA3008 (RECS80 code). Pin 11 is LOW for use with
transmitter types SAA3006 or SAA3010 (RC5 code).
The remote control decoder is for up to 32 subaddresses
with 6 + 1-bit parallel outputs (RC5 code).
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