Philips SAA3049AP, SAA3049AT Datasheet

INTEGRATED CIRCUITS
DATA SH EET
SAA3049A
Infrared remote control decoder
Product specification Supersedes data of 1996 Apr 15 File under Integrated Circuits, IC02
1996 Sep 13
Philips Semiconductors Product specification
Infrared remote control decoder SAA3049A

FEATURES

Decodes 64 remote control commands with a maximum of 32 subaddresses
Accepts RECS80 codes with pulse position modulation (SAA3004, SAA3007, SAA3008) or RC5 codes with bi-phase transmission (SAA3006, SAA3010)
Suitable for low voltage and low SAA3049A supply current applications
Adding circuitry for binary decoding allows a maximum of 2048 commands to be used, for example 1-of-16 decoder (HEF4515).

ORDERING INFORMATION

TYPE
NUMBER
SAA3049AP DIP20 plastic dual in-line package; 20 leads (300 mil) SOT146-1 SAA3049AT SO20 plastic small outline package; 20 leads; body width 7.5 mm SOT163-1
NAME DESCRIPTION VERSION

GENERAL DESCRIPTION

The main function of the SAA3049A is to check and convert the received coded data (RECS80/RC5) into latched binary outputs. The device address can be hard-wired for a particular address, allowing several devices in one location. Alternatively, received data with any address can be accepted; the received data and address are then outputs.
PACKAGE
Philips Semiconductors Product specification
Infrared remote control decoder SAA3049A

SYSTEM DIAGRAM

handbook, full pagewidth
Remote control transmitters (see individual data sheet for full specification): SAA3004: V SAA3007: V SAA3008: V SAA3006: V SAA3010: V
V
Batt
REMOTE
CONTROL
TRANSMITTER
SAA3004 SAA3007 SAA3008
or SAA3006 SAA3010
= 4to 11 V (max.); 7 × 64 = 448 commands (RECS80 code).
Batt
= 2 to 6.5 V (max.); 20 × 64 = 1280 commands (RECS80 code).
Batt
= 2 to 6.5 V (max.); 20 × 64 = 1280 commands (RECS80 code).
Batt
= 2 to 7 V (max.); 32 × 64 = 2048 commands (RC5 code).
Batt
= 2 to 7 V (max.); 32 × 64 = 2048 commands (RC5 code).
Batt
CQW89A
CQY89A
IR
BPW50
PREAMPLIFIER
+5 V
IR
V
CC
REMOTE CONTROL DECODER
IN
SAA3049A
command acknowledge
CA
4 MHz
bits
A B C D E F
T0 A0 (S0)
A1 (S1) A2 (S2) A3 (S3) A4
MGE374
data
toggle
address
Fig.1 System diagram.
Philips Semiconductors Product specification
Infrared remote control decoder SAA3049A

PINNING

SYMBOL PIN DESCRIPTION
A 1 data output B 2 data output C 3 data output D 4 data output E 5 data output F 6 data output A0 (S0) 7 data/address output/input A1 (S1) 8 data/address output/input IN 9 digital input GND 10 ground MODE 11 RC5/RECS80 mode selection XTAL1 12 crystal oscillator XTAL2 13 crystal oscillator RESET 14 reset input A4 15 address output/input A3 (S3) 16 address output/input A2 (S2) 17 address output/input T0 18 T0 bit CRI 19 command received indicator V
CC
20 supply voltage
handbook, halfpage
1
A
2
B
3
C
4
D
5
E
SAA3049A
6
F
GND
7 8 9
IN
10
MGD347
A0 (S0) A1 (S1)
Fig.2 Pin configuration.
20 19 18 17 16 15 14 13 12 11
V
CC
CRI T0 A2 (S2) A3 (S3) A4 RESET XTAL2 XTAL1 MODE
Philips Semiconductors Product specification
Infrared remote control decoder SAA3049A

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT
V
CC
V
I
I
I
I
O
P
tot
P
o
I
DD
I
SS
T
amb
T
stg
supply voltage 0.5 +7 V input voltage any pin 0.5 VCC+ 0.5 V DC input current any pin −−10 mA DC output current any pin 10 mA total power dissipation 125 mW power dissipation per output 30 mW positive supply current 50 +50 mA negative supply current 100 +50 mA operating ambient temperature 40 +85 °C storage temperature 65 +150 °C

HANDLING

Inputs and outputs are protected against electrostatic charge in normal handling. However, to be totally safe, it is desirable to take normal precautions appropriate to handling MOS devices (see
“Handling MOS Devices”
).
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