SAA3049 データシートの表示（PDF） - Philips Electronics
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SAA3049 Datasheet PDF : 16 Pages
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Philips Semiconductors
Infrared remote control decoder
Product specification
SAA3049A
CHARACTERISTICS
VCC = 2.5 to 5.5 V; Tamb = −40 to +85 °C; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP.
MAX.
UNIT
Supply
VCC
supply voltage
ICC
supply current
VDD = 3 V,
fxtal = 4 MHz
Input signals (pin 9)
VIH
HIGH level input voltage
VIL
LOW level input voltage
Mode selection (pin 11)
VIH
HIGH level input voltage
VIL
LOW level input voltage
Command received indicator and mode control (pin 19); note 1
VIH
HIGH level input voltage
VIL
LOW level input voltage
Crystal oscillator
fosc
oscillator frequency
note 2
Outputs
2.5
−
5.5
V
−
0.3
0.7
mA
0.7VCC −
0
−
0.7VCC −
0
−
0.7VCC −
0
−
−
4
VCC
0.3VCC
VCC
0.3VCC
VCC
0.3VCC
−
V
V
V
V
V
V
MHz
OPEN-DRAIN WITHOUT INTERNAL PULL-UP RESISTOR; note 3
IOL(sink)
LOW level output sink current
VCC = 5 V;
−1.6
−12
−
mA
VOL = 0.4 V
Notes
1. With pin 19 = HIGH, then pins 7, 8, 15, 16 and 17 are address inputs.
With pin 19 = LOW, then pins 7, 8, 15, 16, and 17 are 4 or 5 address received outputs.
a) In Figs 5, 6 and 7 this HIGH/LOW switching is dependent on whether the transistor on pin 19 is fed via a series
resistor or not. In both applications pin 19, which toggles several times (see Fig.4) while a valid command is
acknowledged, can be used to activate (flash) an LED indicator.
2. A quartz crystal with a frequency of 4 MHz is recommended for the standard transmitter application.
3. Application as output requires connection of an external pull-up resistor.
1996 Sep 13
6
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