saa3008 NXP Semiconductors, saa3008 Datasheet - Page 5

• Manufacturer Part Number: saa3008
• Description: Infrared Remote Control Transmitter Recs 80 Low Voltage
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Oscillator (OSCI, OSCO)
The external components for the oscillator circuit are connected to OSCI and OSCO. The oscillator operates with a
ceramic resonator in the frequency range 350 kHz to 500 kHz, as defined by the resonator. When operating at a supply
voltage of below 3 V a 270 kHz resistor should be connected in parallel with the resonator.
December 1988
Infrared remote control transmitter
(RECS 80 low voltage)
Where:
Reference time
start pattern T0 toggle bit
S3, S2, S1, S0 subsystem address
A to F
t
binary values
W
Fig.4 Waveform for one pulse period at REMO output; for timing values see Table 3.
command bits
word length
determined by pulse spacing
(b) Transmission with start-pattern and subsystem address 8 to 20.
Fig.3 Data format of remote control signal (REMO).
5
Preliminary specification
SAA3008