SAA3010 Datasheet, PDF (12/20 Pages) NXP Semiconductors – Infrared remote control transmitter RC-5

Philips Semiconductors
Infrared remote control transmitter RC-5
Product specification
SAA3010
Oscillator
The OSC is the input/output for a 1-pin oscillator. The oscillator is formed by a ceramic resonator, TOKO CRK429, order
code, 2422 540 98069 or equivalent. A resistor of 6.8 kΩ must be placed in series with the resonator. The resistor and
resonator are grounded at one side.
Test
Initialization of the circuit is performed when TP1, TP2 and OSC are HIGH. All internal nodes are defined except for the
LATCH. The latch is defined when a scan cycle is started by pulling down an X- or Z-input while the oscillator is running.
If the debounce cycle has been completed, the scan cycle can be completed 3 × 2³ faster, by setting TP1 HIGH.
If the scan cycle has been completed, the contents of the latch can be read 3 × 2⁷ faster by setting TP2 HIGH.
June 1989
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