PD17012GF-055_15 Datasheet, PDF (54/84 Pages) Renesas Technology Corp – SINGLE-CHIP MICROCONTROLLER WITH ON-CHIP PRESCALER, PLL FREQUENCY SYNTHESIZER, AND IF COUNTER FOR CAR-MOUNTED FM/MW/LW RADIO

µPD17012GF-055
(2) One-station AF switchover at a time
Figure 6-8. Timing Chart for One-Station AF Switchover (1/2)
AF switchover operation
AF return operation
2 34 5
7
6
2 34 7
2 ms
4 ms 2 ms approx. 200 ms 2 ms
2 ms
5 sec.
MUTE
1
With station
Without RDS signal
or the PI code differs
AF switchover operation
AF return
operation
2 34
2 ms
5
4 ms
34 7
2 ms
5 sec.
1
Without station
1 Occurrence of AF switchover condition
2 MUTE first-out wait
3 Frequency division ratio setting
4 PLL lock wait
5 SD stability/IF count wait
6 RDS station detection/PI code input wait
7 MUTE last-out output
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