PD17012GF-055_15 Datasheet, PDF(80/84 Page) Renesas Technology Corp – SINGLE-CHIP MICROCONTROLLER WITH ON-CHIP PRESCALER, PLL FREQUENCY SYNTHESIZER, AND IF COUNTER FOR CAR-MOUNTED FM/MW/LW RADIO

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PD17012GF-055_15 Datasheet, PDF (80/84 Pages) Renesas Technology Corp – SINGLE-CHIP MICROCONTROLLER WITH ON-CHIP PRESCALER, PLL FREQUENCY SYNTHESIZER, AND IF COUNTER FOR CAR-MOUNTED FM/MW/LW RADIO

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ÂµPD17012GF-055

Appendix 4.4 Attenuator data output timing

The timing of attenuator data output to the electronic volume is shown in Figure A-5.

Figure A-5. Attenuator Data Output Timing

ATT/LOUD

OFF

VOLSDA

Chip ID Master VOL

VOLSCL

Less than approx. 2 seconds

Inverts "ATT" display

Master VOL : 0 to 50 steps

: Right front volume data

: Left front volume data

: Right rear volume data

: Left rear volume data

When the attenuator is turned on, â20 dB is subtracted from each of master VOL, RF, LF, RR, LR, and the

result is output.

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