PD178016GC-051_15 Datasheet, PDF (4/96 Pages) Renesas Technology Corp – 8-BIT SINGLE-CHIP MICROCONTROLLER WITH BUILT-IN PRESCALER, PLL FREQUENCY SYNTHESIZER, AND IF COUNTER FOR AUTOMOTIVE FM/MW/LW RADIO APPLICATIONS

µPD178016GC-051
FUNCTION OVERVIEW
Tunable Frequencies, Channel Separation, Reference Frequency, and Intermediate Frequency
Region Band
Europe FM
MW
LW
USA FM
MW
Tunable frequency
87.50 to 108.0 MHz
522 to 1 620 kHz
144 to 288 kHz
87.50 to 108.0 MHz
530 to 1 720 kHz
Channel separation
50 kHz
9 kHz
9 kHz
50 kHz
10 kHz
Reference frequency
50 kHz
9 kHz
9 kHz
50 kHz
10 kHz
Intermediate frequency
10.7 MHz
450 kHz/459 kHz/10.71 MHz
450 kHz/459 kHz/10.71 MHz
10.7 MHz
450 kHz
TUNING FUNCTIONS
(1) Manual tuning
Function
Manual up
Manual down
Description
Each time one of these keys is pressed, the frequency is increased or reduced by one step,
respectively. If either of the keys is held down, the frequency is increased or reduced in high-
speed mode until the key is released.
(2) Auto tuning
Function
Seek up
Seek down
Description
Search for a station, moving either up or down through the frequency range, respectively.
When a station is detected, the corresponding frequency is retained.
(3) Preset memory
Stores six stations in each band (FM1/FM2/FM3/AM), giving a total of 24 stations.
(4) Preset memory scanning
Tunes to the stations stored in the preset memory, holding each station for about five seconds, in each of the
FM1, FM2, FM3, and AM bands.
(5) Auto-storage
Searches through the entire frequency range of the received bands and stores the frequencies of the detected
stations in the preset memory.
(6) Last channel memory
Stores the frequency of the most-recently received station in each of the FM1, FM2, FM3, and AM bands, totaling
four stations.
(7) Auto-retuning
Automatically starts auto-tuning if the SD signal is not detected for about 30 seconds during broadcast reception.
Also starts seek up if traffic information is not received for four seconds in TP/SK mode.
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