PD17012GF-058_15 Datasheet, PDF (42/94 Pages) Renesas Technology Corp – PLL FREQUENCY SYNTHESIZER AND CONTROLLER FOR FM/MW/LW TUNER (AUTOMOBILE APPLICATION)

µPD17012GF-058
Momentary key
Description
P.SCAN
The same operation occurs for the MW (MW1 and MW2) and LW bands.
When the next preset memory is accessed after a 5-second hold period, a beep is generated. During each
5-second period, the preset memory number display blinks at 1 Hz (with a duty cycle of 50%). The “CH”
display does not blink.
To stop preset memory scanning during a 5-second hold period, press the P. SCAN key again or a preset
memory key that corresponds to the preset memory being currently accessed. It is possible to write to a
preset memory when another preset memory is on hold (for example, write to the M5 when the M1 is on
hold). When a write operation is completed, the preset scan operation ends.
Hold down one of the M1 to M6 keys for at least 2 seconds during the preset scan operation. The
frequency currently being received is written into the preset memory corresponding to the pressed key.
The preset scan operation ends immediately when any of these keys is pressed.
During the preset scan, each key functions as follows:
Key
Description
P.SCAN The scan operation stops, and the current frequency is received.
SCAN UP
SCAN DWN
SEEK UP
MAN UP
MAN DWN
The scan operation stops, the operation corresponding to the pressed key begins
at the frequency being currently received.
BAND
In radio, radio-monitor tape, and radio-monitor CD modes, the scan operation
stops, and the operation corresponding to the pressed key begins at the frequency
being currently received.
RDMONI
Either of the following operations occurs depending on what the current mode is.
(1) In radio mode
The scan operation continues. The RDMONI key becomes ineffective.
(2) In radio-monitor tape and radio-monitor CD modes
The scan operation stops, and the operation corresponding to the pressed key
begins at the frequency being currently received.
LOUD/
ILLUMI-
NATION
POWER
The scan operation continues. The operation corresponding to the pressed key
begins.
MONO/LOC
Either of the following operations occurs depending on the state of the AUTOLOC
initial setting diode.
(1) When AUTOLOC = 0:
The scan operation continues. The operation corresponding to the
MONO/LOC key begins.
(2) When AUTOLOC = 1:
The scan operation continues. The MONO/LOC key becomes ineffective.
M1
In radio, radio-monitor tape, and radio-monitor CD modes, the scan operation
M2
stops. The other operations vary depending on the timing at which the key is
M3
released.
M4
If the key is released within 2 seconds:
M5
The preset memory corresponding to the pressed key is accessed.
M6
If the key is kept pressed for at least 2 seconds:
A frequency being currently received is written to the preset memory correspond-
ing to the pressed key.
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