PD17012GF-058_15 Datasheet, PDF (30/94 Pages) Renesas Technology Corp – PLL FREQUENCY SYNTHESIZER AND CONTROLLER FOR FM/MW/LW TUNER (AUTOMOBILE APPLICATION)

µPD17012GF-058
2.6.2 Alternation or transistor switch
In the following table, a statement that a switch is on (off) means that a high (low) level is input.
Alternation/
transistor switch
Description
CDSET
This switch selects CD mode. It is effective only when the CE pins is at a high level. Setting this switch to
on selects CD mode.
DTH
This is the input switch to specify whether the detachable panel is attached. When this switch is off, it
indicates that the panel is detached.
FF
This is the fast forward signal input switch for tape mode.
The tape run direction indicator ( ) may light depending on the state of the RL switch as listed below.
FF
RL
Indicator
0
0
1
0
1
1
: Does not light
0 : Off 1 : On
: Lights : Blinks (at 2.5 Hz)
RDSET
RL
ST
TPSET
This switch selects radio mode. It is effective only when the CE pin is at a high level. If both CDSET and
TPSET switches are off, setting the RDSET switch to on selects radio mode.
This is the forward run signal input switch for tape mode. The tape run direction indicator ( ) is
controlled according to the state of the FF switch. See the description of the FF switch for the state of the
indicator.
This switch is a stereo signal input switch for radio mode. For the FM band in radio mode, setting this
switch to on turns on the “ST” display. If the stereo reception function is available for the MW band (initial
setting diode MWS = 1), setting the ST switch to on with the MW band selected turns on the “ST” display.
However, the display is turned off in the monaural state.
This switch selects tape mode. It is effective only when the CE pins is at a high level. If the CDSET
switch is off, setting the TPSET switch to on selects tape mode.
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