Sharp SC-7700CDH - Function Table of IC (Continued)

~SC-7700CDH ©
RH-IX1314AFZZ
Output
Output
Output
Output
Output
Output
Input .
Output
Output
Input
Output
Output
Output
Output
input
input
input
Input
Output
Output
Output
Output
Output
Output
Here is produced the segment sig-
nal to be applied to LCD panel.
Here is produced the common sig
nal to be applied to LCD panel.
Power supply of 5V + 10%.
FM loca! oscillation signal is here
applied. When AM pin is selected,
this pin automatically goes into
Pult Down mode.
AM local oscillation signal is here
applied. When FM pin is selected,
this pin automaticaily goes into
Pull-Down mode.
Ground pin
PLL error signal is here produced.
The signals available at pins EO1
and EO2 have the same waveform.
Chip enable signal
At High ievet Normal operation
At Low level Back-up operation (to
protect memory contents)
Stop of PLL function Prohibition of
LCD display output.
No connection
4.5 MHz crysta! oscillator is here
connected,
Here is produced the signai to en-
able switching of reception bands.
LS1 LSO Band
High High FM Monaural
High Low FM Stereo
Low High MW
low Low LW
Here is produced the muting signal
to cut possible noises caused when
PLL loop ts unlocked.
Return signal from the key matrix is
here applied.
Return signal from the key matrix 1s
here applied.
Here ts produced the signal which
makes a signal source for the key
matrix.
Here is produced the digit signai,
Output
Input
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Here is produced the digit signal.
IF frequency{10.7 MHz} of FM band
is here applied.
In auto scan search mode, the pre-
sence of a broadcast station is de-
tected by counting of IF frequency.
Power supply of 5V + 10%
IF frequency (450 kHz} of AM band
is here applied
In auto scan search mode, the pre-
sence of a broadcast station is de-
tected by counting of IF frequency.
To be connected to ground pin of
LCD panel.
Here is produced the segment sig-
nal to be applied to LCD panel.