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m m
€6—RM-1100
20~22
| CK-1
CK-2
Data
[Fin Wo [Symbol] _—~Dewetion
Auto-search stop input terminal.
When
a broadcast is detected
during auto-
search operation, ''H" level signal is applied
from Q3 (28D601, SWITCHING) to the A-STOP
terminal to stop the auto-search.
Preset memory storage terminal.
Pressing the memory switch (S6) brings pin 13
to "'L" to ready the circuitry for storage.
Memory addressing input terminals.
When the desired program switch (S7, $8, S9 or
$10) is pressed
in the memory
set ready
condition, the corresponding terminal (M1, M2,
M3 or M4) goes "'L". At this time the reception
frequency data is stored. The stored data can
be read by simply pressing the corresponding
program switch (S7, S8, S9 or S10).
Reception
frequency
data and timing signal
output terminals.
A cycle of data and signal is serially delivered
only when the reception frequency is altered,
i.e., when the UP/DOWN
key is pressed, the
memory is read, or the band is changed.
The timing signals for data signal reading are
delivered from the CK-1 (pin 20) and CK-2 (pin
21) terminals.
The reception frequency data is delivered from
the DATA terminal (pin 22).
[Example] AM 1000 kHz [Example] FM 100 MHz
Phase comparator output terminal.
When the phase of the frequency-divided output
of the programmable counter lags behind the
reference frequency, the output at the phase
comparator output terminal goes "L" for the
period corresponding to the phase difference.
When the counter output leads, the comparator
output goes ''H" for the period corresponding to
the phase difference.
Muting output terminal.
The muting output is delivered from the MUTE
terminal at the time of key operation and other
cases.
Pm Wo[Svmbal]| __—~awarton
FM programmable counter input terminal.
The FM local oscillation signal which is divided
into
1/30
or
1/32
by the
prescaler
(IC6
RVITD6104P)
is inputted to this terminal.
[Example] FM 100 MHz
1.6V
NMA
f
2.8usec
This is the terminal to deliver the frequency
dividing ratio change over output signal to the
pre-scaler (1C6 RVITD6104P).
AM programmable counter input terminal.
The AM local oscillation signal is directly applied
from pin 8 of IC301 (PVIUPC1215VE) to the AM
IN terminal in the AM mode.
4V
OV
7psec
[Example] AM 1000 kHz
Inhibit input terminal.
When the power is turned on, the voltage rising
time at the INH terminal (pin 40) is delayed for a
certain time [the time constant of R90 (100 kQ)
and C94 (1,F)]. The band mode selection data
is read during this rising time.
A voltage of 5 V+0.5 V supply to this termina
during device operation.
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