-24-
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Pin No.
Pin Name
I/O
Description
IC DESCRIPTION-1/4 (TC9256P)-1/1
I
O
I
I
I/O
O
O
O
—
I
I
—
I
I
O
O
Crystal ocsillator pins. Connect 7.2MHz crystal oscillator to supply reference frequency and
internal clock.
Crystal ocsillator pins. Connect 7.2MHz crystal oscillator to supply reference frequency and
internal clock.
Period signal input.
Clock signal input.
Serial data input / output
Tuner-on Switch.
FM-on Switch.
High : MW
Low : LW
Power supply pins.
These pins input FM and AM band local oscillator signals by capacitor coupling.
These pins input FM and AM band local oscillator signals by capacitor coupling.
Ground.
Counter frequency measurement input.
Counter frequency measurement input.
These pins are for phase comparator tristate output.
These pins are for phase comparator tristate output.
XT
______
XT
PERIOD
CLOCK
DATA
TUN-ON
FM-ON
LW/MW
VDD
AMIN
FMIN
GND
IFIN
ST. -IN
DO1
DO2
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