D1723GF datasheet(7/80 Pages) NEC

7 / 80 page

µPD1723GF-013, µPD1723GF-213

PIN No.

SYMBOL

PIN NAME

Radio mode LOCAL signal output pin.

This pin is valid when the initialize diode AUTOLOC

switch is 0.

Each time the

key is pressed, the LOCAL

state is inverted. In the LOCAL state, the LCD panel

“LOC” display lights.

When autotuning (seek up/down, scan up/down, auto

memory) is performed when the “LOC” display is ON,

High level is output from this pin. The LOCAL state is

common to the FM, VF, MW, and LW bands.

When the power is turned on, this pin goes low.

Mode switching signal output pin.

Its output in each mode is shown below.

DESCRIPTION

OUTPUT

TYPE

LOC

MODE

Mode

• CW = Low

• CE = High; radio, tape, and CD OFF

• Radio mode

• Tape mode

• CD mode

• Tape DK standby

• CD DK standby

• DK ON

• Radio monitor mode

0: Low level, 1: High level

That is, when the PLL is operated, High level is output

from this pin. Therefore, use it to turn the tuner power on

and off, etc.

LOC

Local output

CMOS

pushpull

Mode signal

output

MODE

CMOS

pushpull

D1723GF Datasheet(PDF) 7 Page - NEC

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