UPD1723GF-013 View Datasheet(PDF) - NEC => Renesas Technology

Part Name

Description

Manufacturer

UPD1723GF-013

PLL FREQUENCY SYNTHESIZER AND CONTROLLER FOR FM/MW/LF TUNER (CAR AUDIO)

NEC => Renesas Technology 

µPD1723GF-013, µPD1723GF-213

PIN No.

21

22

23

24

25

26

58

SYMBOL

MTL

NR1

POWER

XO

XI

GND2

GND1

PIN NAME

DESCRIPTION

OUTPUT

TYPE

Tape mode metal signal output pin.

Its output is inverted each time the

MTL

key

Metal output

and METAL function key (selected by diode matrix) is

pressed. When the METAL state is selected with these

keys, the LCD panel “MTL” display lights and high

CMOS

pushpull

level is output from this pin.

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

Noise

reduction

output

Tape mode noise reduction (NR) signal output pin.

When NR1 is selected by the

NR

key or

NOISE REDUCTION function key (selected by diode

matrix), the LCD panel “NR1” display lights and high

CMOS

pushpull

level is output from this pin.

Power

output

When the CE pin is high level, the output of this pin is

inverted each time the POWER key is pressed.

When the power is turned on, low level is output.

CMOS

This pin can be used to turn the set power on and off, pushpull

etc.

See 6 “Application Circuits”.

Crystal

oscillator

Crystal oscillator connection pin. It connects to a 4.5

MHz crystal oscillator.

When the clock function is used, the accuracy of the

clock is effected by the oscillation frequency accuracy

only.

Adjust the oscillation frequency while observing the

CMOS

(XO)

Input (XI)

LCD oscillation waveform and PLL local oscillation

frequency.

Ground

Device ground pins.

Remarks Always connect pins 26 and 58 to the same

potential.

—

GND1 (pin 58) is analog system ground and

GND2 is digital system ground.

12

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