UPD1723GF-213 View Datasheet(PDF) - NEC => Renesas Technology

Part Name

Description

Manufacturer

UPD1723GF-213

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

NEC => Renesas Technology 

µPD1723GF-013, µPD1723GF-213

PIN No.

6

7

SYMBOL

FM

CE

PIN NAME

FM local

oscillation

input

Chip enable

DESCRIPTION

OUTPUT

TYPE

The FM local oscillation output (VCO output) is input

to this pin.

When the radio is turned on and the FM band is

received, this pin becomes active. Otherwise, it is

pulled down internally.

The input amplitude is 0.3 VP-P MIN.

Since there is an on-chip AC amplifier, block the DC

component of the input signal with a capacitor.

Input

Device select signal input pin.

When the device is operated normally (radio, tape, CD,

clock display, etc.), High level is input and when the

device is not used, Low level is input.

However, High and Low levels of 134 µs or less are not

accepted.

When this pin is Low level, the radio, tape, CD, and

display are turned off and the device enters the data

hold state.

At this time, data hold at low consumption current (400

nA or less) is possible by setting the NOCLK switch of

the diode matrix to be described later to 1 (shorted by

diode, no-clock mode).

Input

Radio mode AGC (AUTOMATIC GAIN CONTROL) cut

signal output pin.

During autotuning, the High level shown below is

output.

RDMUTE

Pin

AGC cut

9

AGCC

output

Œ



50 ms 40 ms

AGCC Pin

Ž

250 to 375 ms

CMOS

pushpull

Key ON

Broadcast Station

ΠKey ON Chattering Wait

 Premuting

Ž Postmuting

6

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