FX602P3 datasheet(4/29 Pages) CMLMICRO

4 / 29 page

Calling Line Identifier

FX602

D/602/7

1.3

Signal List

Packages

D4 / P3

Signal

Description

Pin No.

Name

Type

XTALN

O/P

The output of the on-chip Xtal oscillator inverter.

XTAL

I/P

The input to the on-chip Xtal oscillator inverter.

I/P (S)

Input to the Ring or Line Polarity Reversal

Detector.

Open-drain output and Schmitt trigger input

forming part of the Ring or Line Polarity Reversal

detector. An external resistor to VDD and a

capacitor to VSS should be connected to RT to

filter and extend the RD input signal.

AOP

The output of the on-chip Input Signal Amplifier

and the input to the Bandpass Filter.

INV

I/P

The inverting input to the on-chip Input Signal

Amplifier.

NINV

I/P

The non-inverting input to the on-chip Input

Signal Amplifier.

VSS

Power

Negative supply rail (signal ground).

VBIAS

O/P

Internally generated bias voltage, held at VDD/2

when the device is not in 'Zero-Power' mode.

Should be decoupled to VSS by a capacitor

mounted close to the device pins.

MODE

I/P (S)

Input used to select the operating mode. See

section 1.5.1.

I/P (S)

A high level on this input selects 'Zero-Power'

mode, a low level enables the Input Signal

Amplifier, the Bandpass Filter and either the FSK

or the Tone Alert circuits depending on the

MODE input.

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