L3000 datasheet(4/29 Pages) STMICROELECTRONICS

4 / 29 page

PIN DESCRIPTION (L3030)

Symbol

Function

TST

This pin is connected internally for test purpose. It should not be used as a tie point for

external components.

REF

Bias Set

AGND

Analog Ground

VSS

– 5V

VDD

+ 5V

N.C.

Not connected.

CZS

AC Feedback Input

ACF

AC Line Impedance Synthesis

ZAC

AC Impedance Adjustement

TST

These pins are connected internally for test purpose. It should not be used as a tie point

for external components.

VOUT

Two wire unbalanced output.

Capacitor Multiplier Input

DC Feedback Input

Transversal Line Current

RDC

DC Feeding System

EIA

Read/write Command

NCS

Chip Select Command

DIO

Data Input/output

DCKL

Clock Signal

DGND

Digital Ground

N.C.

Not connected.

N.C.

Not connected.

N.C.

Not connected.

Input/output Changing Command

State Control Signal 1

State Control Signal 2

N.C.

Not connected.

N.C.

Not connected.

Longitudinal Line Current

CRTS

Ringtrip Det. & TTX Shaping

TTXIN

Teletaxe Signal Input

RGTTX

TTX Filter Level Compensation

TTXF

TTX Filter Input

Balancing Network

TST

These pins are connected internally for test purpose. It should not be used as a tie point

for external components.

4W Sending Output

RX/RG

4W Receiving and Ring Input

VBIM

Battery Image Input

TST

These pins are connected internally for test purpose. It should not be used as a tie point

for external components.

L3000S - L3030

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