L3000N

L3092

SLIC KIT OPTIMIZED FOR APPLICATIONS WITH BOTH

FIRST AND SECOND GENERATION COMBOS

PRELIMINARY DATA

PROGRAMMABLE DC FEED RESISTANCE

AND LIMITING CURRENT (25/40/60mA)

LOW

ON-HOOK

POWER

DISSIPATION

(50mW typ)

SIGNALLING FUNCTION (off-hook/GND-Key)

QUICK OFF-HOOK DETECTION IN CVS FOR

LOW DISTORTION (< 1 %) DIAL PULSE DE-

TECTION

HYBRID FUNCTION

RINGING GENERATION WITH QUASI ZERO

OUTPUT IMPEDANCE, ZERO CROSSING IN-

JECTION (no ext. relay needed) AND RING

TRIP DETECTION

ABSOLUTELY NO NOISE INJECTED ON

ADIACENT LINES DURING RINGING SE-

QUENCE

AUTOMATIC RINGING STOP WHEN OFF-

HOOK IS DETECTED

TEST MODE ALLOWS LINE LENGHT MEAS-

UREMENT

PARALLEL LATCHED DIGITAL INTERFACE

LOW NUMBER OF EXTERNAL COMPO-

NENTS

WITH

STANDARD

TOLERANCE

ONLY : 9 1% RESISTORS AND 5 10-20% CA-

PACITORS (for 600 ohm appl.)

POSSIBILITY TO WORK ALSO WITH HIGH

COMMON MODE CURRENTS

GOOD REJECTION OF THE NOISE ON BAT-

TERY VOLTAGE (20dB at 10Hz ; 35dB at

1KHz)

INTEGRATED THERMAL PROTECTION

SURFACE MOUNT PACKAGE (PLCC28 +

PowerSO-20)

0

°CTO 70°C: L3000N/L3092

-40

°CTO +85°C: L3000NT/L3092T

DESCRIPTION

The SLIC KIT (L3000N/L3092) is a set of solid

state devices designed to integrate many of the

functions needed to interface a telephone line. It

consists of 2 integrated devices ; the L3000N line

interface circuit and the L3092 control unit.

The kit implements the main features of the

BORSHT functions:

- Battery feed (balance mode)

- Ringing Injection

- Signalling Detection

- Hybrid Function

The SLIC KIT injects the ringing signal in bal-

anced mode and requires a positive supply volt-

age of typically + 72V to be available on the sub-

scriber card.

The L3000N/L3092 kit generates the ringing sig-

nal internally, avoiding the requirement for expen-

sive external circuitry. A low level 1.5Vrms input is

required. (This can be provided by the combo).

A special operating mode limits the SLIC KIT

power dissipation to 50mW in on-hook condition

keeping the on/off hook detection circuit active.

Through the Digital Interface it is also possible to

set an operating mode that allows measurements

of loop resistance and therefore of line lenght.

This kit is fabricated using a 140V Bipolar tech-

nology for L3000N and a 12V Bipolar I

ogy for L3092.

Both devices are available PTH application

(FLEXIWATT15 and DIP28) or SMD application

(PowerSO-20 and PLCC28).

This kit is specially suitable to Private Automatic

Branch Exchange (PABX) and Low Range C.O.

Applications.

This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

November 1994

DIP28

ORDERING NUMBER:

L3092N

PLCC28

ORDERING NUMBER:

L3092FN

FLEXIWA TT15

ORDERING NUMBER:

L3000N

PowerSO-20

ORDERING NUMBER:

L3000NSO

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