LUCL9310AP-DT datasheet(4/60 Pages) AGERE

Part #	LUCL9310AP-DT

Description	Line Interface and Line Access Circuit Full-Feature SLIC,Ringing Relay,and Test Access Device

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Manufacturer	AGERE [Agere Systems]

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Data Sheet

July 2001

Full-Feature SLIC, Ringing Relay, and Test Access Device

L9310 Line Interface and Line Access Circuit

4

Agere Systems Inc.

Features

s

SLIC, solid-state ring relay, and line test access, inte-

grated into a single package

s

5 V and battery operation

s

User-defined power control options:

— Automatic battery switch

— Power control resistor

— Package thermal capabilities

s

Minimal external components required

s

Operating states:

— Forward active

— Reverse active (controlled rate of reversal)

— Scan

— Ground start (tip open)

— All-off or disconnect

— Ring

— Periodic pulse metering (PPM) active modes

— Line test modes (dc/ac line voltage/current)

s

Ultralow power:

— Scan, 15 mW

— Active states, on-hook, 75 mW

— Ring mode, on-hook, 90 mW

— Disconnect, 10 mW

s

Adjustable overhead voltage:

— Default overhead adequate for 3.14 dB into

900

Ω overload

— Controlled rate of overhead adjustment

s

Latched parallel input data interface with reset

s

Interrupt (unlatched) based loop status monitor

s

Adjustable current limiter:

— 10 mA to 70 mA programming range

s

Adjustable loop closure detector with hysteresis:

— 4 mA detect, 2.5 mA no detect minimum, upper

limit of 15 mA detect

— Hysteresis, typical 20% of programmed on-hook

to off-hook threshold

s

Ring trip detector:

— Single-pole filtering

s

Thermal shutdown protection with hysteresis

s

Line break switch will foldover into a low-current

state under high-voltage fault conditions

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Battery out-of-range monitor circuit:

— All-off upon loss of battery (low battery condition)

— All-off upon high battery (fault condition)

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Longitudinal balance:

— ETSI/ITU-T, GR-909 balance

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Ground start:

— Tip open state

— Ring ground detector

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Ground key:

— Tip/ring ground detector

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Meter pulse compatible:

— Dedicated meter pulse signal input

— On-hook transmission of PPM (up to 5 Vrms)

— Provides convenient access for hybrid filtering of

meter pulse

s

Line test:

— Line test modes (ac or dc):

1. Voltage tip to ground

2. Voltage ring to ground

3. Voltage tip to ring

4. Current tip to ring

5. Current tip to ground

6. Current ring to ground

— Inject test tones through codec interface or dedi-

cated input pin

— Analog output at dedicated output pin

s

RFI/EMC-EN 300 386-2 V1.1.3 (1997-12)

s

Integrated 2 Form C ring relay:

— Low impulse noise

— Current-limited switches

— Break-before-make and make-before-break

switching

s

Meets ITU-T K20, ITU-T K21, and

Telcordia*

GR1089 requirements with external protection

device

s

44-pin, surface-mount plastic package (PLCC)

Description

The L9310 electronic line interface and line access cir-

cuit (LILAC) provides all the functions that are neces-

sary to interface a codec to the tip and ring of a

subscriber loop, integrating the battery feed and ringing

access relay in one low-power, low-cost package. The

physical construction of the device is two chips. The

first chip is manufactured in Agere 90 V complemen-

tary bipolar integrated circuit (CBIC-S) technology. This

chip contains the SLIC functionality:

s

ac transmission path

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dc feedback and functions

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Active dc current limit

s

Active mode loop supervision

s

Thermal shutdown

*

Telcordia is a trademark of Bell Communications Research, Inc.

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