le5712 Zarlink Semiconductor, le5712 Datasheet

le5712

Manufacturer Part Number

le5712

Description

Dual Subscriber Line Interface Circuit

Manufacturer

Zarlink Semiconductor

Datasheet

1.LE5712.pdf (24 pages)

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Download datasheet (635Kb)

APPLICATIONS

FEATURES

ORDERING INFORMATION

NOTE: On August 3, 2007, Zarlink Semiconductor acquired the products and

technology of Legerity Holdings.

Le57D121BTC

Le57D122BTC

Ideal for low-cost, high performance line card

applications (CO, DLC)

Meets requirements for countries such as: India,

China, Korea, Japan, Taiwan, and Australia

Meets requirements for North America DLC

applications (TR-57-CORE)

Dual-Channel SLIC device with small footprint

Loop start and Ground start support

+5 V and battery supply required

Optional dual battery operation

–39 to –60 V battery operation

Supplies more than 20 mA into 2000 Ω from –48 V

Programmable current limit

On-chip Thermal Management (TMG) feature in all

Active states

Low standby power (24 mW per channel)

Supports 2.0 Vrms metering applications

Control states: Active and Active Metering (Normal and

Reverse Polarity), Standby, Tip Open and Disconnect

3.3-V compatible to logic control inputs

Power up in Disconnect state

On-hook transmission in Active states

Per-channel fault detection and indication

Per-channel thermal shutdown

Programmable Off Hook and Ground Start thresholds.

Programmable ring-trip detect threshold

Footprint compatible with Legerity’s Le5711 Dual SLIC

The green package meets RoHS Directive 2002/95/EC of the

European Council to minimize the environmental impact of

electrical equipment.

For delivery using a tape and reel packing system, add a "T" suffix

to the OPN (Ordering Part Number) when placing an order.

Device

Voice Solution

44-pin eTQFP (Green),

–53 dB, Reverse Polarity

44-pin eTQFP (Green),

–63 dB, Reverse Polarity

Package Type

Tray

Packing

Dual Subscriber Line Interface Circuit

DESCRIPTION

The innovative Le5712 dual-channel SLIC device is designed

for high-density POTS applications requiring a small-footprint,

low-power SLIC device. By combining a fully featured line

interface of two channels into one SLIC device, the Le5712

device enables the design of a low-cost, high performance, and

fully programmable line interface for multiple country

applications worldwide, including Ground Start and metering

capability. The on-chip Thermal Management (TMG) feature

allows for significantly reduced power dissipation on the

device. Optional dual battery operation to reduce total power

consumption is also available. The device is offered in a

thermally efficient, space-saving 44-pin eTQFP package. The

12 x 12 mm footprint allows designers to make a dramatic

increase in the density of lines on a board. The Le5712 device

is also designed to significantly reduce the number of external

components required for line card design.

Zarlink offers a range of compatible SLAC™ devices that

perform the codec function in a line card. In particular, the

Legerity Quad and Octal SLAC devices combined with the

Le5712 device provides a programmable line circuit that can

be configured for varying requirements.

RELATED LITERATURE

BLOCK DIAGRAM

BGND

TMG

RSN

VTX

081110 Thermal Management for the Le5711 and

Le5712 SLIC Devices Application Note

080900 Le5711 and Le5712 Comparison Brief

Application Note

080753 Le58QL02/021/031 QLSLAC

080754 Le58QL061/063 QLSLAC

080921 Le58083 Octal SLAC

080676 Le5711 Dual SLIC Data Sheet

Detector

CH2

Fault

CH2

Interface

CH2

2-W

CH2

and Control

Decoder

Input

CH2

Document ID# 081047

Rev:

Distribution:

CH2

Common

Bias

CH1

™

Public Document

Data Sheet

™

and Control

CH1

Decoder

VE580 Series

Input

CH1

™

Data Sheet

Le5712

Date:

Version:

Data Sheet

CH1

Interface

Detector

CH1

2-W

Sep 18, 2007

CH1

Fault

CH1

120402

TMG

VTX

RSN

BGND

™

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