Catalogue - LE75181A PRODUCT PROFILE - Zarlink Semiconductor

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Decoder, Frequency divider, Packet switch, Laser diode driver, Codec

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Le75181

Ringing Access Switch VE750 Series

Legerity Voice Solution

APPLICATIONS

■ Central office

■ DLC

■ PBX

■ DAML

■ HFC/FITL

FEATURES

■ Small size/surface-mount packaging

■ Monolithic IC reliability

■ Low impulse noise

■ Make-before-break, break-before-make operation

■ Clean, bounce-free switching

■ Low, matched ON-resistance

■ Built-in current limiting, thermal shutdown, and SLIC protection

■ 5 V only operation, very low power consumption

■ Battery monitor, all OFF state upon loss of battery

■ No EMI

■ Latched logic level inputs, no drive circuitry

■ Only one external protector required

■ TTL logic control compatible

■ Default power up state

RELATED LITERATURE

■ 081123 Le75282 Dual Intelligent Line Card Access Switch Data Sheet

■ 081126 Le75183 Line Card Access Switch Data Sheet

■ 080754 Le58QL061/063 QLSLAC Data Sheet

■ 080676 Le5711 Dual SLIC Data Sheet

■ 081047 Le5712 Dual SLIC Data Sheet

DESCRIPTION

The VoiceEdge™ family VE750 series of Line Card Access Switches (LCAS) is a family of monolithic solid-state switches that is designed to provide both power ringing access and test access on the analog line card. These devices, while not a pin-for-pin replacement for the traditional electromechanical relay (EMR) solution, provide the equivalent switching functionality. The VE750 series LCAS is meant as a solid-state alternative to

the EMRs.

The Le75181A/B device is pin-for-pin compatible with Legerity's L7581A/B device, and the Le75181C device is pin-for-pin compatible with Legerity's L8581A device.

Legerity also offers a range of compatible SLIC devices and codec/filters that can be used with the VE750 series LCAS for complete line card solutions that can be used worldwide in analog line card applications.

BLOCK DIAGRAM

Le75181A/C

^rGND

VBAI

IBAI

RBAI

TLINE

RLINE

rRINGING

RRINGING

LATCH

VDD

INPUT

DGND

Le75181B

FGND

VBAT


ORDERING INFORMATION			TBAT -1—
Device	Package Type¹	Packing²	J SW3
LE75181ABSC	16-Pin SOIC, GULL (Green)	Tube	TRINGING -¹
LE75181BBSC
LE75181CBSC

RBAT

RLINE

RRINGING

LATCH

1. The green package meets RoHS Directive 2002/95/EC of the European Council to minimize the environmental impact of electrical equipment.

2. For delivery using a tape and reel packing system, add a "T" suffix to the OPN (Ordering Part Number) when placing an order.

VDD

NPUT

TSD

DGND

NOTE: On August 3, 2007, Zarlink Semiconductor acquired the products and technology of Legerity Holdings.

Document ID# 081105 Date: Sep 18, 2007 Rev: E Version: 2

Distribution: Public Document

LE75181A PRODUCT PROFILE - Zarlink Semiconductor - #1

Decoder, Frequency divider, Packet switch, Laser diode driver, Codec