LE7942BDJC

LE7942BDJC Datasheet

Le7942B

Part	Datasheet
LE7942BDJC	LE7942BDJC (pdf)

Related Parts	Information
LE7942BDJCT	LE7942BDJCT
LE7942B-1DJCT	LE7942B-1DJCT
LE7942B-2DJCT	LE7942B-2DJCT
LE7942B-1DJC	LE7942B-1DJC
LE7942B-2DJC	LE7942B-2DJC

PDF Datasheet Preview
Voice Solution Le7942B Subscriber Line Interface Circuit VE580 Series DISTINCTIVE CHARACTERISTICS BLOCK DIAGRAM - Compatible with Le7942 Device - Tip Open state for ground-start lines - V to V battery operation - Ideal for PBX and KTS applications - On-chip switching regulator for low-power dissipation - Can be used with or without the on-chip switching regulator - On-hook transmission A TIP B RING DA DB VREG L VBAT BGND Two-Wire Interface Ground-Key Detector Signal Transmission Off-Hook Detector Power-Feed Controller Ring-Trip Detector Switching Regulator CHS QBAT CHCLK Test Relay Driver Ring Relay Driver Input Decoder and Control TESTOUT RINGOUT C1 C2 C3 C4 E1 DET GKFIL RSN VTX RD RDC CAS VCC VEE AGND/DGND 15474A-001 NOTE On August 3, 2007, Zarlink Semiconductor acquired the products and Document ID# 081195 Date Sep 19, 2007 technology of Legerity Holdings. Version 2 Distribution Public Document Le7942B Data Sheet ORDERING INFORMATION Standard Products Legerity standard products are available in several packages and operating ranges. The order number Valid Combination is formed by a combination of the elements below. Le7942B C = Commercial 0°C to 70°C * DEVICE NUMBER/DESCRIPTION Le7942B Subscriber Line Interface Circuit PLCC package PACKAGING MATERIAL Blank= Standard package D= Green package see note PERFORMANCE GRADE Blank = Standard specification = Performance Grading = Performance Grading Note The green package meets RoHS Directive 2002/95/EC of the European Council to minimize the environmental impact of electrical equipment. Valid Combinations Green Package Le7942BDJC Non-Green Package Le7942BJC Le7942B-1JC Le7942B-2JC Valid Combinations Valid Combinations lists configurations planned to be supported in volume for this device. Consult the local Legerity sales office to confirm availability of specific valid combinations, to check on newly released combinations, and to obtain additional data on Legerity’s standard products. Zarlink Semiconductor Inc. CONNECTION DIAGRAMS Top View Le7942B Data Sheet RINGOUT VCC VREG BGND B RING A TIP DB TP TESTOUT L VBAT QBAT CHS CHCLK C4 E1 4 3 2 1 32 31 30 32-Pin PLCC 14 15 16 17 18 19 20 TP DA RD HPB HPA VTX VBREF RSN AGND/DGND DET C2 C3 C1 CAS RDC GKFIL Notes Pin 1 is marked for orientation. TP is a thermal conduction pin tied to substrate QBAT . Zarlink Semiconductor Inc. Le7942B Data Sheet PIN DESCRIPTIONS Pin Names Type

PDF Datasheet Preview

Voice Solution

Le7942B

Subscriber Line Interface Circuit VE580 Series

DISTINCTIVE CHARACTERISTICS

BLOCK DIAGRAM
- Compatible with Le7942 Device - Tip Open state for ground-start lines - V to V battery operation - Ideal for PBX and KTS applications - On-chip switching regulator for low-power
dissipation - Can be used with or without the on-chip switching
regulator - On-hook transmission

A TIP

B RING

DA DB VREG

L VBAT BGND

Two-Wire Interface

Ground-Key Detector

Signal Transmission

Off-Hook Detector

Power-Feed Controller Ring-Trip Detector

Switching Regulator

CHS QBAT CHCLK

Test Relay Driver Ring Relay Driver

Input Decoder and Control

TESTOUT

RINGOUT

C1 C2 C3 C4 E1 DET GKFIL RSN VTX

RD RDC CAS

VCC VEE AGND/DGND
15474A-001

NOTE On August 3, 2007, Zarlink Semiconductor acquired the products and Document ID# 081195 Date Sep 19, 2007
technology of Legerity Holdings.

Version 2

Distribution Public Document

Le7942B

Data Sheet
ORDERING INFORMATION Standard Products

Legerity standard products are available in several packages and operating ranges. The order number Valid Combination is formed by a combination of the elements below.

Le7942B

C = Commercial 0°C to 70°C *

DEVICE NUMBER/DESCRIPTION Le7942B

Subscriber Line Interface Circuit

PLCC package

PACKAGING MATERIAL Blank= Standard package

D= Green package see note

PERFORMANCE GRADE Blank = Standard specification
= Performance Grading = Performance Grading

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

Valid Combinations

Green Package Le7942BDJC

Non-Green Package

Le7942BJC Le7942B-1JC Le7942B-2JC

Valid Combinations

Valid Combinations lists configurations planned to be supported in volume for this device. Consult the local Legerity sales office to confirm availability of specific valid combinations, to check on newly released combinations, and to obtain additional data on Legerity’s standard products.

Zarlink Semiconductor Inc.

CONNECTION DIAGRAMS Top View

Le7942B

Data Sheet

RINGOUT VCC VREG BGND B RING A TIP DB

TP TESTOUT

L VBAT QBAT

CHS CHCLK

C4 E1
4 3 2 1 32 31 30
32-Pin PLCC
14 15 16 17 18 19 20

TP DA RD HPB HPA VTX VBREF RSN AGND/DGND

DET C2 C3 C1

CAS RDC GKFIL

Notes Pin 1 is marked for orientation.

TP is a thermal conduction pin tied to substrate QBAT .

Zarlink Semiconductor Inc.

Le7942B

Data Sheet

PIN DESCRIPTIONS

Pin Names

Type

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived LE7942BDJC Datasheet file may be downloaded here without warranties.

Datasheet ID: LE7942BDJC 648986