Datasheet > LE79Q2281DVC

LE79Q2281DVC

更新时间： 2024-11-30 21:17:07

品牌	Logo	应用领域
美国微芯 - MICROCHIP		PC 电信电信集成电路
页数	文件大小	规格书
38页	809K
描述
PCM Codec, A/MU-Law, 1-Func, CMOS, PQFP64

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技术参数
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LE79Q2281DVC 技术参数

生命周期：	Active	包装说明：	TFQFP,
Reach Compliance Code：	compliant	风险等级：	5.66
压伸定律：	A/MU-LAW	滤波器：	YES
JESD-30 代码：	S-PQFP-G64	长度：	10 mm
功能数量：	1	端子数量：	64
工作模式：	SYNCHRONOUS	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	TFQFP	封装形状：	SQUARE
封装形式：	FLATPACK, THIN PROFILE, FINE PITCH	座面最大高度：	1.2 mm
标称供电电压：	3.3 V	表面贴装：	YES
技术：	CMOS	电信集成电路类型：	PCM CODEC
温度等级：	INDUSTRIAL	端子形式：	GULL WING
端子节距：	0.5 mm	端子位置：	QUAD
宽度：	10 mm	Base Number Matches：	1

LE79Q2281DVC 数据手册

™

Le79228

Quad Intelligent Subscriber Line Audio-processing Circuit

VE790 Series

Voice Solution

APPLICATIONS

ORDERING INFORMATION

Package¹

64-pin TQFP (Green)

80-pin LQFP (Green)

Packing²

Voice over IP/DSL — Integrated Access Devices (IAD),

Smart Residential Gateways (SRG), Home Gateway/

Router

Device

Le79Q2281DVC

Le79Q2284MVC

Tray

Cable Telephony — NIU, Set-Top Box, Home Side

Box, Cable Modem, Cable PC

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

European Council to minimize the environmental impact of

electrical equipment.

Fiber — Fiber in the Loop (FITL), Fiber to the

Home (FTTH)

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

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

Wireless Local Loop, Intelligent PBX

DLC-MUX

DESCRIPTION

The Le79228 Quad Intelligent Subscriber Line Audio-

processing Circuit (ISLAC™) device, in combination with a

VE790 series ISLIC™ device, implements a four-channel

universal telephone line interface. This enables the design of a

single, low cost, high performance, fully software

programmable line interface for multiple country applications.

All AC, DC, and signaling parameters are fully programmable

via microprocessor or GCI interfaces. Additionally, the

Le79228 Quad ISLAC device has integrated self-test and line-

test capabilities to resolve faults to the line or line circuit. The

integrated test capability is crucial for remote applications

where dedicated test hardware is not cost effective.

FEATURES

High performance digital signal processor provides

programmable control of all major line card functions

— A-law/µ-law and linear codec/filter

–

Transmit and receive gain

Two-wire AC impedance

Transhybrid balance

Equalization

— DC loop feeding

RELATED LITERATURE

–

Smooth or abrupt polarity reversal

— Loop supervision

081237 Le79232 Dual ISLIC™ Device Data Sheet

081152 Le79242 Dual ISLIC™ Device Data Sheet

081185 Le79252 Dual ISLIC™ Device Data Sheet

081191 Le75282 Dual LCAS Device Data Sheet

080923 Le792x2 Le79228 Chip Set User’s Guide

081151 Le79112 VCP Device Data Sheet

–

Off-hook debounce circuit

Ground-key and ring-trip filters

— Internal ringing generation and integrated ring-trip

detection

— Adaptive hybrid balance

— Line and circuit testing

–

Meets GR-909 and GR-844 test requirements

BLOCK DIAGRAM

— Tone generation (DTMF, FSK, random noise, and

arbitrary tone)

VCCA

— Metering generation at 12 kHz and 16 kHz

VCCD

LD1

–

Envelope shaping and level control

LD2

DGND

Dual ISLIC

VREF

— Modem Tone Detection

Selectable PCM/MPI or GCI digital interfaces

Protection

and LCAS or

EMR for

I/O1 - I/O4

TSCA/G

TSCB

AGND

External Ringing

— Supports most available master clock frequencies from

DRA/DD

P1-P3

LD3

Dual ISLIC

512 kHz to 8.192 MHz

DRB

LD4

Quad ISLAC

DXB

General purpose I/O pins

+3.3 V DC operation

RREF

DXA/DU

DCLK/S0

External

Ringing

Sense

PCLK/FS

Exceeds LSSGR and ITU requirements

Supports external ringing with on-chip ring-trip circuit

— Automatic or manual ring-trip modes

Resistors

MCLK

RSHB

RSLB

RSPB

FS/DCL

BATH

CS/RST

DIO/S1

INT

BATL

BATP

Supports CallerNumber Identification (CID) tone

generation

Document ID# 081256 Date:

Sep 19, 2007

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

technology of Legerity Holdings.

Rev:

Version:

Distribution:

Protected Document

12 3 4 5 6 7...38

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与LE79Q2281DVC相关器件

型号	品牌	获取价格	描述	数据表
LE79Q2281DVCT	MICROCHIP	获取价格	PCM Codec, A/MU-Law, 1-Func, CMOS, PQFP64
LE79Q2284MVC	ZARLINK	获取价格	PCM Codec, A/MU-Law, 1-Func, CMOS, PQFP80, 12 X 12 MM, 1.40 MM HEIGHT, GREEN, LQFP-80
LE79Q2284MVC	MICROCHIP	获取价格	PCM Codec, A/MU-Law, 1-Func, CMOS, PQFP80
LE79Q2284MVCT	ZARLINK	获取价格	PCM Codec, A/MU-Law, 1-Func, CMOS, PQFP80, 12 X 12 MM, 1.40 MM HEIGHT, GREEN, LQFP-80
LE79R1011JC	ZARLINK	获取价格	SLIC, Bipolar, PQCC32, PLASTIC, LCC-32
LE79R1012JC	ZARLINK	获取价格	SLIC, Bipolar, PQCC32, PLASTIC, LCC-32
LE79R1013JC	ZARLINK	获取价格	SLIC, Bipolar, PQCC32, PLASTIC, LCC-32
LE79R1014JC	ZARLINK	获取价格	SLIC, Bipolar, PQCC32, PLASTIC, LCC-32
LE79R240JC	MICROSEMI	获取价格	SLIC, Bipolar, PQCC32, PLASTIC, LCC-32
LE79R240QC	MICROSEMI	获取价格	SLIC, Bipolar, CQCC32, 8 X 8 MM, QFN-32

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