bd870 Zarlink Semiconductor, bd870 Datasheet

bd870

Manufacturer Part Number

bd870

Description

Built On The Legerity High Voltage Process

Manufacturer

Zarlink Semiconductor

Datasheet

1.BD870.pdf (2 pages)

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• Asymmetrical

• G.lite Line Drivers

• HDSL, HDSL2,

• DSLAM, CO, DLC,

Digital Subscriber

Loop (ADSL,

ADSL+, ADSL2,

ADSL2+) Line

Drivers

HDSL4, SHDSL Line

Drivers

BLC, MDU/MTU

Line Drivers

R O D U C T

P P L I C A T I O N S

Le87220 Device

w w w . L e g e r i t y . c o m

R I E F

is built on the Legerity high

voltage process that allows

for direct operation from a

standard telecom, negative

battery supply (and a 3.3-V

supply). In contrast, today’s

typical line cards supply the

power to the line drivers

locally, via DC-to-DC

converter modules. The

elimination of these

additional modules translates

into cost and power savings

at the system level.

centralized source of power

makes the BD870 Series a

unique, less costly, more

efficient solution for xDSL

line driver applications.

The BD870 Series device

Operation from a

V E R V I E W

DDWNP1

DDWNN1

DDWNP2

DDWNN2

Y S T E M

AGND

VCC

• Two-channel differential

• Low power

• Operates directly from the

• Integrated lightning and

• Minimum external com-

• Internal gain setting

• Capable to drive 20 dBm in

• Thermal shutdown

• Small footprint

line driver

typical telecom power

supply without a DC-DC

converter

surge protection

ponent count

resistors

to 100-Ohm load

CONTROL

LOGIC1

E A T U R E S

L O C K

–

B D 8 7 0 S

I A G R A M

–

BIAS

CONTROL

LOGIC2

• Saves doard density

• Low power dissipation

• Lowers cost and board

• More robust solution with

• Lowest BOM cost in the

• Saves cost and system

• Fully ADSL2+ capable

• Protection at board level

• Saves board density for

density

lower cost

industry

complexity, easier layout

large line card applications

FEATURING

BGND

VBAT

AY1

BY1

AY2

BY2

E N E F I T S

E R I E S

VOICE SOLUTIONS

Related parts for bd870

bd870 Summary of contents

Page 1

... DSLAM, CO, DLC, at the system level. Operation from a BLC, MDU/MTU centralized source of power Line Drivers makes the BD870 Series a unique, less costly, more efficient solution for xDSL line driver applications. Le87220 Device ...

Page 2

... V backplane battery supply, making the Legerity BatteryDirect line driver the most cost-effective total solution in the industry. BD870 Series Devices FEATURING Legerity was acquired on August 3, 2007 by Zarlink Semiconductor and was incorporated into the Wired Communications product group which also includes Zarlink's timing, synchronization, voice processing and hands free products ...

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