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Burr-Brown Corporation - HDSL/MDSL ANALOG FRONT END

Numéro de référence AFE1103E
Description HDSL/MDSL ANALOG FRONT END
Fabricant Burr-Brown Corporation 
Logo Burr-Brown Corporation 





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AFE1103E fiche technique
®
AFE1103
AFE1103
HDSL/MDSL ANALOG FRONT END
FEATURES
q COMPLETE ANALOG INTERFACE
q T1, E1, AND MDSL OPERATION
q CLOCK SCALEABLE SPEED
q SINGLE CHIP SOLUTION
q +5V ONLY (5V OR 3.3V DIGITAL)
q 250mW POWER DISSIPATION
q 48-PIN SSOP
q –40°C TO +85°C OPERATION
q SECOND SOURCED BY BROOKTREE
Bt8921
DESCRIPTION
Burr-Brown’s Analog Front End greatly reduces the
size and cost of an HDSL or MDSL system by provid-
ing all of the active analog circuitry needed to connect
the Brooktree Bt8952 HDSL digital signal processor
to an external compromise hybrid and a 1:2 HDSL line
transformer. All internal filter responses as well as the
pulse former output scale with clock frequency—
allowing the AFE1103 to operate over a range of bit
rates from 196kbps to 1.168Mbps.
Functionally, this unit is separated into a transmit and
a receive section. The transmit section generates, fil-
ters, and buffers outgoing 2B1Q data. The receive
section filters and digitizes the symbol data received
on the telephone line and passes it to the Bt8952. The
HDSL Analog Interface is a monolithic device fabri-
cated on 0.6µCMOS. It operates on a single +5V
supply. It is housed in a 48-pin SSOP package. This
unit is second sourced by Brooktree’s Bt8921.
PLLOUT
PLLIN
txDATP
txDATN
txCLK
rxSYNC
rxLOOP
rxGAIN
rxD13 - rxD0
2
14
Pulse
Former
Transmit
Control
Receive
Control
Decimation
Filter
Line
Driver
Voltage
Reference
txLINEP
txLINEN
REFP
VCM
REFN
Delta-Sigma
Modulator
rxLINEP
rxLINEN
rxHYBP
rxHYBN
Patents Pending
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111
Internet: http://www.burr-brown.com/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
©1996 Burr-Brown Corporation
PDS-11330A
APriFnteEd 1in 1U.0S.A3. August, 1996
®

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