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Burr-Brown Corporation - HDSL/MDSL ANALOG FRONT END

Numéro de référence AFE1105E
Description HDSL/MDSL ANALOG FRONT END
Fabricant Burr-Brown Corporation 
Logo Burr-Brown Corporation 





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AFE1105E fiche technique
® AFE1105
AFE1105
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
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 Metalink MtH1210B HDSL digital signal proces-
sor to an external compromise hybrid and a 1:2.3
HDSL line transformer. All internal filter responses as
well as the pulse former output scale with clock
frequency—allowing the AFE1105 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 MtH1210B.
The HDSL Analog Interface is a monolithic device
fabricated on 0.6µCMOS. It operates on a single +5V
supply. It is housed in a 48-pin SSOP package.
Pulse
Former
Line
Driver
txLINEP
txLINEN
PLLOUT
PLLIN
txDAT
txCLK
rxSYNC
rxLOOP
rxGAIN
rxD13 - rxD0
2
14
Transmit
Control
Receive
Control
Decimation
Filter
Voltage
Reference
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-1346
Printed in U.S.A. September, 1996

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