DS21348 Dallas Semiconducotr, DS21348 Datasheet

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DS21348

Manufacturer Part Number
DS21348
Description
3.3V E1/T1/J1 Line Interface
Manufacturer
Dallas Semiconducotr
Datasheet

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FEATURES
§ Complete E1, T1, or J1 line interface unit
§ Supports both long-haul and short-haul
§ Internal software-selectable receive-side
§ 3.3V power supply
§ 32-bit or 128-bit crystal-less jitter attenuator
§ Generates the appropriate line build-outs,
§ AMI, HDB3, and B8ZS, encoding/decoding
§ 16.384MHz, 8.192MHz, 4.096MHz, or
§ Programmable monitor mode for receiver
§ Loopbacks and PRBS pattern generation/
§ Generates/detects in-band loop codes, 1 to 16
§ 8-bit parallel or serial interface with optional
§ Muxed and nonmuxed parallel bus supports
§ Detects/generates blue (AIS) alarms
§ NRZ/bipolar interface for TX/RX data I/O
§ Transmit open-circuit detection
§ Receive Carrier Loss (RCL) indication
§ High-Z State for TTIP and TRING
§ 50mA (rms) current limiter
www.maxim-ic.com
(LIU)
trunks
termination for 75Ω/100Ω/120W
requires only a 2.048MHz master clock for
both E1 and T1 with option to use 1.544MHz
for T1
with and without return loss, for E1 and
DSX-1 and CSU line build-outs for T1
2.048MHz clock output synthesized to
recovered clock
detection with output for received errors
bits including CSU loop codes
hardware mode
Intel or Motorola
(G.775)
1 of 73
3.3V E1/T1/J1 Line Interface
PIN DESCRIPTION
ORDERING INFORMATION
DS21348TN 44-Pin TQFP
DS21348T
DS21348GN 7mm CABGA (-40°C to +85°C)
DS21348G
DS21Q348N (Quad) BGA
DS21Q348
1
44
44 TQFP
CABGA
7 mm
44-Pin TQFP
7mm CABGA
(Quad) BGA
DS21348/Q348
(-40°C to +85°C)
(0
(0
(-40°C to +85°C)
(0
o
o
o
C to +70
C to +70
C to +70
111501
o
o
C)
C)
o
C)

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