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DS2148GN Datasheet

  • DS2148GN

  • 5V E1/T1/J1 Line Interface

  • 75頁

  • DALLAS   DALLAS

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DS2148/DS21Q48
5V E1/T1/J1 Line Interface
www.maxim-ic.com
FEATURES
摟
摟
摟
摟
摟
Complete E1, T1, or J1 line interface unit
(LIU)
Supports both long- and short-haul trunks
Internal software-selectable receive-side
termination for 75鈩?100鈩?120W
5V power supply
32-bit or 128-bit crystal-less jitter attenuator
requires only a 2.048MHz master clock for
both E1 and T1 with option to use 1.544MHz
for T1
Generates the appropriate line build outs,
with and without return loss, for E1 and
DSX-1 and CSU line build outs for T1
AMI, HDB3, and B8ZS, encoding/decoding
16.384MHz, 8.192MHz, 4.096MHz, or
2.048MHz clock output synthesized to
recovered clock
Programmable monitor mode for receiver
Loopbacks and PRBS pattern generation/
detection with output for received errors
Generates/detects in-band loop codes, 1 to 16
bits including CSU loop codes
8-bit parallel or serial interface with optional
hardware mode
Multiplexed and nonmultiplexed parallel bus
supports Intel or Motorola
Detects/generates blue (AIS) alarms
NRZ/bipolar interface for TX/RX data I/O
Transmit open-circuit detection
Receive Carrier Loss (RCL) indication
(G.775)
High-Z State for TTIP and TRING
50mA (rms) current limiter
PIN DESCRIPTION
44
1
44 TQFP
摟
摟
摟
摟
摟
摟
摟
摟
摟
摟
摟
摟
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7mm
CABGA
ORDERING INFORMATION
Single-Channel Devices:
DS2148TN 44-Pin TQFP
DS2148T
44-Pin TQFP
DS2148GN 7mm CABGA
DS2148G
7mm CABGA
Four-Channel Devices:
DS21Q48N (Quad) BGA
DS21Q48
(Quad) BGA
(-40擄C to +85擄C)
(0
o
C to +70
o
C)
(-40擄C to +85擄C)
(0
o
C to +70
o
C)
(-40擄C to +85擄C)
(0
o
C to +70
o
C)
1 of 75
REV: 082504

DS2148GN 產(chǎn)品屬性

  • Maxim Integrated Products

  • Framer

  • 1

  • 125 mA

  • + 85 C

  • SMD/SMT

  • CSBGA

  • - 40 C

  • 5 V

  • 5.25 V

  • 4.75 V

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