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DS2154LN Datasheet

  • DS2154LN

  • Enhanced E1 Single Chip Transceiver

  • 1103.06KB

  • 87頁

  • DALLAS   DALLAS

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DS2154
Enhanced E1 Single Chip Transceiver
www.dalsemi.com
FEATURES
Complete E1(CEPT) PCM-30/ISDN-PRI
transceiver functionality
Onboard long- and short-haul line interface for
clock/data recovery and waveshaping
32-bit or 128-bit crystal-less jitter attenuator
Generates line build outs for both 120鈩?and
75鈩?lines
Frames to FAS, CAS, and CRC4 formats
Dual onboard two-frame elastic store slip buffers
that can connect to asynchronous backplanes up to
8.192 MHz
8-bit parallel control port that can be used directly
on either multiplexed or non-multiplexed buses
Extracts and inserts CAS signaling
Detects and generates Remote and AIS alarms
Programmable output clocks for Fractional E1,
H0, and H12 applications
Fully independent transmit and receive
functionality
Full access to both Si and Sa bits aligned with
CRC multiframe
Four separate loopbacks for testing functions
Large counters for bipolar and code violations,
CRC4 codeword errors, FAS errors, and E bits
Pin compatible with DS2152 T1 Enhanced Single-
Chip Transceiver
5V supply; low power CMOS
100-pin 14mm
2
body LQFP package
PACKAGE OUTLINE
100
1
ORDERING INFORMATION
DS2154L
DS2154LN
(0擄C to 70擄C)
(-40擄C to +85擄C)
DESCRIPTION
The DS2154 Enhanced Single-Chip Transceiver (ESCT) contains all of the necessary functions for
connection to E1 lines. The device is an upward compatible version of the DS2153 Single-Chip
Transceiver. The onboard clock/data recovery circuitry coverts the AMI/HDB3 E1 waveforms to a NRZ
serial stream. The DS2154 automatically adjusts to E1 22AWG (0.6 mm) twisted-pair cables from 0 to
over 2 km in length. The device can generate the necessary G.703 waveshapes for both 75-ohm coax and
120-ohm twisted cables. The onboard jitter attenuator (selectable to either 32 bits or 128 bits) can be
placed in either the transmit or receive data paths. The framer locates the frame and multiframe
boundaries and monitors the data stream for alarms. It is also used for extracting and inserting signaling
data, Si, and Sa bit information. The device contains a set of internal registers which the user can access
to control the operation of the unit. Quick access via the parallel control port allows a single controller to
handle many E1 lines. The device fully meets all of the latest E1 specifications including ITU G.703,
G.704, G.706, G.823, G.932, and I.431 as well as ETS 300 011, 300 233, 300 166, TBR 12 and TBR 13.
1 of 87
112099

DS2154LN 產(chǎn)品屬性

  • Lead (SnPb) Finish for COTS

  • 90

  • 集成電路 (IC)

  • 接口 - 驅(qū)動器，接收器，收發(fā)器

  • -

  • 收發(fā)器

  • 1/1

  • E1

  • 4.75 V ~ 5.25 V

  • 表面貼裝

  • 100-LQFP

  • 100-LQFP（14x14）

  • 管件

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