DS3150
3.3V, DS3/E3/STS-1 Line Interface Unit
Industry's First Single-Port T3/E3 LIU with Fully Integrated Jitter Attenuator
Status
Active: In Production.
Description
The DS3150 performs all the functions necessary for
interfacing at the physical layer to DS3, E3, and
STS-1 lines. The receiver performs clock and data
recovery, B3ZS/HDB3 decoding, and loss-of-signal
monitoring. The transmitter encodes outgoing data
and drives standards-compliant waveforms onto 75Ω coaxial cable. The jitter attenuator can be mapped
into the receive path or the transmit path.
An evaluation kit is available:
DS3150DK
Key Features
Applications/Uses
Integrated Transmitter, Receiver, and Jitter
Attenuator for DS3, E3, and STS-1
Performs Receive Clock/Data Recovery and
Transmit Waveshaping
Jitter Attenuator Can Be Placed in the Receive
Path or the Transmit Path
AGC/Equalizer Block Handles from 0dB to
15dB of Cable Loss
Interfaces to 75Ω Coaxial Cable at Lengths Up to
380m (DS3), 440m (E3), or 360m (STS-1)
Interfaces Directly to a DSX Monitor Signal
(20dB Flat Loss) Using Built-In Preamp
Built-In B3ZS and HDB3 Encoder/Decoder
Bipolar and NRZ Interfaces
Local and Remote Loopbacks
On-Board 215 - 1 and 223 - 1 Pseudorandom Bit
Sequence (PRBS) Generator and Detector
Line Build-Out (LBO) Control
Transmit Line-Driver Monitor Checks for a
Faulty Transmitter or a Shorted Output
Complete DS3 AIS Generator (ANSI T1.107)
Unframed All-Ones Generator (E3 AIS)
Clock Inversion for Glueless Interfacing
Tri-State Line Driver for Low-Power Mode and
Protection Switching Applications
Loss-of-Signal (LOS) Detector (ANSI T1.231
and ITU G.775)
Automatic Data Squelching During LOS
Requires Minimal External Components
Drop-In Replacement for TDK 78P2241/B and
78P7200L (Refer to Application Note 362 )
Pin Compatible with TDK 78P7200
3.3V Operation (5V Tolerant I/O), 110mA (max)
Industrial Temperature Range: -40°C to +85°C
Small Packaging: 28-Pin PLCC and
48-Pin TQFP
Diagram
Functional Diagram
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2005-07-15
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