DEMO KIT AVAILABLE DS3150 3.3V, DS3/E3/STS-1 Line Interface Unit www.maxim-ic.com GENERAL DESCRIPTION FEATURES The DS3150 performs all the functions necessary for Integrated Transmitter, Receiver, and Jitter interfacing at the physical layer to DS3, E3, and Attenuator for DS3, E3, and STS-1 STS-1 lines. The receiver performs clock and data Performs Receive Clock/Data Recovery and recovery, B3ZS/HDB3 decoding, and loss-of-signal Transmit Waveshaping monitoring. The transmitter encodes outgoing data Jitter Attenuator Can Be Placed in the Receive and drives standards-compliant waveforms onto 75 Path or the Transmit Path coaxial cable. The jitter attenuator can be mapped AGC/Equalizer Block Handles from 0dB to into the receive path or the transmit path. 15dB of Cable Loss Interfaces to 75 Coaxial Cable at Lengths Up to 380m (DS3), 440m (E3), or 360m (STS-1) APPLICATIONS Interfaces Directly to a DSX Monitor Signal SONET/SDH and PDH Multiplexers (20dB Flat Loss) Using Built-In Preamp Digital Cross-Connects Built-In B3ZS and HDB3 Encoder/Decoder Access Concentrators ATM and Frame Relay Equipment Bipolar and NRZ Interfaces Routers Local and Remote Loopbacks 15 23 PBXs On-Board 2 - 1 and 2 - 1 Pseudorandom Bit DSLAMs Sequence (PRBS) Generator and Detector CSUs/DSUs Line Build-Out (LBO) Control Transmit Line-Driver Monitor Checks for a Faulty Transmitter or a Shorted Output ORDERING INFORMATION Complete DS3 AIS Generator (ANSI T1.107) PART TEMP RANGE PIN-PACKAGE Unframed All-Ones Generator (E3 AIS) DS3150QN -40 C to +85 C 28 PLCC Clock Inversion for Glueless Interfacing DS3150Q 0 C to +70 C 28 PLCC Tri-State Line Driver for Low-Power Mode and DS3150TN 48 TQFP -40 C to +85 C Protection Switching Applications DS3150T 48 TQFP 0 C to +70 C Loss-of-Signal (LOS) Detector (ANSI T1.231 and ITU G.775) FUNCTIONAL DIAGRAM Automatic Data Squelching During LOS Requires Minimal External Components Drop-In Replacement for TDK 78P2241/B and LINE IN RCLK RECEIVE Rx+ DS3, E3, CLOCK RPOS 78P7200L (Refer to Application Note 362) Rx- AND DATA STS-1 RNEG Pin Compatible with TDK 78P7200 3.3V Operation (5V Tolerant I/O), 110mA (max) DS3150 Industrial Temperature Range: -40 C to +85 C LIU Small Packaging: 28-Pin PLCC and 48-Pin TQFP LINE OUT TCLK TRANSMIT Tx+ DS3, E3, TPOS CLOCK Tx- Pin Configurations appear at end of data sheet. STS-1 AND DATA TNEG Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata. 1 of 28 REV: 071305 DS3150 TABLE OF CONTENTS 1. DETAILED DESCRIPTION.................................................................................................4 1.1 RECEIVER.................................................................................................................................... 7 1.2 TRANSMITTER .............................................................................................................................10 1.3 DIAGNOSTICS..............................................................................................................................15 1.4 JITTER ATTENUATOR ...................................................................................................................16 2. PIN DESCRIPTIONS ........................................................................................................17 3. ELECTRICAL CHARACTERISTICS ................................................................................21 4. PIN CONFIGURATIONS ..................................................................................................25 5. PACKAGE INFORMATION..............................................................................................26 6. REVISION HISTORY........................................................................................................28 2 of 28