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LXT301Z Dataheets PDF



Part Number LXT301Z
Manufacturers Intel
Logo Intel
Description (LXT300Z / LXT301Z) Advanced T1/E1 Short-Haul Transceivers
Datasheet LXT301Z DatasheetLXT301Z Datasheet (PDF)

w w w .D a S a t . U LXT300Z/LXT301Z 4 t e T1/E1 Short-Haul Transceivers Advanced e h m o c Datasheet The LXT300Z and LXT301Z are fully integrated transceivers for both North American 1.544 Mbps (T1) and International 2.048 Mbps (E1) applications. They are pin and functionally compatible with standard LXT300/301 devices, with some circuit enhancements. The LXT300Z provides receive jitter attenuation starting at 3 Hz, and is microprocessor controllable through a serial interface. The LXT.

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w w w .D a S a t . U LXT300Z/LXT301Z 4 t e T1/E1 Short-Haul Transceivers Advanced e h m o c Datasheet The LXT300Z and LXT301Z are fully integrated transceivers for both North American 1.544 Mbps (T1) and International 2.048 Mbps (E1) applications. They are pin and functionally compatible with standard LXT300/301 devices, with some circuit enhancements. The LXT300Z provides receive jitter attenuation starting at 3 Hz, and is microprocessor controllable through a serial interface. The LXT301Z is pin compatible, but does not provide jitter attenuation or a serial interface. An advanced transmit driver architecture provides constant low output impedance for both marks and spaces, for improved Bit Error Rate performance over various cable network configurations. Both transceivers offer a variety of diagnostic features including transmit and receive monitoring. Clock inputs may be derived from an on-chip crystal oscillator or from digital inputs. They use an advanced double-poly, double-metal CMOS process and require only a single 5-volt power supply. Applications s s s s PCM/Voice Channel Banks Data Channel Bank/Concentrator T1/E1 multiplexers Digital Access and Cross-connect Systems (DACS) s s s s Product Features s s s s s s w Data recovery and clock recovery functions Receive jitter attenuation starting at 3 Hz exceeds AT&T Pub 62411, Pub 43801, Pub 43802, ITU G.703, and ITU G.823 (LXT300Z only) Line driver with constant low mark and space impedance (3 Ω typical) Minimum receive signal of 500 mV Adaptive and selectable (E1/DSX-1) slicer levels for improved SNR Programmable transmit equalizer shapes pulses to meet DSX-1 pulse template from 0 to 655 feet or drive 120 Ω twisted pair or 75 Ω coax cable for E1 w w .D t a S a e h s s s s s s s Computer to PBX interfaces (CPI & DMI) High-speed data transmission lines Interfacing Customer Premises Equipment to a CSU Digital Loop Carrier (DLC) terminals t e U 4 .c m o Local and remote loopback functions Digital Transmit Driver Monitor Digital Receive Monitor with Loss of Signal (LOS) output and first mark reset Receiver jitter tolerance 0.4 UI from 40 kHz to 100 kHz Microprocessor controllable (LXT300Z only) Compatible with most popular PCM framers Available in 28-pin DIP or PLCC As of January 15, 2001, this document replaces the Level One document LXT300Z/LXT301Z — Advanced T1/E1 Short-Haul Transceivers. w w w .D at h S a t e e 4U . m o c Order Number: 249066-001 January 2001 Information in this document is provided in connection with Intel® products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Intel’s Terms and Conditions of Sale for such products, Intel assumes no liability whatsoever, and Intel disclaims any express or implied warranty, relating to sale and/or use of Intel products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right. Intel products are not intended for use in medical, life saving, or life sustaining applications. Intel may make changes to specifications and product descriptions at any time, without notice. Designers must not rely on the absence or characteristics of any features or instructions marked "reserved" or "undefined." Intel reserves these for future definition and shall have no responsibility whatsoever for conflicts or incompatibilities arising from future changes to them. The LXT300Z/LXT301Z may contain design defects or errors known as errata which may cause the product to deviate from published specifications. Current characterized errata are available on request. Contact your local Intel sales office or your distributor to obtain the latest specifications and before placing your product order. Copies of documents which have an ordering number and are referenced in this document, or other Intel literature may be obtained by calling 1-800548-4725 or by visiting Intel’s website at http://www.intel.com. Copyright © Intel Corporation, 2001 *Third-party brands and names are the property of their respective owners. Datasheet Advanced T1/E1 Short-Haul Transceivers — LXT300Z/LXT301Z Contents 1.0 2.0 Pin Assignments and Signal Descriptions ...................................................... 6 Functional Description............................................................................................. 9 2.1 2.2 Power Requirements............................................................................................. 9 2.1.1 Reset Operation (LXT300Z and LXT301Z) ..............................................9 Receiver ..............................................................................................................10 2.2.1 Receive (Loss of Signal) Monitor ...........................................................11 2.2.2 Jitter Attenuation (LXT300Z Only)..


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