LXT359PE Intel Corporation, LXT359PE Datasheet
LXT359PE
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LXT359PE Summary of contents
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DATA SHEET LXT359 Integrated T1 LH/SH Transceiver for DS1/DSX-1/CSU or NTU/ISDN PRI Applications General Description The LXT359 Primary rate, combination transceiver for T1 long and short-haul applications. It operates over (22 ) twisted-pair cable for 0 to ...
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... Integrated T1 LH/SH Transceiver for DS1/DSX-1/CSU or NTU/ISDN PRI Applications PIN ASSIGNMENTS AND SIGNAL DESCRIPTIONS Figure 1: LXT359 Hardware Controlled Bipolar Mode Pin Assignments n n n/c n n/c 2 LXT359PE LXT359QE 6 7 LXT359LE ...
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Table 1: LXT359 Clock and Data Pins by Mode Pin # Bipolar PLCC QFP TPOS 4 43 TNEG 6 3 RNEG 7 4 RPOS Data pins change based on whether external ...
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LXT359 Integrated T1 LH/SH Transceiver for DS1/DSX-1/CSU or NTU/ISDN PRI Applications Table 3: LXT359 Hardware Controlled Bipolar Mode Signal Descriptions Pin # Symbol I/O PLCC QFP 1 1 MCLK TCLK TPOS TNEG ...
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Table 3: LXT359 Hardware Controlled Bipolar Mode Signal Descriptions Pin # Symbol I/O PLCC QFP 11 10 JASEL 12 13 LOS TTIP TRING TGND ...
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LXT359 Integrated T1 LH/SH Transceiver for DS1/DSX-1/CSU or NTU/ISDN PRI Applications Table 3: LXT359 Hardware Controlled Bipolar Mode Signal Descriptions Pin # Symbol I/O PLCC QFP 26 36 RLOOP 27 37 LLOOP 28 38 TAOS 1. These pins do not ...
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Table 5: LXT359 Host Controlled Bipolar Mode Signal Assignments Pin # Symbol I/O PLCC QFP 5 2 MODE RNEG RPOS 9 7 TRSTE DI 10 – n/c – n/c – ...
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LXT359 Integrated T1 LH/SH Transceiver for DS1/DSX-1/CSU or NTU/ISDN PRI Applications FUNCTIONAL DESCRIPTION The LXT359 is a fully integrated PCM transceiver for long or short-haul, 1.544 Mbps (T1) applications allowing full-duplex transmission of digital data over existing twisted-pair installations. It ...
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DS1 pulses for long-haul T1 applications (set- tings from -22.5 dB). Specifications section for pulse mask specifications. Receiver A 1:1 transformer provides the interface to the twisted-pair line. Recovered data is output at RPOS/RNEG (RDATA ...
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LXT359 Integrated T1 LH/SH Transceiver for DS1/DSX-1/CSU or NTU/ISDN PRI Applications Table 6: Equalizer Control Input Settings 1 EC4 EC3 EC2 EC1 Long Haul Long Haul ...
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Diagnostic Mode Operation Diagnostic modes as shown in Table 7. In Hardware Mode, the diagnostic modes are selected by a combination of pin settings. In Host Mode, the diagnostic modes are selected by writing appropriate bits in the Diagnostic Con- ...
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LXT359 Integrated T1 LH/SH Transceiver for DS1/DSX-1/CSU or NTU/ISDN PRI Applications Loopback Modes Local Loopback See Figures 3 and 4. In Hardware Mode, Local Loopback (LLOOP) is selected by tying LLOOP High; in Host Mode, by setting CR2.ELLOOP to 1. ...
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Remote Loopback See Figure 6. In Remote Loopback (RLOOP) mode, the device ignores the transmit data and clock inputs (TCLK and TPOS/TNEG or TDATA), and bypasses the in-line encoders/decoders. The RPOS/RNEG or RDATA outputs loop back through the transmit circuits ...
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LXT359 Integrated T1 LH/SH Transceiver for DS1/DSX-1/CSU or NTU/ISDN PRI Applications Figure 8: TAOS Data Path In-Band Network Loop Up or Down Code Generator In Host Mode, LXT359 can transmit in-band Network Loop Up or Loop Down code. The Loop ...
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LXT359 Integrated T1 LH/SH Transceiver for DS1/DSX-1/CSU or NTU/ISDN PRI Applications Table 8: Control and Operational Mode Selection for LXT359 Transceiver 1 Input to Pin Mode TRSTE Hardware Low Low On Low High On Low Open On 2 Low Off ...
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LXT359 Integrated T1 LH/SH Transceiver for DS1/DSX-1/CSU or NTU/ISDN PRI Applications Host Mode Operation The LXT359 operates in Host Mode when MODE is set High. In Host Mode a microprocessor accesses and con- trols the transceiver through a data port ...
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Table 11: Control Register #1 Bit Name 0 EC1 1 EC2 2 EC3 3 EC4 4 UNIENB Enables Unipolar I/O Mode and insertion/detection of BPVs. Enables B8ZS encoders/decoders; device enters Unipolar Mode 5 ENCENB and pins and ...
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LXT359 Integrated T1 LH/SH Transceiver for DS1/DSX-1/CSU or NTU/ISDN PRI Applications Table 13: Interrupt Clear Register Bit Name 0 CLOS Clears/Masks LOS Interrupt. 1 CNLOOP Clears/Masks NLOOP Interrupt. 2 — reserved-ignore. 3 — reserved-ignore. 4 — reserved-ignore. 5 — reserved-ignore. ...
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Table 15: Performance Status Register Bit Name 0 LOS Loss of Signal (LOS) Status. 1 NLOOP Network Loop (NLOOP) Status. 2 AIS Alarm Indicator Status. 3 — reserved-ignore. 4 — reserved-ignore. 5 — reserved-ignore. 6 — reserved-ignore. 7 — reserved–ignore. ...
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LXT359 Integrated T1 LH/SH Transceiver for DS1/DSX-1/CSU or NTU/ISDN PRI Applications Serial Port Operation The LXT359 operates in Host Mode when the MODE pin is set High. Figure 9 shows the SIO data structure. The registers are accessible through a ...
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APPLICATION INFORMATION Table 18: Recommended Transformers for LXT359 Tx/Rx Turns Ratio Tx 1:2 Rx 1:1 Part Number PE-65351 Pulse Engineering PE-65771 0553-5006-IC Bell-Fuse 66Z-1308 Fil-Mag 671-5832 Midcom 67127370 Schott Corp 67130850 TD61-1205D HALO (combination Tx/Rx set) HALO (surface mount ...
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LXT359 Integrated T1 LH/SH Transceiver for DS1/DSX-1/CSU or NTU/ISDN PRI Applications Figure 10: Typical T1 LXT359 Hardware Mode Application 1.544 MHz Framer ...
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Figure 11: Typical T1 LXT359 Host Mode Application 1.544 MHz Framer 0 ...
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LXT359 Integrated T1 LH/SH Transceiver for DS1/DSX-1/CSU or NTU/ISDN PRI Applications The minimum and maximum values in Tables and Figures 12 through 18 represent the performance specifications of the LXT359 and are guaranteed by test, except where ...
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Table 21: LXT359 Digital Characteristics Parameter 1,2 High level input voltage (pins 1-4, 17, 23-25) 1,2 Low level input voltage (pins 1-4, 17, 23-25) 1,2 High level output voltage (pins 6-8, 10, 12, 23, 25) 1,2 Low level output voltage ...
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LXT359 Integrated T1 LH/SH Transceiver for DS1/DSX-1/CSU or NTU/ISDN PRI Applications Figure 12: 1.544 MHz T1 Pulse (DS1 and DSX-1) 1.5 Normalized Amplitude 1.0 DS-1 0.5 0.5 -0.5 0.0 Time (in Unit Intervals) -0.5 Table 22: 1.544 MHz T1 Pulse ...
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Table 23: Master and Transmit Clock Timing Characteristics Parameter Master clock frequency Master clock tolerance Master clock duty cycle Transmit clock frequency Transmit clock tolerance Transmit clock duty cycle TPOS/TNEG to TCLK setup time TCLK to TPOS/TNEG hold time 1. ...
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LXT359 Integrated T1 LH/SH Transceiver for DS1/DSX-1/CSU or NTU/ISDN PRI Applications Table 24: Receive Timing Characteristics for (See Figure 14) Parameter 2, 3 Receive clock duty cycle 2, 3 Receive clock pulse width Receive clock pulse width high 1,3 Receive ...
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Table 25: LXT359 Serial I/O Timing Characteristics Parameter SCLK high time SCLK rise and fall time CS falling edge to SCLK rising edge Last SCLK edge to CS rising edge CS inactive time SCLK to SDO valid time SCLK falling ...
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LXT359 Integrated T1 LH/SH Transceiver for DS1/DSX-1/CSU or NTU/ISDN PRI Applications Figure 17: Jitter Tolerance (Typical) Typical T1 Jitter Tolerance @ 36 dB Figure 18: T1 Jitter Attenuation (Typical ...
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... MECHANICAL SPECIFICATIONS Figure 19: Plastic Leaded Chip Carrier Specifications 28-Pin PLCC • Part Number LXT359PE • Extended Temperature Range (-40 ° °C) Dim C Min A 0.165 B A 0.090 1 A 0.062 2 B BSC 1 .050 C 0.026 D 0.485 D 0.450 1 F 0.013 1. BSC— ...
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LXT359 Integrated T1 LH/SH Transceiver for DS1/DSX-1/CSU or NTU/ISDN PRI Applications Figure 20: Plastic Quad Flat Pack Specifications Dim ...
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Figure 21: Low Profile Quad Flat Package Specifications E1 Dimension See JEDEC Publication for additional specifications. 44-Pin LQFP • Part Number LXT359LE • Extended Temperature ...
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LXT359 Integrated T1 LH/SH Transceiver for DS1/DSX-1/CSU or NTU/ISDN PRI Applications 34 NOTES ...
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NOTES Notes 35 ...
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Corporate Headquarters 9750 Goethe Road Sacramento, California 95827 Telephone: (916) 855-5000 Fax: (916) 854-1101 Web: www.level1.com The Americas EAST Eastern Area Headquarters & Western Area Northeastern Regional Office Headquarters 234 Littleton Road, Unit 1A 3375 Scott Blvd., #338 Westford, MA ...