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CS61575 Datasheet(PDF) 1 Page - Cirrus Logic |
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CS61575 Datasheet(HTML) 1 Page - Cirrus Logic |
1 / 44 page Features • Provides Analog Transmission Line Interface for T1 and E1 Applications • Provides Line Driver, Jitter Attenuator and Clock Recovery Functions • Fully Compliant with AT&T 62411 Stratum 4 Jitter Requirements • Low Power Consumption (typically 175 mW) • B8ZS/HDB3/AMI Encoder/Decoder • 14 dB of Transmitter Return Loss General Description The CS61574A and CS61575 combine the complete analog transmit and receive line interface for T1 or E1 applications in a low power, 28-pin device operating from a +5V supply. Both devices support processor- based or stand-alone operation and interface with industry standard T1 and E1 framers. The receiver uses a digital Delay-Locked-Loop which is continuously calibrated from a crystal reference to pro- vide excellent stability and jitter tolerance. The CS61574A has a receiver jitter attenuator optimized for minimum delay in switching and transmission applica- tions, while the CS61575 attenuator is optimized for CPE applications subject to AT&T 62411 requirements. The transmitter features internal pulse shaping and a matched, constant impedance output stage to insure signal quality on mismatched, poorly terminated lines. Applications • Interfacing Network Equipment such as DACS and Channel Banks to a DSX-1 Cross Connect • Interfacing Customer Premises Equipment to a CSU • Building Channel Service Units ORDERING INFORMATION - See page 26. MAY ’96 DS154F2 1 Crystal Semiconductor Corporation P. O. Box 17847, Austin, Texas, 78760 (512) 445-7222 FAX:(512) 445-7581 T1/E1 Line Interface CS61574A CS61575 TTIP TCLK 7 RRING RTIP TRING TGND 14 CONTROL LINE RECEIVER LINE DRIVER 15 3 2 6 4 RCLK 8 27 LLOOP (SCLK) 25 24 (INT) LEN0 (SDI) LEN1 (SDO) LEN2 28 23 (CLKE) TAOS 5 MODE TPOS [TDATA] RPOS [RDATA] RNEG [BPV] TNEG [TCODE] MTIP [RCODE] DPM [AIS] LOS 12 21 RV+ 22 RGND 13 19 20 17 11 18 16 MRING [PCS] XTALIN 9 XTALOUT 10 ACLKI 1 ( ) = Pin Function in Host Mode [ ] = Pin Function in Extended Hardware Mode 26 RLOOP (CS) R E M O T E L O O P B A C K AMI, B8ZS, HDB3, CODER JITTER ATTENUATOR PULSE SHAPER CLOCK & DATA RECOVERY SIGNAL QUALITY MONITOR DRIVER MONITOR TV+ L O C A L L O O P B A C K Copyright © Crystal Semiconductor Corporation 1996 (All Rights Reserved) |
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