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CDB61577

Cirrus Logic
Part Number CDB61577
Manufacturer Cirrus Logic
Description T1/E1 LINE INTERFACE
Published Jan 23, 2007
Detailed Description www.DataSheet4U.com CS61577 T1/E1 Line Interface Features General Description The CS61577 is a drop-in replacement for...
Datasheet PDF File CDB61577 PDF File

CDB61577
CDB61577

Overview
www.
DataSheet4U.
com CS61577 T1/E1 Line Interface Features General Description The CS61577 is a drop-in replacement for the CS61574, and combines 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.
The CS61577 supports processor-based or standalone operation and interfaces with industry standard T1 and E1 framers.
The receiver uses a digital Delay-Locked-Loop which is continuously calibrated from a crystal reference to provide excellent stability and jitter tolerance.
The receiver includes a jitter attenuator optimized for minimum delay in switching and transmission applications.
The transmitter provides internal pulse shaping to insure compliance with T1 and E1 pulse template specifications.
• Provides Analog Transmission Line Interface for T1 and E1 Applications • Drop-in Replacement for CS61574 with the Following Enhancements: - Lower Power Consumption - Transmitter Short-Circuit Current Limiting Greater Transmitter Immunity to Line Reflections Software Selection Between 75Ω and 120Ω E1 Output Options Internally Controlled E1 Pulse Width B8ZS/HDB3/AMI Encoder/Decoder ( ) = Pin Function in Host Mode [ ] = Pin Function in Extended Hardware Mode 2 R E M O T E L O O P B A C K 26 - Applications - • • Interfacing Network Equipment such as DACS and Channel Banks to a DSX-1 Cross Connect Building Channel Service Units - ORDERING INFORMATION CS61577-IP1 28 Pin Plastic DIP CS61577-IL1 28 Pin Plastic PLCC MODE 5 (CLKE) (INT) (SDI) (SDO) TAOS LEN0 LEN1 LEN2 28 23 24 25 TGND TV+ TCLK TPOS [TDATA] TNEG [TCODE] RCLK RPOS [RDATA] RNEG [BPV] 3 4 L O C A L L O O P B A C K 1 15 14 LINE DRIVER 13 16 CONTROL PULSE SHAPER LINE RECEIVER TTIP TRING 8 7 AMI, B8ZS, HDB3, CODER 19 20 17 JITTER ATTENUATOR CLOCK & DATA RECOVERY SIGNAL QUALITY MONITOR RTIP RRING MTIP [RCODE] MRING [PCS] DPM [AIS] 6 DRIVER MONITOR 22 RGND 18 11 9 10 27 LLOOP (SCLK) 12 LOS 21 RV+ RLOOP XTALIN ...


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