CS61304A Datasheet | Cirrus Logic

Features General Description The CS61304A bines the plete analog transmit and receive line interface for T1 or E1 applications in a low power, 28-pin device operating from a +5V supply. The CS61304A is a pin-patible replacement for the LXT304A. The receiver uses a digital Delay-Locked-Loop which is continuously calibrated from a crystal reference to provide excellent stability and jitter tolerance. The CS61304A has a receiver jitter attenuator optimized for T1 CPE applications subject to AT&T 62411 and E1 ISDN PRI applications. The transmitter features internal pulse shaping and a low impedance output stage allowing the use of external resistors for transmitter impedance matching. - Provides Analog Transmission Line Interface for T1 and E1 Applications - Provides Line Driver, Jitter Attenuator and Clock Recovery Functions - Fully pliant with AT&T 62411 Stratum 4, Type II Jitter Requirements - Low Power Consumption - B8ZS/HDB3/AMI Encoder/Decoder - 50 m A Transmitter Short-Circuit Current Limiting ( ) = Pin Function in Host Mode [ ] = Pin Function in Extended Hardware Mode 2 TCLK TPOS [TDATA] TNEG [TCODE] RCLK RPOS [RDATA] RNEG [BPV] 3 R E M O T E L O O P B A C K 26 Applications - - Primary Rate ISDN Network/Termination Equipment Channel Service Units ORDERING INFORMATION See page 31. MODE 5 L O C A L L O O P B A C K (CLKE) (INT) (SDI) (SDO) TAOS LEN0 LEN1 LEN2 28 23 24 25 TGND TV+ 14 15 LINE DRIVER 13 TTIP 16 TRING CONTROL PULSE SHAPER LINE RECEIVER 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] DRIVER MONITOR 22 RGND 18 11 27 LLOOP...