Product Summary

The CS61884-IR is a full-featured Octal E1/T1/J1 shorthaul LIU that supports both 1.544 Mbps or 2.048 Mbps data transmission. The CS61884-IR provides crystal-less jitter attenuation that complies with the most stringent standards. Each channel also provides internal AMI/B8ZS/HDB3 encoding/decoding. To support enhanced system diagnostics, channel zero can be configured for G.772 non-intrusive monitoring of any of the other 7 channels’ receive or transmit paths.

Parametrics

CS61884-IR absolute maximum ratings: (1)DC Supply, (referenced to RGND = TGND = 0V), RV+: 4.0V; TV+: 4.0V; (2)DC Supply, VCCIO: -0.5 to 4.6 V; (3)Input Voltage, Any Digital Pin except CBLSEL, MODE and LOOP(n) pins (referenced to GNDIO = 0V), VIH: GNDIO -0.5 to 5.3 V; (4)Input Voltage CBLSEL, MODE & LOOP(n) Pins (referenced to GNDIO = 0V), VIH: GNDIO -0.5 to VCCIO +0.5 V; (5)Input voltage, RTIP and RRING Pins: TGND -0.5 to TV+ +0.5 V; (6)ESD voltage, Any pin Note 1: 2kV; (7)Input current, Any Pin Note 2 IIH: -10 to +10 mA; (8)Maximum Power Dissipation, In package Pp: 1.73 W; (9)Ambient Operating Temperature TA: -40 to 85℃; (10)Storage Temperature Tstg: -65 to 150℃.

Features

CS61884-IR features: (1)Industry Standard Footprint; (2)Octal E1/T1/J1 Short-haul Line Interface Unit; (3)Low Power; (4)No External Component Changes for 100 Ω/120 Ω/75 Ω Operation; (5)Pulse Shapes can be customized by the user; (6)Internal AMI, B8ZS, or HDB3 Encoding/Decoding; (7)LOS Detection per T1.231, ITU G.775, ETSI 300-233; (8)G.772 Non-Intrusive Monitoring; (9)G.703 BITS Clock Recovery; (10)Crystal-less Jitter Attenuation; (11)Serial/Parallel Microprocessor Control Interfaces; (12)Transmitter Short Circuit Current Limiter (<50mA); (13)TX Drivers with Fast High-Z and Power Down; (14)JTAG Boundary Scan compliant to IEEE 1149.1; (15)144-Pin LQFP or 160-Pin BGA Package.

Diagrams

CS61884-IB pin connection

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