Description
The CS61880 is a full-featured Octal E1 short-haul LIU that supports 2.048 Mbps data transmission for both E1 75 Ω and E1 120 Ω applications. Each channel provides crystal-less jitter attenuation that complies with the most stringent standards. Each channel also provides internal AMI/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.

Features
■ Octal E1 Short-haul Line Interface Unit
■ Low Power
■ No External Component Changes for 120 Ω / 75 Ω Operation
■ Pulse Shapes can be customized by the user
■ Internal AMI, or HDB3 Encoding/Decoding
■ LOS Detection per ITU G.775 or ETSI 300- 233
■ G.772 Non-Intrusive Monitoring
■ G.703 BITS Clock Recovery
■ Crystal-less Jitter Attenuation
■ Serial/Parallel Microprocessor Control Interfaces
■ Transmitter Short Circuit Current Limiter (<50 mA)
■ TX Drivers with Fast High-Z and Power Down
■ JTAG Boundary Scan compliant to IEEE 1149.1
■ 144-Pin LQFP or 160-Pin FBGA Package