Maxim DS33R11 specifications T1/E1/J1 Line Interface, Clock Synthesizer, Jitter Attenuator

DS33R11 Ethernet Mapper with Integrated T1/E1/J1 Transceiver

2.9T1/E1/J1 Line Interface

•Requires only a 2.048MHz master clock for both E1 and T1 operation with the option to use 1.544MHz for T1 operation

•Fully software configurable

•Short-haul and long-haul applications

•Automatic receive sensitivity adjustments

•Ranges include 0 to 43dB or 0 to 12dB for E1 applications and 0 to 13dB or 0 to 36dB for T1 applications

•Receive level indication in 2.5dB steps from -42.5dB to -2.5dB

•Internal receive termination option for 75Ω, 100Ω, and 120Ω lines

•Internal transmit termination option for 75Ω, 100Ω, and 120Ω lines

•Monitor application gain settings of 20dB, 26dB, and 32dB

•G.703 receive synchronization-signal mode

•Flexible transmit waveform generation

•T1 DSX-1 line build-outs

•T1 CSU line build-outs of -7.5dB, -15dB, and -22.5dB

•E1 waveforms include G.703 waveshapes for both 75Ω coax and 120Ω twisted cables

•AIS generation independent of loopbacks

•Alternating ones and zeros generation

•Square-wave output

•Open-drain output option

•NRZ format option

•Transmitter power-down

•Transmitter 50mA short-circuit limiter with current-limit-exceeded indication

•Transmit open-circuit-detected indication

•Line interface function can be completely decoupled from the framer/formatter

2.10Clock Synthesizer

•Output frequencies include 2.048MHz, 4.096MHz, 8.192MHz, and 16.384MHz

•Derived from recovered receive clock

2.11Jitter Attenuator

•32-bit or 128-bit crystal-less jitter attenuator

•Requires only a 2.048MHz master clock for both E1 and T1 operation with the option to use 1.544MHz for T1 operation

•Can be placed in either the receive or transmit path or disabled

•Limit trip indication

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