DS21Q48
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DS21Q48

5V、E1/T1/J1线路接口

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产品详情
特性
  • Complete E1, T1, or J1 line interface unit (LIU)
  • Supports both long- and short-haul trunks
  • Internal software-selectable receive-side termination for 75Ω/100Ω/120Ω
  • 5V power supply
  • 32-bit or 128-bit crystal-less jitter attenuator requires only a 2.048MHz master clock for both E1 and T1 with option to use 1.544MHz for T1
  • Generates the appropriate line build outs, with and without return loss, for E1 and DSX-1 and CSU line build outs for T1
  • AMI, HDB3, and B8ZS, encoding/decoding
  • 16.384MHz, 8.192MHz, 4.096MHz, or 2.048MHz clock output synthesized to recovered clock
  • Programmable monitor mode for receiver
  • Loopbacks and PRBS pattern generation/ detection with output for received errors
  • Generates/detects in-band loop codes, 1 to 16 bits including CSU loop codes
  • 8-bit parallel or serial interface with optional hardware mode
  • Multiplexed and nonmultiplexed parallel bus supports Intel or Motorola
  • Detects/generates blue (AIS) alarms
  • NRZ/bipolar interface for TX/RX data I/O
  • Transmit open-circuit detection
  • Receive Carrier Loss (RCL) indication (G.775)
  • High-Z State for TTIP and TRING
  • 50mA (rms) current limiter

产品技术资料帮助

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ADI公司所提供的资料均视为准确、可靠。但本公司不为用户在应用过程中侵犯任何专利权或第三方权利承担任何责任。技术指标的修改不再另行通知。本公司既没有含蓄的允许,也不允许借用ADI公司的专利或专利权的名义。本文出现的商标和注册商标所有权分别属于相应的公司。

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