DS2148TN

DS2148TN Description  
The Analog Devices DS2148TN is a diagnostic-enabled telecom interface IC for short- and long-haul use.
The DS2148TN meets all the latest E1 and T1 specifications, and its acceptance sensitivity is automatically adjusted to the input signal.
The DS2148TN is specified for operation from -40°C to 85°C.   DS2148TN
Features    Complete E1, T1, or J1 Line Interface Unit (LIU)  ƒSupports 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   DS2148TN Applications   Routers  Channel Service Units (CSUs)  Data Service Units (DSUs)  Muxes  Switches  Channel Banks  T1/E1 Test Equipment