(China (Mainland))
Product Summary
The PEB2254HV1.4 is a framing and line interface comonent.
Parametrics
PEB2254HV1.4 absolute maximum ratings: (1)Supply voltage: VDD = –0.3V to + 7.0V; (2) Input voltage: VI= -0.3 to VDD + 0.3 V (max. 7 V); (3) Output voltage: V0= -0.3 to VDD + 0.3 V (max. 7 V); (4) Storage temperature: Tstg =-65℃ to + 150℃.
Features
PEB2254HV1.4 features: (1)Analog receive and transmit circuitry for E1 signals; (2)Data and clock recovery using an integrated digital phase locked loop; (3)Low transmitter output impedance for a high return loss with reasonable protection resistors; (4)Tri-state function of the analog Transmit Line Outputs; (5)Programmable transmit pulse shape using a minimum number of external components; (6)Jitter specifications of ITU-T I.431 and G.703 met; (7)Wander and jitter attenuation/compensation clock smoothing; (8)Dual rail or single rail digital inputs and outputs; (9)Unipolar NRZ or CMI for interfacing fibre optical transmission routes; (10)Selectable line codes (HDB3, AMI); (11)Loss of signal indication with programmable thresholds according to ITU-T G.775; (12)Clock generator for jitter free system clocks and transmit clock using an digital phase locked loop; (13)Transmit line monitor; (14)Local loop and remote loop for diagnostic purposes; (15)Only one type of transformer (ratio1:√￣2) for CEPT 75/120Ω and T1 100Ω.
Diagrams
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