Data Sheet May 2001 L8576B Dual Ringing SLIC Features s Two SLIC channels for multiple tip/ring interfaces s On-chip balanced ringing generator, no ring relay required s Single battery operation or optional automatic bat- tery switch s Quiet battery reversal for on-hook signaling s Disconnect state s Distortion-free, on-hook transmission s 24 mA loop current limiter s Ring trip detector s Switchhook detector s Immune to channel crosstalk and impulse noise s Allows rail overvoltages for ease of protection s Thermal protection s 44-pin, surface-mount, plastic package (PLCC) Applications s POTS for ISDN s Terminal adapters (TA) s Digital loop carrier (DLC) systems s PABX Description The Ager...

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