L8560

Data Sheet April 2000 L8560 Low-Power SLIC with Ringing Features Description s Full-feature set for central office applications s Also ideal for ISDN terminal adapters, pair gain, and cable telephony applications s Auxiliary input for second battery, and internal switch to enable its use to save power in short telephone loops s 5 V only operation or optional ±5 V operation for reduced power consumption s Low active power (85 mW typical) and scan power (61 mW typical) with 5 V only operation s Low active power (68 mW typical with auxiliary battery) and scan power (45 mW typical) with ±5 V operation s Quiet tip/ring polarity reversal s Per-line ringing available for short loops s Reduced overhead and increased current limit during ring mode for lower-battery operation or increased ring loop length s Supports meter pulse injection s Distortion-free full duplex from 0 mA dc loop current on-hook transmission s Convenient operating states: — Forward powerup — Polarity reversal powe...