LT1684 - Linear Technology

LT1684 Micropower Ring Tone Generator

LT1684 Micropower Ring Tone Generator FEATURES s s DESCRIPTIO s s s s s s s s s Allows Dynamic Control of Output Frequency, Cadence, Amplitude and DC Offset Active Tracking Supply Configuration Allows Linear Generation of Ring Tone Signal No High Voltage Post-Filtering Required Capacitive Isolation Eliminates Optocouplers Low Distortion Output Meets In.

Features

s s DESCRIPTIO s s s s s s s s s Allows Dynamic Control of Output Frequency, Cadence, Amplitude and DC Offset Active Tracking Supply Configuration Allows Linear Generation of Ring Tone Signal No High Voltage Post-Filtering Required Capacitive Isolation Eliminates Optocouplers Low Distortion Output Meets International PTT Requirements Differential Input Signal for Noise Immunity User Adjustable Active Output Current Limit Powered Directly From High Voltage Ringer Supply—No Additional Supplies Necessary Supply Current: < 1mA 2% Signal Amplitude Reference Available in 14-Pin SO and DIP Packa.