
STMicroelectronics
DESCRIPTION
The SLIC KIT (L3000N/L3092) is a set of solid state devices designed to integrate many of the functions needed to interface a telephone line. It consists of 2 integrated devices ; the L3000N line interface circuit and the L3092 control unit.
■ PROGRAMMABLE DC FEED RESISTANCE AND LIMITING CURRENT (25/40/60mA)
■ LOW ON-HOOK POWER DISSIPATION (50mW typ)
■ SIGNALLING FUNCTION (off-hook/GND-Key)
■ QUICK OFF-HOOK DETECTION IN CVS FOR LOW DISTORTION (< 1 %) DIAL PULSE DETECTION
■ HYBRID FUNCTION
■ RINGING GENERATION WITH QUASI ZERO OUTPUT IMPEDANCE, ZERO CROSSING INJECTION (no ext. relay needed) AND RING TRIP DETECTION
■ ABSOLUTELY NO NOISE INJECTED ON ADIACENT LINES DURING RINGING SEQUENCE
■ AUTOMATIC RINGING STOP WHEN OFFHOOK IS DETECTED
■ TEST MODE ALLOWS LINE LENGHT MEASUREMENT
■ PARALLEL LATCHED DIGITAL INTERFACE
■ LOW NUMBER OF EXTERNAL COMPONENTS WITH STANDARD TOLERANCE ONLY : 9 1% RESISTORS AND 5 10-20% CAPACITORS (for 600 ohm appl.)
■ POSSIBILITY TO WORK ALSO WITH HIGH COMMON MODE CURRENTS
■ GOOD REJECTION OF THE NOISE ON BATTERY VOLTAGE (20dB at 10Hz ; 35dB at 1KHz)
■ INTEGRATED THERMAL PROTECTION
■ SURFACE MOUNT PACKAGE (PLCC28 + PowerSO-20)
■ 0°C TO 70°C: L3000N/L3092
■ -40°C TO +85°C: L3000NT/L3092T