M1025B5 Datasheet | SGS-Ates Componenti

~s INTEGRATED CIRCUIT M1025 r L t30-CHANNEL REMOTE CONTROL RECEIVER t~e 3 ANALOG OUTPUT SIGNALS ,e 5 BINARY-CODED INPUT/OUTPUT LINES f. MAINS SWITCH OUTPUT ~ MUTING FUNCTION ,f-. NORMALIZATION OF ANALOG SIGNALS ie STORAGE AVAILABILITY OF ANALOG SIGNALS [The M 1025 is a monolithic integrated circuit intended for a remote-controlled system in which 30 differ,'rent ultrasonic frequencies are used to transmit 30 control mands. The remended transmitters are 'the M 1024 or the M 1124. The M 1025 measures the frequency of the arriving signal by counting the ; cycles during a fixed measuring time determined by a 4.433 MHz quartz crystal. All ultrasonic mands : are converted into a coded 5-bit output signal and issued in pulsed form on 5 parallel lines. Nine of the lthirty mands are memorized and used inside the M 1025;they can also be selected directly by a 5-bit :word applied to the input/output binary lines (A to El The further 21 mands are for free application; tdifferent TV channels are selectable if a decoder is connected to the outputs. Six of the nine memorized <mands give output signals for controlling three analog values, e.g. volume, brightness and colour i Jaturation. These signals are continuously delivered in square waveform; the duty cycle can be varied so "determining the level of the analog value. Even when the mains voltage is not available, the latest analog value may be stored with a minimum of power by means of a battery or accumulator. The M 1025 is constructed in low-threshold P-channel silicon gate technology and is supplied in a 16-lead dual in-line "plastic package with copper insert. Three different types are available"CA, CB, CAZ, which differ as .specified in the table below. 'Type .CA CB CAZ MAINS ON by mands (see truth table for the definition of N) N = 1 and N = 15 to 30 (program selection) N = 15 to 30 (program selection) N =1 ABSOLUTE MAXIMUM RATINGS- Voo , Vooi- Supply voltages Input voltage Output current (pins 2, 3, 4,...