LMC1992CCN National Semiconductor, LMC1992CCN Datasheet
LMC1992CCN
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LMC1992CCN Summary of contents
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... DC-coupled inputs Y Single supply operation Y Applications Automotive audio systems Y to the Sound reinforcement systems Y Home entertainment stereo television and music re- Y production systems Electronic music (MIDI) Y Order Number LMC1992CCN See NS Package Number N28B TL H 10789 – 1 December 1994 10789 – 2 RRD-B30M75 Printed ...
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... Storage Temperature Lead Temperature N Package Soldering 10 sec 15V ESD Susceptibility (Note Pins Operating Ratings 20 mA Temperature Range 500 mW LMC1992CCN 125 C Supply Voltage Range (V The following specifications apply for and faders 0 dB unless otherwise specified All limits Conditions rms 20 dB Input Level ...
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... IN rms 100 P-P 100 Hz Sinewave Applied to Pin the absolute value of the current at that pin should JMAX or the number given in the Absolute Maximum Ratings whichever is lower For the LMC1992CCN T resistor kHz input signal applied Typical Limit Units (Note 6) (Note 7) (Limit (min) ...
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Typical Performance Characteristics Quiescent Current vs Supply Voltage TL H 10789–3 Total Harmonic Distortion vs Output AC Load TL H 10789–6 Channel Separation vs Frequency TL H 10789–9 Maximum Output Swing vs Supply Voltage TL H 10789 – 4 Total ...
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Typical Performance Characteristics Tone Control Response with Equal Bass and Treble Control Settings TL H 10789–12 Bass Tone Control Response Connection Diagram (Continued) Tone Control Response with Reciprocal Bass and Treble Control Settings TL H 10789 – 13 Select In ...
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Pin Description DATA(1) This is the serial data input for communica- tions sent by a controller The data rate has a maximum frequency of 500 kHz LMC1992 requires 11 bits of data to control or change a function the first ...
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Applications Information MINIMUM LOAD IMPEDANCE The LMC1992 employs emitter-follower buffers at pins 8 and 22 (SELECT OUT) 13 and 14 (LEFT FRONT and REAR OUTPUTs) and 16 and 17 (RIGHT FRONT-and- REAR OUTPUTs) that buffer output signals Typical bias current ...
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Applications Information (Continued) FIGURE 3 System Block Diagram Showing Inclusion of DNR Noise Reduction (LM1894) and Equalizer (LMC835) (One Channel Only LMC1992) The SELECT OUT pins (8 and 22) enable greater system design flexibility by providing a means to implement ...
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Applications Information (Continued) FIGURE 4 The Tone Control Amplifier Increasing the values of C2 and C3 decreases the turnover and inflection frequencies i e the Tone Control Response Curves shown in Typical Performance Curves will shift left when C2 and ...
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Applications Information (Continued) TABLE I Programming Codes for LMC1992 Address Function Left Rear Fader Right Rear Fader Left Front Fader Right Front Fader 0 1 ...
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Applications Information (Continued) DATA TRANSFER EXAMPLE The following routines based on the flowchart shown in Fig- ure 6 are examples of COPS TM microcontroller instruction code that can be used to control the LMC1992 (see Nation- al Semiconductor’s COPS Microcontrollers ...
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Applications Information (Continued) FIGURE 6 General Data Transmission Flowchart to Send Serial Data to the LMC1992’s MICROWIRE Compatible Digital Inputs 10789 – 23 ...
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... National does not assume any responsibility for use of any circuitry described no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications Molded Dual-In-Line Package (N) Order Number LMC1992CCN NS Package Number N28B 2 A critical component is any component of a life ...