LMC1982CIN National Semiconductor, LMC1982CIN Datasheet
LMC1982CIN
Specifications of LMC1982CIN
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LMC1982CIN Summary of contents
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... Features n Low noise and distortion n Two pairs of stereo inputs Block and Connection Diagrams DNR ® registered trademark of National Semiconductor Corporation. Dolby ® registered trademark of Dolby Labs. © 2000 National Semiconductor Corporation n Enhanced stereo function n Loudness compensation n 40 position 2 dB/step volume attenuator plus mute ...
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... Infrared, (15 Seconds) 15V ESD Susceptability (Note 5) + GND − 0. 0.2V Operating Ratings 5 mA Temperature Range 20 mA LMC1982CIN, LMC1982CIV 500 mW Supply Voltage Range (V +125˚C −65˚C to +150˚ 9V kHz, input signal (300 mV) applied to INPUT 1, volume = 0 dB, bass = IN Conditions Clipping Level (1,.0% THD), Select Out (Pins 6, 23) Left and Right channels ...
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Electrical Characteristics The following specifications apply for V 0 dB, treble = 0 dB, enhanced stereo is off, and loudness is off unlessotherwise specified. All limits apply for T Symbol Parameter Channel-to-Channel Volume Tracking Error Mute Attenuation Bass Gain Range ...
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... Load Impedance DS011028-16 THD Constant) OUT DS011028-19 www.national.com (Continued the number given in the Absolute Maximum Ratings, whichever is lower. For the LMC1982CIN resistor. signal while the right inputs are grounded. rms Output Voltage vs Supply Voltage DS011028-14 CCIR Output Noise vs Volume Setting DS011028-17 ...
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Typical Performance Characteristics Tone Control Response with Equal Bass and Treble Control Settings DS011028-22 (Continued) Loudness Response vs Frequency DS011028-23 5 Select Input Impedance vs Frequency DS011028-24 www.national.com ...
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... Connection Diagrams Top View Order Number LMC1982CIN See NS Package Number N28B Pin Description CLK (1) The INTERMETAL (IM) Bus clock is applied to the CLOCK pin. This input accepts a TTL or CMOS level signal. The input is used to clock the DATA signal. A data bit must be valid on the rising clock edge. ...
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Pin Description (Continued) TABLE 1. IM Bus Programming Codes for LMC1982 Address (A7–A0) 01000000 Input Select + Mute 01000001 Loudness, Enhanced Stereo 01000010 01000011 01000100 01000101 01000110 01000111 Read Digital Input 1 General Information The LMC1982 is a CMOS/bipolar building ...
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General Information (Continued) are serially shifted from the controller to the LMC1982. This is followed by 8 bits of function value data. Data present in the internal shift register is latched and the instruction is executed. Application Information INPUT SELECTOR ...
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Application Information if the total emitter current exceeds 5 mA. Thus, maximum output voltage can be increased and much lower distortion levels can be achieved using load impedances of at least INPUT IMPEDANCE The input impedance of ...
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Application Information The bass turn-over frequency is nominally when maximum boost is chosen. The inflection points (the frequencies where the boost or cut is within the final value) are for treble and bass FIGURE 3. System Block ...
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Application Information As shown in Table 1 , loudness and enhanced stereo are controlled through the same address important to re- member to set both functions to the correct value any time either of these functions is updated. ...
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Application Information FIGURE 7. LMC1982’s INTERMETAL Serial Bus Timing www.national.com (Continued) 12 DS011028-11 ...
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... Physical Dimensions inches (millimeters) unless otherwise noted Order Number LMC1982CIN NS Package Number N28B 13 www.national.com ...
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... NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant ...