PDF LC75384NE-R Data sheet ( Hoja de datos )

Número de pieza	LC75384NE-R
Descripción	(LC75384NE-R/NW) Electronic Volume and Tone Control
Fabricantes	Sanyo Semiconductor Corporation
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No Preview Available ! Ordering number : ENN6169 CMOS IC LC75384NE-R, 75384NW Electronic Volume and Tone Control for Car Stereo Systems Overview The LC75384NE-R and LC75384NW are electronic volume and tone control ICs that can implement volume, balance, fader, bass/treble/mid, loudness, input switching, and input gain control functions with a minimum number of external components. Features • Volume: 81 positions: from 0 dB to –79 dB in 1-dB steps and –∞. A balance function can be implemented by controlling the left and right volume settings independently. • Fader: Either the rear or front outputs can be attenuated over 16 positions. (16 positions: From 0 dB to –2 dB in 1-dB steps, from –2 dB to –20 dB in 2-dB steps, from –20 to –30 dB in one 10-dB step, –45 dB, –60 dB, and –∞.) • Bass/treble/mid: Control over ±12 dB in 2-dB steps in each band. • Input gain: The input signal can be amplified by from 0 dB to +18.75 dB in 1.25-dB steps. • Input switching: The left and right channels can each be selected from one of 5 inputs. (Four are single-ended inputs and one is a differential input.) • Loudness: Taps are output from a 2-dB step volume control ladder resistor starting at the –32-dB position. A loudness function can be implemented by attaching external capacitors and resistors. • On-chip buffer amplifiers minimize the number of required external components. • Minimal switching noise when no input signals are present due to fabrication in a silicon gate CMOS process that minimizes the noise generated by internal switches. • Use of zero-cross switching circuits for internal switches minimizes switching noise when signals are present. • Built-in VDD/2 reference voltage generator circuit • All controls can be set from serial input data. • CCB is a trademark of SANYO ELECTRIC CO., LTD. • CCB is SANYO’s original bus format and all the bus addresses are controlled by SANYO. Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft’s www.DataSheet4U.comcontrol systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications. SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO products described or contained herein. SANYO Electric Co.,Ltd. Semiconductor Company TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN 51000TH (OT) No.6169-1/25 www.DataSheet4U.com 1 page LC75384NE-R, 75384NW Equivalent Circuit and Sample Application Circuit Diagram LTOUT LF3C3 330 pF 0.01 µF LF3C2 LF3C1 0.0033 µF 0.1 µF LF2C3 LF2C2 LF2C1 0.033 µF 1 µF LF1C3 LF1C2 LF1C1 10 µF LTIN LVROUT 10 µF LCOM LVref LCT LVRIN LSELO LVref LVref LVref LVref RVref RVref RVref RTOUT RF3C3 RF3C2 RF3C1 RF2C3 RF2C2 RF2C1 RF1C3 RF1C2 RF1C1 330 pF 0.01 µF 0.0033 µF 0.1 µF 0.033 µF 1 µF RTIN 10 µF RVROUT RCOM 10 µF RVref RCT RVRIN RSELO RVref • In the LC75384NW version, LZCLP (pin 28) and RZCLP (pin 21) are unused, and must be left open. No.6169-5/25 5 Page LC75384NE-R, 75384NW 1-dB Step Volume Control Block Equivalent Circuit From the left channel 2-dB volume control block Switch used for initial setup 5.438 k 44.564 k 0 dB -1 dB -∞ dB Vref Switch used for initial setup LCOM LVROUT Unit: (Resistance : Ω) Total resistance: 50 kΩ The right channel is identical. Three-Band Graphic Equalizer Block Equivalent Circuit Diagram LTIN 50 k 5.1 k LVref 5.1 k LTOUT 0.711 k 0.648 k 1.015 k 1.751 k 3.595 k 10.977 k 12 dB 10 dB 8 dB 6 dB 4 dB 0.711 k 0.648 k 1.015 k 1.751 k 3.595 k 10.977 k 12 dB 10 dB 8 dB 6 dB 4 dB 0.711 k 0.648 k 1.015 k 1.751 k 3.595 k 10.977 k 12 dB 10 dB 8 dB 6 dB 4 dB LF1C1 LF1C2 LF1C3 Unit: (Resistance : Ω) LF2C1 LF2C2 LF2C3 LF3C1 LF3C2 LF3C3 No.6169-11/25 11 Page

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Hoja de datos destacado

Número de pieza	Descripción	Fabricantes
LC75384NE-R	(LC75384NE-R/NW) Electronic Volume and Tone Control	Sanyo Semiconductor Corporation

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