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參數(shù)資料
| 型號(hào)： | LMC1982CIN |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類(lèi)： | 音頻控制 |
| 英文描述： | Digitally-Controlled Stereo Tone and Volume Circuit with Two Selectable Stereo Inputs |
| 中文描述： | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDIP28 |
| 封裝： | 0.600 INCH, PLASTIC, DIP-28 |
| 文件頁(yè)數(shù)： | 1/14頁(yè) |
| 文件大小： | 348K |
| 代理商： | LMC1982CIN |
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LMC1982
Digitally-Controlled Stereo Tone and Volume Circuit with
Two Selectable Stereo Inputs
General Description
The LMC1982 is a monolithic integrated circuit that provides
volume, balance, tone (bass and treble), enhanced stereo,
and loudness controls and selection between two pairs of
stereo inputs. These functions are digitally controlled
through a three-wire communication interface. There are two
digital inputs for easy interface to other audio peripherals
such as stereo decoders. The LMC1982 is designed for line
level input signals (300 mV–2V) and has a maximum gain of
0.5 dB. Volume is set at minimum and tone controls are flat
when supply voltage is first applied.
Low noise and distortion result from using analog switches
and poly-silicon resistor networks in the signal path.
Additional tone control can be achieved using the LMC835
stereo
7-band
graphic
equalizer
LMC1982’s SELECT OUT/SELECT IN external processor
loop.
connected
to
the
Features
n
Low noise and distortion
n
Two pairs of stereo inputs
n
Enhanced stereo function
n
Loudness compensation
n
40 position 2 dB/step volume attenuator plus mute
n
Independent left and right volume controls
n
Low noise-suitable for use with DNR
and Dolby
noise
reduction
n
External processor loop
n
Signal handling suitable for compact discs
n
Pop-free switching
n
Serially programmable: INTERMETAL bus (IM) interface
n
6V to 12V single supply operation
n
28 Pin DIP or PLCC package
Applications
n
Stereo television
n
Music reproduction systems
n
Sound reinforcement systems
n
Electronic music (MIDI)
n
Personal computer audio control
Block and Connection Diagrams
DNR
is a registered trademark of National Semiconductor Corporation.
Dolby
is a registered trademark of Dolby Labs.
DS011028-1
December 1994
L
1999 National Semiconductor Corporation
DS011028
www.national.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LMC1982CIV | Digitally-Controlled Stereo Tone and Volume Circuit with Two Selectable Stereo Inputs |
| LMC1983 | Digitally-Controlled Stereo Tone and Volume Circuit with Three Selectable Stereo Inputs |
| LMC1983CIN | Pushbutton Switch; Actuator Style:Rectangular; Circuitry:DPST-1NO/1NC; Switch Operation:On-(On); Contact Current Max:5A; Collar Shape:Rectangular; Features:Illuminated; Leaded Process Compatible:Yes; Mounting Type:PCB |
| LMC1983CIV | Digitally-Controlled Stereo Tone and Volume Circuit with Three Selectable Stereo Inputs |
| LMC1992 | LMC1992 Digitally-Controlled Stereo Tone and Volume Circuit with Four-Channel Input-Selector |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LMC1982CIV | 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:Digitally-Controlled Stereo Tone and Volume Circuit with Two Selectable Stereo Inputs |
| LMC1982CIVX | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Tone/Volume/Balance Control |
| LMC1983 | 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:Digitally-Controlled Stereo Tone and Volume Circuit with Three Selectable Stereo Inputs |
| LMC1983CIN | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| LMC1983CIV | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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