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參數(shù)資料
| 型號： | LC83025 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 元件分類： | 數(shù)字信號處理 |
| 英文描述： | Digital Signal Processor for Karaoke Products |
| 中文描述： | 數(shù)字信號處理器的卡拉OK產(chǎn)品 |
| 文件頁數(shù)： | 1/15頁 |
| 文件大?。?/td> | 262K |
| 代理商： | LC83025 |
CMOS LSI
Ordering number : EN4977A
62896HA (OT)/63095HA (OT) No. 4977-1/15
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
Digital Signal Processor
for Karaoke Products
LC83025E
Overview
The LC83025E is a special-purpose karaoke DSP that
implements the signal processing required by karaoke
systems, including pitch shift, microphone echo, voice
muting and simple surround, with only a single 256Kb
external DRAM. Since the LC83025E includes built-in
A/D and D/A converters, it can also handle analog inputs
and outputs in addition to digital inputs and outputs. The
LC83025E uses serial transfer of coefficient data from a
microcontroller to handle changes in functions and
characteristics required for each application.
Features
Applications
— Pitch shift
The LC83025E can shift the music pitch or the
microphone pitch by ±15 steps in 1/4 interval steps,
or ±1 octave in scale tone steps according to
command data sent from the microcontroller.
Furthermore, the pitch can be changed up to ±1
octave in arbitrary steps by setting internal
coefficients.
— Microphone echo
The LC83025E implements echo processing for the
signal input from the microphone A/D converter.
The amount of echo, the delay time and other
parameters can be changed by setting coefficients.
— Voice mute
The LC83025E implements processing that removes
monaural signal components included in the music
signal. This allows CDs with vocals to be used as
karaoke CDs. Command data is used to turn the
voice mute function on or off.
— Simple surround
The LC83025E implements a simple surround
function by adding delayed components to the music
signal. The LC83025E includes six sets of simple
surround coefficients as built-in preset data. These
values can be switched by sending command data.
Applications can implement their own original
surround effects by setting the coefficients.
However, the algorithm itself is fixed.
— Flexible input mixing
The LC83025E supports hybrid mixing of digital
and analog left and right channel song inputs, and
thus can handle a wide range of disk processing
configurations.
Audio inputs and outputs
— Inputs: Digital - One system (stereo)
A/D converter - Three channels
— Outputs: Digital - One system (stereo)
D/A converter - Two channels
— A/D converter
Second order
∑
modulation - Three channels
— D/A converter
4
×
oversampling digital filters
plus second order noise shaper
plus 5-bit PWM system - Two channels
Master clock: 768 fs
External memory: Up to two 256K (64K
×
4-bit)
DRAMs can be used
Microcontroller input: Synchronous 8-bit serial data
Supply voltage: 5 V single-voltage
Package: QFP80E
Package Dimensions
unit: mm
3174-QFP80E
SANYO: QFP80E
[LC83025E]
相關PDF資料 |
PDF描述 |
|---|---|
| LC83025E | Digital Signal Processor for Karaoke Products |
| LC83026E | Digital Signal Processor for Karaoke Systems |
| LC8390 | 16bits A/D and D/A Converters for Digital Audio Systems |
| LC8390M | 16bits A/D and D/A Converters for Digital Audio Systems |
| LC85050 | Cordless Answering Machine System IC(無繩應答電話機系統(tǒng)芯片) |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LC83025E | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Digital Signal Processor for Karaoke Products |
| LC83026E | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Digital Signal Processor for Karaoke Systems |
| LC8390 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:16bits A/D and D/A Converters for Digital Audio Systems |
| LC8390M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:16bits A/D and D/A Converters for Digital Audio Systems |
| LC8395-90 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:16-Bit Microcontroller |
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