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| 型号： | LC78684E |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP80 |
| 封装： | 14 X 14 MM, QFP-80 |
| 文件页数： | 1/21页 |
| 文件大小： | 152K |
| 代理商： | LC78684E |
N2206 / 20703RM(OT) No.7350-1/21
Any and all SANYO Semiconductor 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 control systems, or other applications whose failure can be reasonably expected to result in
serious physical and/or material damage. Consult with your SANYO Semiconductor representative
nearest you before using any SANYO Semiconductor products described or contained herein in such
applications.
SANYO Semiconductor 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 Semiconductor
products described or contained herein.
LC78684E
Overview
The LC78684E integrates, on a single chip, CD-ROM
signal-processing functions, MP3 signal-processing func-
tions, and CD-DA shockproof signal-processing functions.
The LC78684E achieves significant power savings by
implementing signal-processing functions using hard-wired
structures.
A CD player that supports playback of MPEG audio (MP3)
recorded on CD media as well as CD-DA shockproof
playback can be implemented by combining this IC with a
CD DSP, DRAM, and audio D/A converter, and other
circuits.
Features
MP3 Decoding Functions (MPEG audio standard
[ISO/IEC 11172-3] layer 3)
Decodes to a digital audio signal MP3 data decoded by
the CD-ROM decoder and outputs that audio signal.
Supports all bit rates, including variable bit rate
operation.
Supports the following sampling rates.
MPEG1 (Fs = 32 K, 44.1 K, 48 K)
MPEG2 (Fs = 16 K, 22.05 K, 24 K)
MPEG2.5 (Fs = 8 K, 11.025 K, 12 K)
Can read out the MPEG header and ancillary data.
Automatically mutes the signal on CRC errors using an
MP3 CRC check function.
External MPEG serial data input function supports
memory card playback.
CD-ROM Decoding Functions
Supports CD-ROM modes 1 and 2 (forms 1 and 2)
Faithfully reproduces data stored on CD-ROM discs
using CD-ROM error correction functions.
Header and sector management
Supports playback speeds up to 4×.
In addition to data buffering also supports C2 error flag
buffering.
Provides external serial output of decoded CD-ROM
data.
CD-DA Playback Functions (Shockproof support)
Shockproof operation for about 180 seconds (com-
pressed mode) when 64M DRAM is used.
Shockproof function supports compressed, uncom-
pressed, and data through modes.
VCEC (variable speed) supports up to 4×-speed play-
back.
Audio Signal Processing
Serial audio signal output using LRCK, BCK, and
DATA signals.
(IS format, either 16-bit or 20-bit precision PCM
output, data-slot supports 16-bit, 24-bit, and 32-bit
modes)
Digital bass boost function (4 modes), attenuator
function, and muting (
∞, 12 dB)
Provides a base clock (384 fs) output pin for use with
external digital filters and D/A converters.
Continued on next page.
Ordering number : ENN7350
CMOS IC
MP3 Decoder for
Compact Disc Players
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| LC78815M | SERIAL INPUT LOADING, 16-BIT DAC, PDSO20 |
| LC78816MB | SERIAL INPUT LOADING, 16-BIT DAC, PDSO20 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LC7868E | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Digital Signal Processor for Compact Disc Players |
| LC7868KE | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Digital Signal Processor for Compact Disc Players |
| LC786922E-6A01-E | 制造商:ON Semiconductor 功能描述:CD-DSP - Trays |
| LC786923W-02ST-LR-E | 制造商:ON Semiconductor 功能描述: |
| LC786924T-H | 制造商:ON Semiconductor 功能描述:CD-DSP - Trays |
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