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參數(shù)資料
| 型號： | LC85050 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Cordless Answering Machine System IC(無繩應(yīng)答電話機系統(tǒng)芯片) |
| 中文描述： | 無繩電話應(yīng)答機系統(tǒng)集成電路（無繩應(yīng)答電話機系統(tǒng)芯片） |
| 文件頁數(shù)： | 1/7頁 |
| 文件大?。?/td> | 43K |
| 代理商： | LC85050 |
Ordering number : ENN
*
6327
21800RM (OT) No. 6237-1/7
Overview
The LC85050 is a cordless answering machine system IC
that integrates an extensive set of functions on a single
chip. These functions include a DSP that provides audio
recording and playback functions, voice recognition
functions, text-to-speech synthesis, and line and audio
echo cancellation, a
∑
A/D converter, a
∑
D/A
converter, a flash memory interface, and a host CPU
interface.
The LC85050 uses the PULCOD
TM
(pulse code excited
linear prediction) high-compression ratio compression
algorithm to allow up to 19 minutes of audio recording on
4M of external flash memory. Furthermore, the optional
LD-ADPCM (low-distortion ADPCM) waveform
encoding algorithm allows the recording and playback of
high-quality audio signals.
The LC85050’s line and audio echo cancellation function
allows it to implement a speakerphone function for
answering machine/telephone products. It also includes
ITU-T V.23 and Bell 202 conforming data transmission
and reception functions to support caller ID.
The LC85050’s text-to-speech synthesis function allows
end products to announce the name of the calling party. Its
speaker-independent voice recognition function can be
used to allow users to easily enter telephone numbers in its
phone book. The LC85050’s speaker-dependent voice
recognition function allows users to pre-register the names
of people to call with the user’s own voice. Then the user
can then either recall any of those parties’ phone number,
or even call the person, simply by speaking the name.
Furthermore, the LC85050 can easily implement all of the
functions required by standard telephone or answering
machine products, including DTMF and other tone
generation and detection as well as music synthesis.
Features
PULCOD
TM
(high compression ratio encoding)
—High compression ratio: 3.6 kbps
—Automatic input gain adjustment function
—Voice trigger function
—Silence removal function
—Tail cut function
—Variable-speed playback function
Preliminary
LC85050
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Cordless Answering Machine System IC
CMOS IC
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
control 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.
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SANYO: QFP80E (QIP80E)
[LC85050]
Package Dimensions
unit: mm
3174-QIP80E
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