參數(shù)資料
型號(hào)： ISD1750A
廠商： WINBOND ELECTRONICS CORP
英文描述： Multi-Message Single-Chip Voice Record&Playback Devices
中文描述： 多信息單芯片語(yǔ)音記錄
文件頁(yè)數(shù)： 11/31頁(yè)
文件大?。?/td> 360K
代理商： ISD1750A
ISD1700A SERIES
Confidential
Publication Release Date: March 28, 2005
- 11 -
Revision A0
6 FUNCTIONAL DESCRIPTION
6.1 D
ETAILED
D
ESCRIPTION
6.1.1 Audio Quality
Winbond’s patented ChipCorder
Multi-Level Storage (MLS) technology provides a natural,
high-quality record and playback solution on a single chip. The input voice signals are stored
directly in the Flash memory and are reproduced in their natural form without any of the
compression artifacts caused by digital speech solutions.
6.1.2 Message Duration
The ISD1740A/50A/60A devices offer record and playback duration from 26 seconds to 120
seconds. Sampling rate and message duration are determined by an external resistor
connected to the R
OSC
pin.
Table 6.1 Duration vs. Sampling Frequency
Sample Rate
12 kHz
8 kHz
6.4 kHz
5.3 kHz
4 kHz
ISD1740A
26 sec
40 sec
50 sec
60 sec
80 sec
ISD1750A
33 sec
50 sec
62 sec
75 sec
100 sec
ISD1760A
40 sec
60 sec
75 sec
90 sec
120 sec
6.1.3 Flash Storage
The ISD1740A/50A/60A devices utilize embedded Flash memory to provide non-volatile
storage. A message can be retained for a minimum of 100 years without power. Additionally,
each device can be re-recorded over 10,000 times (typical).
6.2 M
EMORY
A
RRAY
A
RCHITECTURE
The memory array provides storage for four special Sound Effects (SE) and the audio data. The
memory array is addressed by rows. A row is the minimum storage resolution by which the
memory can be addressed. The memory assignment is handled automatically by the internal
message management system.
The four sound effects occupy four rows of the first sixteen rows in the memory array. The
minimum storage resolution varies with the sampling frequency, as shown in
Table 6.2
.
Table 6.2 Minimum Storage Resolution vs. Sampling Frequency
Sampling Frequency
12 kHz
8 kHz
6.4 kHz
5.3 kHz
4 kHz
Minimum Storage Resolution
83.3 msec
125 msec
156 msec
187 msec
250 msec
For example, at 8 kHz sampling frequency, the minimum storage resolution is 125 msec, so, each
Sound Effect (SE) is approximately 0.5 seconds long. The remaining memory is dedicated to audio
data storage.
相關(guān)PDF資料
PDF描述
ISD1700A Multi-Message Single-Chip Voice Record&Playback Devices
ISD1740A RES 2K00 SM 1/8W F 0805C THKF 100PPM TR
ISD1760A Multi-Message Single-Chip Voice Record&Playback Devices
ISD1800 SINGLE-CHIP, SINGLE-MESSAGE VOICE RECORD/PLAYBACK DEVICE 6- TO 16-SECOND DURATION
ISD1810 Single-Chip, Single-Message Voice Record/Playback Device 8- to 16-Second Durations(單片聲音錄音/回放芯片(單片信息存儲(chǔ)持續(xù)時(shí)間8到16秒鐘))
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ISD1750EY 功能描述:IC VOICE REC/PLAY 50-SEC 28-TSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 語(yǔ)音錄制和重放 系列:ISD1700, ChipCorder® 標(biāo)準(zhǔn)包裝:14 系列:- 接口:串行 濾波器通頻帶:1.7kHz 持續(xù)時(shí)間:8 ~ 32 秒 安裝類型:通孔 封裝/外殼:28-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:28-PDIP 其它名稱:90-21300+000
ISD1750EY01 功能描述:IC VOICE REC/PLAY 50-SEC 28-TSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 語(yǔ)音錄制和重放 系列:ISD1700, ChipCorder® 標(biāo)準(zhǔn)包裝:14 系列:- 接口:串行 濾波器通頻帶:1.7kHz 持續(xù)時(shí)間:8 ~ 32 秒 安裝類型:通孔 封裝/外殼:28-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:28-PDIP 其它名稱:90-21300+000
ISD1750EYI 功能描述:IC VOICE REC/PLAY 50-SEC 28-TSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 語(yǔ)音錄制和重放 系列:ISD1700, ChipCorder® 標(biāo)準(zhǔn)包裝:14 系列:- 接口:串行 濾波器通頻帶:1.7kHz 持續(xù)時(shí)間:8 ~ 32 秒 安裝類型:通孔 封裝/外殼:28-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:28-PDIP 其它名稱:90-21300+000
ISD1750EYI01 功能描述:IC VOICE REC/PLAY 50-SEC 28-TSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 語(yǔ)音錄制和重放 系列:ISD1700, ChipCorder® 標(biāo)準(zhǔn)包裝:14 系列:- 接口:串行 濾波器通頻帶:1.7kHz 持續(xù)時(shí)間:8 ~ 32 秒 安裝類型:通孔 封裝/外殼:28-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:28-PDIP 其它名稱:90-21300+000
ISD1750EYIR 功能描述:IC VOICE REC/PLAY 50SEC 28-TSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 語(yǔ)音錄制和重放 系列:ISD1700, ChipCorder® 標(biāo)準(zhǔn)包裝:14 系列:- 接口:串行 濾波器通頻帶:1.7kHz 持續(xù)時(shí)間:8 ~ 32 秒 安裝類型:通孔 封裝/外殼:28-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:28-PDIP 其它名稱:90-21300+000
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