參數(shù)資料
型號(hào)： ISD1420PY
廠商： WINBOND ELECTRONICS CORP
元件分類： 音頻合成
英文描述： 20 SEC, SPEECH SYNTHESIZER WITH RCDG, PDIP28
封裝： 0.600 INCH, LEAD FREE, PLASTIC, DIP-28
文件頁(yè)數(shù)： 31/33頁(yè)
文件大?。?/td> 318K
代理商： ISD1420PY
ISD1400 SERIES
Publication Release Date: November 16, 2005
- 7 -
Revision 1.3
PIN NAME
PIN NO
FUNCTION
MIC REF
18
Microphone Reference
: The MIC REF input is the inverting
input to the microphone preamplifier. This provides a noise-
canceling or common-mode rejection input to the device
when connected to a differential microphone.
AGC
19
Automatic Gain Control (AGC)
: The AGC dynamically
adjusts the gain of the preamplifier to compensate for the
wide range of microphone input levels. The AGC allows the
full range of sound, from whispers to loud sounds, to be
recorded with minimal distortion. The “attack” time is
determined by the time constant of a 5 K internal resistance
and an external capacitor (C6 on the schematic of section 11,
Figure 5) connected from the AGC pin to VSSA analog ground.
The “release” time is determined by the time constant of an
external resistor (R5) and an external capacitor (C6)
connected in parallel between the AGC pin and VSSA analog
ground. Nominal values of 470 K and 4.7 F give
satisfactory results in most cases.
ANA IN
20
Analog Input
: The analog input pin transfers its signal to the
chip for recording. For microphone inputs, the ANA OUT pin
should be connected via an external capacitor to the ANA IN
pin. This capacitor value, together with the 3.0 K input
impedance of ANA IN, is selected to give additional cutoff at
the low-frequency end of the voice passband. If the desired
input is derived from a source other than a microphone, the
signal can be fed, capacitively coupled, into the ANA IN pin
directly.
ANA OUT
21
Analog Output
: This pin provides the preamplifier output to
the user. The voltage gain of the preamplifier is determined
by the voltage level at the AGC pin.
PLAYL
[2]
23
Playback, Level-Activated
: When this input signal is held
LOW, a playback cycle is initiated, and playback continues
until PLAYL is pulled HIGH, or an EOM marker is detected.
The device automatically powers down and enters into
standby mode upon completion of a playback cycle.
PLAYE
[2]
24
Playback, Edge-Activated
: When a LOW-going transition is
input to this pin, a playback cycle begins. Taking PLAYE
HIGH during a playback cycle will not terminate the current
cycle. Playback continues until an EOM is encountered. Upon
completion of a playback cycle, the device automatically
powers down and enters into standby mode.
相關(guān)PDF資料
PDF描述
ISD1420SC5006 20 SEC, SPEECH SYNTHESIZER WITH RCDG, PDSO28
ISD1420SIC5006 20 SEC, SPEECH SYNTHESIZER WITH RCDG, PDSO28
ISD1420SYI 20 SEC, SPEECH SYNTHESIZER WITH RCDG, PDSO28
ISD1420SY 20 SEC, SPEECH SYNTHESIZER WITH RCDG, PDSO28
ISD1420XC5006 20 SEC, SPEECH SYNTHESIZER WITH RCDG, UUC25
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ISD1420PYI 功能描述:IC VOICE REC/PLAY 20SEC 28-DIP RoHS:是 類別:集成電路 (IC) >> 接口 - 語(yǔ)音錄制和重放 系列:ISD1400 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
ISD1420S 功能描述:IC MEM VOICE REC/PLAY 20S SO28 RoHS:否 類別:集成電路 (IC) >> 接口 - 語(yǔ)音錄制和重放 系列:ISD1400 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
ISD1420SI 功能描述:IC VOICE REC/PLAY 20SEC 28-SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 語(yǔ)音錄制和重放 系列:ISD1400 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
ISD1420SIR 功能描述:IC VOICE REC/PLAY 20-SEC 28-SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 語(yǔ)音錄制和重放 系列:ISD1400 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
ISD1420SY 功能描述:IC MEM VOICE REC/PLAY 20S 28SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 語(yǔ)音錄制和重放 系列:ISD1400 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
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*