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参数资料
| 型号： | ISD1420PC5006 |
| 厂商： | WINBOND ELECTRONICS CORP |
| 元件分类： | 音频合成 |
| 英文描述： | 20 SEC, SPEECH SYNTHESIZER WITH RCDG, PDIP28 |
| 封装： | 0.600 INCH, PLASTIC, DIP-28 |
| 文件页数： | 31/33页 |
| 文件大小： | 318K |
| 代理商： | ISD1420PC5006 |
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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.
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| ISD1420PIC5006 | 20 SEC, SPEECH SYNTHESIZER WITH RCDG, PDIP28 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISD1420PI | 功能描述:IC VOICE REC/PLAY 20SEC 28-PDIP RoHS:否 类别:集成电路 (IC) >> 接口 - 语音录制和重放 系列:ISD1400 标准包装:14 系列:- 接口:串行 滤波器通频带:1.7kHz 持续时间:8 ~ 32 秒 安装类型:通孔 封装/外壳:28-DIP（0.300"，7.62mm） 供应商设备封装:28-PDIP 其它名称:90-21300+000 |
| ISD1420PY | 功能描述:IC MEM VOICE REC/PLAY 20S 28-DIP RoHS:是 类别:集成电路 (IC) >> 接口 - 语音录制和重放 系列:ISD1400 标准包装:14 系列:- 接口:串行 滤波器通频带:1.7kHz 持续时间:8 ~ 32 秒 安装类型:通孔 封装/外壳:28-DIP（0.300"，7.62mm） 供应商设备封装:28-PDIP 其它名称:90-21300+000 |
| ISD1420PYI | 功能描述:IC VOICE REC/PLAY 20SEC 28-DIP RoHS:是 类别:集成电路 (IC) >> 接口 - 语音录制和重放 系列:ISD1400 标准包装:14 系列:- 接口:串行 滤波器通频带:1.7kHz 持续时间:8 ~ 32 秒 安装类型:通孔 封装/外壳:28-DIP（0.300"，7.62mm） 供应商设备封装:28-PDIP 其它名称:90-21300+000 |
| ISD1420S | 功能描述:IC MEM VOICE REC/PLAY 20S SO28 RoHS:否 类别:集成电路 (IC) >> 接口 - 语音录制和重放 系列:ISD1400 标准包装:14 系列:- 接口:串行 滤波器通频带:1.7kHz 持续时间:8 ~ 32 秒 安装类型:通孔 封装/外壳:28-DIP（0.300"，7.62mm） 供应商设备封装:28-PDIP 其它名称:90-21300+000 |
| ISD1420SI | 功能描述:IC VOICE REC/PLAY 20SEC 28-SOIC RoHS:否 类别:集成电路 (IC) >> 接口 - 语音录制和重放 系列:ISD1400 标准包装:14 系列:- 接口:串行 滤波器通频带:1.7kHz 持续时间:8 ~ 32 秒 安装类型:通孔 封装/外壳:28-DIP（0.300"，7.62mm） 供应商设备封装:28-PDIP 其它名称:90-21300+000 |
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