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ISD1620BXYI01 参数 Datasheet PDF下载

ISD1620BXYI01图片预览
型号: ISD1620BXYI01
PDF下载: 下载PDF文件 查看货源
内容描述: 单消息单芯片6.6-到40秒的语音记录和播放设备与vAlert选项 [Single-Message Single-Chip 6.6- to 40-Second Voice Record & Playback Devices with vAlert Option]
分类和应用: 音频合成器集成电路消费电路商用集成电路
文件页数/大小: 23 页 / 309 K
品牌: WINBOND [ WINBOND ]
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ISD1600B SERIES  
5. PIN DESCRIPTION  
PIN NAME  
SOIC / PDIP  
FUNCTIONS  
PIN NO.  
VSSD  
1
Digital Ground: VSSD is the ground for digital circuits. It is  
important to have a separate path for each ground back to  
the system ground terminal to minimize noise.  
2
REC  
Record: The device starts recording whenever REC  
transits from High to Low and stays at Low. Recording stops  
when the signal returns to High. This pin has an internal  
pull-up resistor [1] and an internal debounce on falling edge.  
3
4
Edge-trigger Playback: A playback operation starts when  
this input detects a low going signal exceeding the specified  
debounced time. This pin has an internal pull-up resistor [1]  
and an internal debounce on both falling & rising edge.  
PLAYE  
PLAYL  
Level-trigger Playback: A playback operation begins when  
this input detects a low going signal and remains at Low.  
Playback stops when the signal returns to High. This pin has  
[1]  
an internal pull-up resistor  
falling edge.  
and an internal debounce on  
VSSA  
5
6
Analog Ground: VSSA is the ground for analog circuits. It is  
important to have a separate path for each ground back to  
the system ground terminal to minimize noise.  
MIC+  
Microphone Positive Input: The input transfers the signal  
to the preamplifier. The internal Automatic Gain Control  
(AGC) circuit controls the gain of the preamplifier. An  
external microphone should be AC coupled to this pin via a  
series capacitor. The capacitor value, together with an  
internal 10 Kresistance on this pin, determines the low-  
frequency cutoff for the ISD1600B passband.  
MIC-  
SP-  
7
8
9
Microphone Negative Input: This is the inverting input to  
the microphone preamplifier. It provides input noise-  
cancellation, or common-mode rejection, when the  
microphone is connected differentially to the device.  
Speaker Negative : The SP-, Class D PWM output,  
provides a differential output with SP+ pin to drive 8ꢀ  
speaker or buzzer. During power down or recording, this pin  
is tri-stated.  
VSSP  
PWM Ground: VSSP is the ground for PWM speaker driver.  
It is important to have a separate path for each ground back  
to the system ground terminal to minimize noise.  
Publication Release Date: Jan. 23, 2007  
- 7 -  
Revision 1.2  
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