Datasheet > ISD4004-16MSIR

ISD4004-16MSIR

更新时间： 2022-09-29 19:43:03

品牌	Logo	应用领域
其他 - ETC		/
页数	文件大小	规格书
34页	417K
描述
IC VOICE REC/PL 16MIN IN 28SOIC

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ISD4004-16MSIR 数据手册

ISD4004

5. PIN DESCRIPTION

PIN NAME

PIN #

FUNCTION

SOIC /

PDIP

Slave Select: This input, when LOW, will select the ISD4004 device.

MOSI

Master Out Slave IN: This is the serial input to the ISD4004 device when it

is configured as slave. The master microcontroller places data on the MOSI

line one half-cycle before the rising edge of SCLK for clocking into the

device.

MISO

Master In Slave Out: This is the serial output of the ISD4004 device. This

output goes into a high-impedance state if the device is not selected.

V_SSA/ V_SSD

11, 12, Ground: The ISD4004 series utilizes separate analog and digital ground

23 / 4

busses. The analog ground (V_SSA) pins should be tied together as close as

possible and connected through a low-impedance path to power supply

ground. The digital ground (V_SSD) pin should be connected through a

separate low-impedance path to power supply ground. These ground paths

should be large enough to ensure that the impedance between the V_SSApins

and the V_SSDpin is less than 3 Ω. The backside of the die is connected to

V_SSthrough the substrate. For chip-on-board design, the die attach area

must be connected to V_SSor left floating.

5-10,

15, 19-

Not connected

AUD OUT ^[1]

AM CAP

Audio Output: This pin provides an audio output of the stored data and is

recommended be AC coupled. It is capable of driving a 5 KΩ impedance

R_EXT

AutoMute™ Feature: The AutoMute feature only applies for playback

operation and helps to minimize noise (with 6 dB of attenuation) when there

is no signal (i.e. during periods of silence). A 1 µF capacitor to ground is

recommended to connect to the AM CAP pin.

This capacitor becomes a part of an internal peak detector which senses the

signal amplitude. This peak level is compared to an internally set threshold

to determine the AutoMute trip point. For large signals, the AutoMute

attenuation is set to 0 dB automatically but 6 dB of attenuation occurs for

silence. The 1 µF capacitor also affects the rate at which the AutoMute

feature changes with the signal amplitude (or the attack time).

The AutoMute feature can be disabled by connecting the AM CAP pin

directly to V_CCA..

[1]

The AUD OUT pin is always at 1.2 volts when the device is powered up. When in playback, the output buffer

connected to this pin can drive a load as small as 5 KΩ. When in record, a built-in resistor connects AUD OUT to

the internal 1.2-volt analog ground supply. This resistor is approximately 850 KΩ, but will vary somewhat according

to the sample rate of the device. This relatively high impedance allows this pin to be connected to an audio bus

without loading it down.

Jun 28, 2021

Page 6 of 34

Rev1.5

1...3 4 567 8 9...34

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与ISD4004-16MSIR相关器件

型号	品牌	描述	获取价格	数据表
ISD4004-16MSY	NUVOTON	SINGLE-CHIP, MULTIPLE-MESSAGES VOICE RECORD/PLAYBACK DEVICES 8-, 10-, 12-, AND 16-MINUTE D	获取价格
ISD4004-16MSY	WINBOND	Speech Synthesizer With RCDG, 960s, CMOS, PDSO28, 0.300 INCH, LEAD FREE, PLASTIC, SOIC-28	获取价格
ISD4004-16MSYI	WINBOND	Speech Synthesizer With RCDG, 960s, CMOS, PDSO28, 0.300 INCH, LEAD FREE, PLASTIC, SOIC-28	获取价格
ISD4004-16MSYI	NUVOTON	SINGLE-CHIP, MULTIPLE-MESSAGES VOICE RECORD/PLAYBACK DEVICES 8-, 10-, 12-, AND 16-MINUTE D	获取价格
ISD4004-16MX	WINBOND	Single-Chip Voice Record/Playback Devices 8-, 10-, 12-, and 16-Minute Durations	获取价格
ISD4004-16MX	NUVOTON	SINGLE-CHIP, MULTIPLE-MESSAGES VOICE RECORD/PLAYBACK DEVICES 8-, 10-, 12-, AND 16-MINUTE D	获取价格

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