ISD1740A Просмотр технического описания (PDF) - Winbond

Номер в каталоге

Компоненты Описание

Список матч

ISD1740A

Multi-Message Single-Chip Voice Record & Playback Devices

Winbond 

ISD1700A SERIES

7.4 ANALOG INPUTS

7.4.1 Microphone Input

MIC +

MIC -

Ccoup

0.1uF

Ra = 7K

Ccoup

0.1uF

Ra = 7K

INTERNAL TO THE DEVICE

AGC

MIC IN

Fcutoff=1/(2*pi*Ra*Ccoup)

Figure 7.2: MIC input impedance (When this path is active)

7.4.2 AnaIn Input

INTERNAL TO THE DEVICE

ANAIN

Ccoup

0.1uF

Ra = 42K

Ra = 42K

ANAIN INPUT AMPLIFIER

Fcutoff=1/(2*pi*Ra*Ccoup)

Figure 7.3: AnaIn input impedance (When the device is powered-up)

Confidential

- 19 -

Publication Release Date: March 28, 2005

Revision A0

Share Link: