Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

I can't record voice by IC ISD1700 it not response anything.

Status
Not open for further replies.
M

mmc01

Newbie level 5
Joined
Jan 9, 2012
Messages
10
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,358
I try to use ISD1700 like this **broken link removed** in page 16.

I want to use with microphone . I use Rosc pin 20 = 100k(ohm) . All Capacitor ceramic = 0.1uF. All capacitor electrolite = 4.7uF 25V. I don't use pin 2,3,17,27 not connect with anything. I don't understand how to connect different GND. I connect every GND to same GND and all VCC (vcca,vccd,vccp) to same vcc 5V from power supply . when I test my circuit it not have sound. I check speaker it ok but it have no sound from circuit. I use 8 Ohm 1.5W speaker. How to use ISD1700 with microphone. please help me.
 

**broken link removed**
 

LED blink 7 times when I press REC, PLAY button . It have no sound from circuit. when I press ERASE button hold to LED blink 7 times and I press REC button again it still blink 7 times as usual. How to use ISD1700 to record voice ?
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top