GPCR06C

© Generalplus Technology Inc.

Proprietary & Confidential

10

JAN. 09, 2009

Version: 1.0

8. APPLICATION CIRCUITS

8.1. Application Circuit - (Speaker/Microphone Alone)

PCB Layout Guidelines:

2. VSS and AVSS must be connected to power input port (GND) directly and independently, meaning not branch from one or another.

3. When R1=0, the MIC is most sensitive.

And R1 should be increased to improve noise immunity in different application.

4. C2 is suggested 0.1uF, the IC power is more stable if increase C2.

And C2 should be as closed as possible in between VDD/AVDD

5. C3 may be eliminated in stable power supply.