One Channel Speech Controller
SNC15040
8.2 Motor application
There are some suggestions about PCB layout when user use SNC15000
series IC with motor applications.
(1) The capacitor C1 ! C8 (104) is strongly suggested to be as close to the chip as
possible.
(2) It had better let OSC components (R) get close to IC chip.
(3) OSC components had better get far away large current applications.
(4) Separate IC power path with large current application power path to avoid affect
IC working by power drop from large current application.
(5) R2 (10 Ł
Ł)separate VDDIO and CVDD.
(6) Let power cable thicker, especially for large current application.
(7) C2 C3 C4 and C5 C6 C7 (104) are connected at the shell of motor, positive
point and negative point of the motor.
Ver: 1.5
9
October 30, 2008
SONIX [ SONIX TECHNOLOGY COMPANY ]
