SNC710

16-bit Voice Engine

Input data

Typical value of output current (mA)

0

0

1

3/1024

…

N

n*(3/1024)

…

1024

3

PWM: A PWM (pulse width modulation) circuit is built-in SNC710. PWM can convert

input digital data into pulse trains with suitable different pulse width. The maximum

resolution of PWM is 10 bits. Two huge output stage circuits are included in SNC710.

Both of them are capable of driving speaker directly. The recommended application

circuit is as follows.

SPEAKER

BN0

BP0

46

24

44

VO

8050

1K

SPEAKER

VDD

DAC output

PWM output

Ver. 1.4

July 30, 2003

9