SNC108 查看數據表（PDF） - Sonix Technology Co., Ltd
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SNC108 Datasheet PDF : 11 Pages
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SNC108
One Channel Direct Drive Speech Controller
5.7. DAC & PWM
SNC108 is an advanced chip to be designed having two optimal methods to play
out the voices. One is DAC and the other is PWM. Upon user’s applications, user
can select either DAC or PWM in his design. Please be aware that only one
method can be activated at a time.
DAC: A 7-bit current type digital-to-analog converter is built-in SNC108. The
relationship between input digital data and output analog current signal is listed
in the following table. Also, the recommended application circuit is illustrated as
follows.
Input data
0
1
…
N
…
127
Typical value of output current (mA)
0
3/127
n*(3/127)
3
VCC
BUO1/VO
1K
DAC output
Ver: 1.3
5
June 8, 2005
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