Datasheet > SNC353_05

SNC353_05

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
松翰 - SONIX		驱动控制器
页数	文件大小	规格书
11页	401K
描述
Direct Drive Voice/Dual Tone Melody Controller

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SNC353_05 数据手册

SNC353

Direct Drive Voice/Dual Tone Melody Controller

5.8. IR Function

P33 can be modulated with 38.5KHz square wave before sent out to P33 pin. The IR

signal can be achieved by this modulated signal.

38.5KHZ

"1"

PAD

Mode

P33

5.9. DAC & PWM

SNC353 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 SNC353. 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

Typical value of output current (mA)

3/127

…

127

n*(3/127)

Ver: 1.4

June 8, 2005

1 2 3 456 7 8...11

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