STA339BWTR View Datasheet(PDF) - STMicroelectronics

Part Name

Description

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STA339BWTR

2.1-channel high-efficiency digital audio system / PowerSSO-36 slug down Package

STMicroelectronics 

STA339BW

Register description

2.1 channels, two half bridges + one full bridge (OCFG = 01)

 FFX1A -> OUT1A

 FFX2A -> OUT1B

 FFX3A -> OUT2A

 FFX3B -> OUT2B

 FFX1A -> OUT3A

 FFX1B -> OUT3B

 FFX2A -> OUT4A

 FFX2B -> OUT4B

 FFX1A/1B configured as binary

 FFX2A/2B configured as binary

 FFX3A/3B configured as binary

 FFX4A/4B is not used

In this configuration, channel 3 has full control (volume, EQ, etc…). On OUT3/OUT4

channels the channel 1 and channel 2 PWM are replicated.

In this configuration the PWM slot phase is the following as shown in Figure 18.

Figure 18. 2.1 channels (OCFG = 01) PWM slots

OUT1A

OUT1B

OUT2A

OUT2B

OUT3A

OUT3B

OUT4A

OUT4B

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