STA335BWS 查看數據表（PDF） - STMicroelectronics

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STA335BWS

2.1 channels high efficiency digital audio system

STMicroelectronics 

Register description

STA335BWS

For each configuration the PWM from the digital driver are mapped in different way to the

power stage:

2.0 channels, two full bridges (OCFG = 00):

" DDX1A ' OUT1A

" DDX1B ' OUT1B

" DDX2A ' OUT2A

" DDX2B ' OUT2B

" DDX3A ' OUT3A

" DDX3B ' OUT3B

" DDX4A ' OUT4A

" DDX4B ' OUT4B

" DDX1A/1B configured as ternary

" DDX2A/2B configured as ternary

" DDX3A/3B configured as line-out ternary

" DDX4A/4B configured as line-out ternary

On channel 3 line out (LOC bits = 00) the same data as channel 1 processing are sent. On

channel 4 line out (LOC bits = 00) the same data as channel 2 processing are sent. In this

configuration, no volume control or EQ have effect on channel 3 and 4.

In this configuration the PWM slot phase is the following as shown in the next figures.

Figure 13. 2.0 channels (OCFG = 00) PWM slots

OUT1A

OUT1B

OUT2A

OUT2B

OUT3A

OUT3B

OUT4A

OUT4B

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