STA382BW Datasheet, PDF (120/172 Pages) STMicroelectronics – Sound Terminal® 2.1-channel high-efficiency digital audio system

Register description: Sound Terminal compatibility
STA382BW
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 channel 1 and channel 2 PWM are replicated.
In this configuration the PWM slot phase is the following as shown in Figure 37.
Figure 37. 2.1 channels (OCFG = 01) PWM slots
OUT1A
OUT1B
OUT2A
OUT2B
OUT3A
OUT3B
OUT4A
OUT4B
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Doc ID 022783 Rev 1