sta339bw STMicroelectronics, sta339bw Datasheet - Page 42

• Manufacturer Part Number: sta339bw
• Description: 2.1-channel High-efficiency Digital Audio System
• Manufacturer: STMicroelectronics

Register description
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2.1 channels, two half bridges + one full bridge (OCFG = 01)
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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 17. 2.1 channels (OCFG = 01) PWM slots
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
OUT1A
OUT1A
OUT2A
OUT2A
OUT2B
OUT2B
OUT3A
OUT3A
OUT3B
OUT3B
OUT4A
OUT4A
OUT4B
OUT4B
OUT1B
OUT1B
Doc ID 15251 Rev 4
Figure
17.
STA339BW