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STA381BWS Datasheet(PDF) 120 Page - STMicroelectronics

Part # STA381BWS
Description  Sound Terminal® 2.1-channel high-efficiency digital audio system
PDF  171 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA381BWS Datasheet(HTML) 120 Page - STMicroelectronics

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Register description: Sound Terminal compatibility
STA381BWS
120/171
Doc ID 018937 Rev 6
2.1 channels, two full-bridges + one external full-bridge (OCFG = 10)
●
FFX1A -> OUT1A
●
FFX1B -> OUT1B
●
FFX2A -> OUT2A
●
FFX2B -> OUT2B
●
FFX3A -> OUT3A
●
FFX3B -> OUT3B
●
EAPD -> OUT4A
●
TWARN -> OUT4B
●
FFX1A/1B configured as C1B0 (default: ternary)
●
FFX2A/2B configured as C2B0 (default: ternary)
●
FFX3A/3B configured as C3B0 (default: ternary)
●
FFX4A/4B is not used
In this configuration, channel 3 has full control (volume, EQ, etc…). On OUT4 channel the
external bridge control signals are muxed.
In this configuration the PWM slot phase is the following as shown in Figure 38.
Figure 38.
2.1 channels (OCFG = 10) PWM slots
OUT1A
OUT1B
OUT2A
OUT2B
OUT3A
OUT3B
OUT1A
OUT1B
OUT2A
OUT2B
OUT3A
OUT3B
OUT1A
OUT1B
OUT2A
OUT2B
OUT3A
OUT3B
OUT1A
OUT1B
OUT2A
OUT2B
OUT3A
OUT3B



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