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STA333BW Datasheet(PDF) 39 Page - STMicroelectronics

Part # STA333BW
Description  2.1 channel 40 W high-efficiency digital audio system Sound Terminal
PDF  68 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA333BW Datasheet(HTML) 39 Page - STMicroelectronics

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DocID13773 Rev 5
39/68
STA333BW
Register description
68
2.1 channels, two full-bridges + one external full-bridge (OCFG = 10)
Mapping:
FFX1A -> OUT1A
FFX1B -> OUT1B
FFX2A -> OUT2A
FFX2B -> OUT2B
FFX3A -> OUT3A
FFX3B -> OUT3B
EAPD -> OUT4A
TWARN -> OUT4B
Default modulation:
FFX1A / 1B configured as ternary
FFX2A / 2B configured as ternary
FFX3A / 3B configured as 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 18.
Figure 18. 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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