STA382BW datasheet(119/172 Pages) STMICROELECTRONICS

tên linh kiện	STA382BW

Giải thích chi tiết về linh kiện	Sound Terminal® 2.1-channel high-efficiency digital audio system

PDF	172 Pages

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nhà sản xuất	STMICROELECTRONICS [STMicroelectronics]

Trang chủ	http://www.st.com

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119 / 172 page

STA382BW

Doc ID 022783 Rev 1

119/172

For each configuration the PWM signals from the digital driver are mapped in different ways

to the power stage:

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

●

FFX1A -> OUT1A

●

FFX1B -> OUT1B

●

FFX2A -> OUT2A

●

FFX2B -> OUT2B

●

FFX3A -> OUT3A

●

FFX3B -> OUT3B

●

FFX4A -> OUT4A

●

FFX4B -> OUT4B

●

FFX1A/1B configured as C1B0 (default: ternary)

●

FFX2A/2B configured as C2B0 (default: ternary)

●

FFX3A/3B configured as C3B0 (default: ternary) line out

●

FFX4A/4B configured as C4B0 (default: ternary) line out

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

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

configuration, neither volume control nor EQ has any effect on channels 3 and 4.

In this configuration the PWM slot phase is the following as shown in Figure 36.

Figure 36.

2.0 channels (OCFG = 00) PWM slots

OUT1A

OUT1B

OUT2A

OUT2B

OUT3A

OUT3B

OUT4A

OUT4B

OUT1A

OUT1B

OUT2A

OUT2B

OUT3A

OUT3B

OUT4A

OUT4B

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