STA339BWS_11 datasheet(39/76 Pages) STMICROELECTRONICS

部品番号	STA339BWS

部品情報	2.1-channel 40-watt high-efficiency digital audio system Sound Terminal®

PDF	76 Pages

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メーカー	STMICROELECTRONICS [STMicroelectronics]

ホームページ	http://www.st.com

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39 / 76 page

STA339BWS

Doc ID 15276 Rev 5

39/76

2.1 channels, two half-bridges + one full-bridge (OCFG = 01)

Mapping:

●

FFX1A -> OUT1A

●

FFX2A -> OUT1B

●

FFX3A -> OUT2A

●

FFX3B -> OUT2B

●

FFX1A -> OUT3A

●

FFX1B -> OUT3B

●

FFX2A -> OUT4A

●

FFX2B -> OUT4B

Modulation:

●

FFX1A/1B configured as binary

●

FFX2A/2B configured as binary

●

FFX3A/3B configured as binary

●

FFX4A/4B configured as binary

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 16.

Figure 16.

2.1 channels (OCFG = 01) PWM slots

OUT1A

OUT2A

OUT2B

OUT3A

OUT3B

OUT1B

OUT4A

OUT4B

OUT1A

OUT2A

OUT2B

OUT3A

OUT3B

OUT1B

OUT4A

OUT4B

OUT1A

OUT2A

OUT2B

OUT3A

OUT3B

OUT1B

OUT4A

OUT4B

OUT1A

OUT2A

OUT2B

OUT3A

OUT3B

OUT1B

OUT1A

OUT2A

OUT2B

OUT3A

OUT3B

OUT1B

OUT4A

OUT4B

OUT1A

OUT2A

OUT2B

OUT3A

OUT3B

OUT1B

OUT4A

OUT4B

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