STA335BWSQS datasheet(40/70 Pages) STMICROELECTRONICS

부품명	STA335BWSQS

상세설명	2.1-channel, high-efficiency digital audio system with QSound QHD®

PDF	70 Pages

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제조업체	STMICROELECTRONICS [STMicroelectronics]

홈페이지	http://www.st.com

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40 / 70 page

STA335BWSQS

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2.1 channels, two full bridge + one external full bridge (OCFG = 10)

DDX1A OUT1A

DDX1B OUT1B

DDX2A OUT2A

DDX2B OUT2B

DDX3A OUT3A

DDX3B OUT3B

EAPD OUT4A

TWARN OUT4B

DDX1A/1B configured as ternary

DDX2A/2B configured as ternary

DDX3A/3B configured as ternary

DDX4A/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 the next figures:

Figure 15.

2.1 channels (OCFG = 10) PWM slots

6.6.2

Invalid input detect mute enable

Setting the IDE bit enables this function, which looks at the input I2S data and will

automatically mute if the signals are perceived as invalid.

OUT1A

OUT1B

OUT2A

OUT2B

OUT3A

OUT3B

OUT1A

OUT1B

OUT2A

OUT2B

OUT3A

OUT3B

Table 45.

IDE

Bit

RST

Name

Description

2RW

IDE

Setting of 1 enables the automatic invalid input

detect mute

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