STA335BWS datasheet(40/68 Pages) STMICROELECTRONICS

Part #	STA335BWS

Description	2.1-channel high-efficiency digital audio system

PDF	68 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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STA335BWS

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2.1 channels, two fullbridge + 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

Bit

R/W

RST

Name

Description

2R/W

IDE

Setting of 1 enables the automatic invalid input

detect mute

STA335BWS Datasheet(PDF) 40 Page - STMicroelectronics

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