STA333BWQS13TR View Datasheet(PDF) - STMicroelectronics

Part Name

Description

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STA333BWQS13TR

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

STMicroelectronics 

STA333BWQS

Register description

Note:

To the left of the arrow is the processing channel. When using channel output mapping, any

of the three processing channel outputs can be used for any of the three inputs.

Figure 9. OCFG = 00 (default value)

Half

Bridge

Half

Bridge

Half

Bridge

Half

Bridge

OUT1A

OUT1B

OUT2A

Channel 1

Channel 2

OUT2B

OUT3A

OUT3B LPF

LineOut 1

OUT4A

OUT4B LPF

LineOut 2

Figure 10. OCFG = 01

Half

Bridge

Half

Bridge

Half

Bridge

Half

Bridge

OUT1A

OUT1B

OUT2A

OUT2B

Channel 1

Channel 2

Channel 3

Figure 11. OCFG = 10

Half

Bridge

Half

Bridge

Half

Bridge

Half

Bridge

OUT1A

OUT1B

OUT2A

Channel 1

Channel 2

OUT2B

OUT3A

OUT3B

EAPD

Power

Device

Channel 3

Figure 12. OCFG = 11

Half

Bridge

OUT1A

Half

Bridge

OUT1B

Half

Bridge

Half

Bridge

OUT2A

OUT2B

Channel 3

OUT3A

OUT3B

Channel 1

OUT4A

OUT4B

Channel 2

STA333BWQS can be configured to support different output configurations. For each PWM

output channel a "PWM slot" is defined. PWM slot is always 1 / (8 x Fs) seconds length. The

PWM slot define the maximum extension for PWM rise and fall edge, that is, rising edge as

far as the falling edge cannot range outside PWM slot boundaries.

Figure 13. STA333BWQS output mapping scheme

DDX™

modulator

DDX1A

DDX1B

OUT1A

DDX2A

DDX2B

DDX3A

DDX3B

OUT1B

OUT2A

DDX4A

DDX4B

OUT2B

REMAP

OUT3A

OUT3B

OUT4A

Power

Bridge

OUT4B

OUT1A

OUT1B

OUT2A

OUT2B

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