STA335BWQS datasheet(40/72 Pages) STMICROELECTRONICS

Part #	STA335BWQS

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

PDF	72 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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40 / 72 page

STA335BWQS

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For each configuration the PWM from the digital driver is mapped in a different way to the

power stage:

2.0 channels, two full bridges (OCFG = 00)

DDX1A : OUT1A

DDX1B : OUT1B

DDX2A : OUT2A

DDX2B : OUT2B

DDX3A : OUT3A

DDX3B : OUT3B

DDX4A : OUT4A

DDX4B : OUT4B

DDX1A/1B configured as ternary

DDX2A/2B configured as ternary

DDX3A/3B configured as line-out ternary

DDX4A/4B configured as line-out ternary.

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

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

configuration, no volume control or EQ have effect on channel 3 and 4.

Figure 17 shows the PWM slot phases for this configuration.

Figure 17.

2.0 channels (OCFG = 00) PWM slots.

OUT1A

OUT1B

OUT2A

OUT2B

OUT3A

OUT3B

OUT4A

OUT4B

Obsolete

Product(s)

- Obsolete

Product(s)

STA335BWQS Datasheet(PDF) 40 Page - STMicroelectronics