STA381BWSTR STMicroelectronics, STA381BWSTR Datasheet - Page 118
STA381BWSTR
Manufacturer Part Number
STA381BWSTR
Description
Audio DSPs Sound Terminal 2.1 High EFF Dig Audio
Manufacturer
STMicroelectronics
Datasheet
1.STA381BWSTR.pdf
(171 pages)
Specifications of STA381BWSTR
Product Category
Audio DSPs
Rohs
yes
Operating Supply Voltage
4.5 V to 25.5 V
Operating Temperature Range
0 C to + 150 C
Mounting Style
SMD/SMT
Package / Case
VQFN-48
Snr
100 dB
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Register description: Sound Terminal compatibility
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For each configuration the PWM signals from the digital driver are mapped in different ways
to the power stage:
2.0 channels, two full-bridges (OCFG = 00)
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On channel 3 line out (LOC bits = 00) the same data as channel 1 processing is sent. On
channel 4 line out (LOC bits = 00) the same data as channel 2 processing is sent. In this
configuration, neither volume control nor EQ has any effect on channels 3 and 4.
In this configuration the PWM slot phase is the following as shown in
Figure 36. 2.0 channels (OCFG = 00) PWM slots
FFX1A -> OUT1A
FFX1B -> OUT1B
FFX2A -> OUT2A
FFX2B -> OUT2B
FFX3A -> OUT3A
FFX3B -> OUT3B
FFX4A -> OUT4A
FFX4B -> OUT4B
FFX1A/1B configured as C1B0 (default: ternary)
FFX2A/2B configured as C2B0 (default: ternary)
FFX3A/3B configured as C3B0 (default: ternary) line out
FFX4A/4B configured as C4B0 (default: ternary) line out
OUT1A
OUT1A
OUT1B
OUT1B
OUT2A
OUT2A
OUT2B
OUT2B
OUT3A
OUT3A
OUT3B
OUT3B
OUT4A
OUT4A
OUT4B
OUT4B
Doc ID 018937 Rev 6
Figure
36.
STA381BWS
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