STA320 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
STA320 Datasheet PDF : 37 Pages
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STA320
5.3.3 Over-Current Warning Detect Adjustment Bypass
BIT
R/W
RST
NAME
DESCRIPTION
7
R/W
1
OCRB
Over-Current-Warning Adjustment Bypass:
0 - Over-Current warning Adjustment enabled
1 - Over-Current warning Adjustment disabled
The OCDETECT input is used to indicate an Over-Current Warning condition. When OCDETECT is as-
serted (set to 0), the power control block will force a -3dB adjustment to the modulation limit in an attempt
to eliminate the over-current warning condition.
Once the over-current warning volume adjustment is applied, it remains in this state until reset is applied.
5.4 Configuration Register D(Address 03h)
D7
D6
D5
D4
MME
ZDE
DRC
BQL
0
1
0
0
D3
D2
D1
D0
PSL
DSPB
DEMP
HPB
0
0
0
0
5.4.1 High-Pass Filter Bypass
BIT
R/W
RST
NAME
DESCRIPTION
0
R/W
0
HPB
High-Pass Filter Bypass Bit. Setting of one bypasses internal
AC coupling digital high-pass filter
The STA320 features an internal digital high-pass filter for the purpose of AC coupling. The purpose of
this filter is to prevent DC signals from passing through a DDX amplifier.
DC signals can cause speaker damage. When HPB=0, this filter is enabled
5.4.2 De-Emphasis
BIT
R/W
RST
NAME
1
R/W
0
DEMP
DE-emphasis
0 - No De-emphasis
1 - De-emphasis
Setting the DEMP bit enables de-emphasis on all channels
DESCRIPTION
5.4.3 DSP Bypass
BIT
R/W
RST
NAME
DESCRIPTION
2
R/W
0
DSPB
DSP bypass Bit:
0 - Normal Operation
1 - Bypass of Biquad and Bass/Treble Functionality
Setting the DSPB bit bypasses the EQ functionality of the STA320.
5.4.4 Post-Scale Link
BIT
R/W
RST
NAME
DESCRIPTION
3
R/W
0
PSL
Post-Scale Link:
0 - Each Channel uses individual Post-Scale value
1 - Each Channel uses Channel 1 Post-Scale value
Post-Scale functionality can be used for power-supply error correction.
For multi-channel applications running off the same power-supply, the post-scale values can be linked to
the value of channel 1 for ease of use and update the values faster.
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