TDA7514 Ver la hoja de datos (PDF) - STMicroelectronics
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TDA7514 Datasheet PDF : 74 Pages
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TDA7514
Table 8. Quality Actuators (continued)
Symbol
Parameter
Test Condition
Min. Typ. Max.
Unit
Blend Adjustment
The filtered Smeter input to the SNC detector has variable gain and
offset. See SNC Detector specs.
High Cut Control
VHCH
VHCH = a * b * 4V
(level = Smeter * 1.0)
see below
a
VHCH Shift “a” factor
0001
97
%
0010
73
%
0100
50
%
1000
32
%
b
VHCH “b” factor
00
67
%
01
75
%
10
83
%
11
92
%
VHCL
VHC Control Voltage for FULL for HCC control from level (where level = Smeter * 1.0):
Highcut Rolloff
VHCL = a * b * c * 4V
(or VHCL = c * VHCH)
for HCC control from SNC:
VHCL = 2V + a * b * c * 3V
c
VHCL “c” factor
00
16.70
%
01
22.20
%
10
27.80
%
11
33.30
%
fc range HCC Filter cutoff frequency 00
range
20kHz
~
4kHz
01
10kHz
~
2kHz
10
4kHz
~
800Hz
11
4kHz
~
800Hz
HCC step Number of settings (per
32
range)
21/74
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