TDA7405 Datasheet, PDF (54/56 Pages) STMicroelectronics – EQUALIZER CARRADIO SIGNAL PROCESSOR

TDA7405
Table 33. Stereodecoder Configuration (30)
MSB
LSB
D₇
D₆
D₅
D₄
D₃
D₂
D₁
D₀
FUNCTION
Multipath Influence on High-Cut
0 On
1 Off
Multipath Influence on Stereo-Blend
0
On
1
Off
Level-Input over Multipath-Detector¹
0
1
1 _On
1
x
x _Off
Dual MPX Mode
0
On
1
Off
Weak-Signal-Mute
0
on
1
off
WSMute Threshold
0
0.3 V
1
0.5V
WS-Mute-Depth
0
0
-20 dB
0
1
-24 dB
1
0
-28 dB
1
1
-32 dB
Note: 1. Using the Multipath Time-Constants for Stereo-Bland and High-Cut
Table 34. Testing Stereodecoder(31)
MSB
LSB
D₇
D₆
D₅
D₄
D₃
D₂
D₁ D₀
Main Testmode
0 off
1 on
FUNCTION
Stereodecoder Testmode
0
off
1
on
0
0
0
0
0
0
0
1
0
0
1
0
0
0
1
1
0
1
0
0
0
1
0
1
0
1
1
0
0
1
1
1
1
0
0
0
1
0
0
1
1
0
1
0
1
0
1
1
1
1
0
0
1
1
0
1
1
1
1
0
1
1
1
1
0
1
0
1
Testsignals
F228
NB threshold
Level for Stereo-Blend
Pilot magnitude
VHCCL
Pilot threshold
VHCCH
REF5V
HOLDN
NB Peak
AM-Rectifier
VCOCON; VCO Control Voltage
VSBL
Pilot threshold
Level for High-Cut
REF5V
Audioprocessor Oscillator
Off
On
Disable Noiseblanker @ FS > 2.5V
On
Off
Note : This byte is used for testing or evaluation purposes only and must not set to other values than "11111100" in the application
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