TDA7407D Datasheet, PDF (27/34 Pages) STMicroelectronics – ADVANCED CAR SIGNAL PROCESSOR

TDA7407D
Table 17. Soft Mute and Bass Programming (subaddress 8H)
MSB
LSB
FUNCTION
D7
D6
D5
D4
D3
D2
D1
D0
Mute
0 Enable Soft Mute
1 Disable Soft Mute
0
0
Mutetime = 0.48ms
0
1
Mutetime = 0.96ms
1
0
Mutetime = 40.4ms
1
1
Mutetime = 324ms
0
Stereodecoder Soft Mute Influence = on
1
Stereodecoder Soft Mute Influence = off
) 0
0
t(s ⁰
1
1
0
c ₁
1
u ₁
1
Prod_t(s) ⁰
0
0
1
te ^{c 1}
0
le ^{u 1}
1
so ^{rod 1 Only for Bass Q-Factor = 2.0}
b ^P _{Table 18. Stereodecoder (subaddress 9H)}
- ^{O te} MSB
t(s) ^{ole D7}
D6
D5
D4
D3
D2
uc Obs ₀
d _{- 0}
ro ⁾₁
P _t(s1
te ^c1
le du ⁰
so ^ro1
0
b P₁
O _{te 0}
le¹
o ₀
Obs¹
Bass Center Frequency
Center Frequency = 60 Hz
Center Frequency = 70 Hz
Center Frequency = 80 Hz
Center Frequency = 100Hz
Center Frequency = 150Hz ⁽¹⁾
Noise Blanker Time
38µs
25.5µs
32µs
22µs
LSB
FUNCTION
D1
D0
0 STD Unmuted
1 STD Muted
0
In Gain 11dB
1
In Gain 8.5dB
0
In Gain 6dB
1
In Gain 3.5dB
must be “1”
Forced Mono
Mono/Stereo switch automatically
Noiseblanker PEAK charge current low
Noiseblanker PEAK charge current high
Pilot Threshold HIGH
Pilot Threshold LOW
Deemphasis 50µs
Deemphasis 75µs
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