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TDA7400 データシート(PDF) 23 Page - STMicroelectronics

部品番号 TDA7400
部品情報  ADVANCED CAR SIGNAL PROCESSOR
PDF  28 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7400 データシート(HTML) 23 Page - STMicroelectronics

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Stereodecoder (subaddress 9H)
MSB
LSB
FUNCTION
D7
D6
D5
D4
D3
D2
D1
D0
0
1
STD Unmuted
STD Muted
0
1
1
0
In Gain 8.5dB
In Gain 6dB
others combinations not used
1
must be ”1”
0
1
Forced Mono
Mono/Stereo switch automatically
0
1
Noiseblanker PEAK charge current low
Noiseblanker PEAK charge current high
0
1
Pilot Threshold HIGH
Pilot Threshold LOW
0
1
Deemphasis 50
µs
Deemphasis 75
µs
Soft Mute and Bass Programming (subaddress 8H)
MSB
LSB
FUNCTION
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
0
1
1
0
1
0
1
0
1
Mute
Enable Soft Mute
Disable Soft Mute
Mutetime = 0.48ms
Mutetime = 0.96ms
Mutetime = 40.4ms
Mutetime = 324ms
Stereodecoder Soft Mute Influence = on
Stereodecoder Soft Mute Influence = off
0
0
1
1
1
0
1
0
1
1
Bass Center Frequency
Center Frequency = 60 Hz
Center Frequency = 70 Hz
Center Frequency = 80 Hz
Center Frequency = 100Hz
Center Frequency = 150Hz (1)
0
0
1
1
0
1
0
1
Noise Blanker Time
Center Frequency = 38
µs
Center Frequency = 25.5
µs
Center Frequency = 32
µs
Center Frequency = 22
µs
(1) Only for Bass Q-Factor = 2.0
TDA7400
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