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STA015T Arkusz danych(PDF) 36 Page - STMicroelectronics

Numer części STA015T
Szczegółowy opis  MPEG 2.5 LAYER III AUDIO DECODER WITH ADPCM CAPABILITY
PDF  55 Pages
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Producent  STMICROELECTRONICS [STMicroelectronics]
Strona internetowa  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA015T Arkusz danych(HTML) 36 Page - STMicroelectronics

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TREBLE_FREQUENCY_LOW
Address: 0x77 (119)
Type: RW
Software Reset: 0x00
Hardware Reset: 0x00
TREBLE_FREQUENCY_HIGH
Address: 0x78
Type: RW
Software Reset: 0x00
Hardware Reset: 0x00
The registers TREBLE_FREQUENCY-HIGH and TREBLE_FREQUENCY-LOW, logically concatenated
as a 16 bit wide register, are used to select the frequency, in Hz, where the selected frequency is +12dB
respect to the stop band. By setting these registers, the following rule must be kept:
Treble_Freq < Fs/2
BASS_FREQUENCY_LOW
Address: 0x79 (121)
Software Reset: 0x00
Hardware Reset: 0x00
BASS_FREQUENCY_HIGH
Address: 0x7A (122)
Software Reset: 0x00
Hardware Reset: 0x00
The registers BASS_FREQUENCY_HIGH and BASS_FREQUENCY_LOW, logically concatenated as a
16 bit wide register, are used to select the frequency, in Hz, where the selected frequency is -12dB respect
to the pass-band. By setting the BASS_FREQUENCY registers, the following rules must be kept:
MSB
LSB
b7
b6
b5
b4
b3
b2
b1
b0
TF7
TF6
TF5
TF4
TF3
TF2
TF1
TF0
MSB
LSB
b7
b6
b5
b4
b3
b2
b1
b0
TF15
TF14
TF13
TF12
TF11
TF10
TF9
TF8
MSB
LSB
b7
b6
b5
b4
b3
b2
b1
b0
BF7
BF6
BF5
BF4
BF3
BF2
BF1
BF0
MSB
LSB
b7
b6
b5
b4
b3
b2
b1
b0
BF15
BF14
BF13
BF12
BF11
BF10
BF9
BF8



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