PT8401 Datasheet, PDF (18/28 Pages) Princeton Technology Corp – MP3 Audio Decoder

Princeton Technology Corp.
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URL: http://www.princeton.com.tw
MP3 Audio Decoder
PT8401
BALANCE CONTROL COMMAND
Balance control is implemented through 4 coefficients setting as shown in Figure 9.
Original L
Prescale
Mix_LL
Mix_LR
+ _{Volume Final L}
Original R
Prescale
Mix_RL
Mix_RR
+ _{Volume Final R}
Figure 10: Balance Control Relation.
Address Register
Nam e
0x55 Mix_LL
0x56 Mix_RL
0x57 Mix_LR
0x58 Mix_RR
Description
Default
Mix original left channel to output left channel with 0 dB
to –96 dB(0x60).
Default is 0x0.
Mix original right channel to output left channel with
0 dB to –96 dB(0x60).
Default is 0x60.
Mix original left channel to output right channel with
0 dB to –96 dB(0x60).
Default is 0x60
Mix original right channel to output right channel with
0 dB to –96 dB(0x60).
Default is 0x0.
0x0
0x60
0x60
0x0
R/W
R/W
R/W
R/W
R/W
PT8401 v 1.3
Page 18
Updated March 2002