LC89075W-H SANYO [Sanyo Semicon Device], LC89075W-H Datasheet - Page 56

• Manufacturer Part Number: LC89075W-H
• Description: Digital Audio Interface Receiver with Stereo ADC and Audio Selector
• Manufacturer: SANYO [Sanyo Semicon Device]

• The ADC soft mute and attenuator gain changes in 0.25dB steps.
• The transition time is calculated from the following formula. Other than when “ADFDSP[2:0]=000” or
Register name
Initial value
Setting
“ADVOL[7:0]=FFh” is set.
ADFDSP[2:0]
ADSMUTE
ADPGA[2:0]
ADBMOD
08h
Transition time from the ADVOL[7:0] register setting value to -∞
ADBMOD
= (256-ADVOL[7:0]) × ADFDSP[2:0]
= (256-(0, 0.25, 0.5, 0.75 ... 63.5dB/0.25dB) × (1/fs, 2/fs, 4/fs, 8/fs, 16/fs)
ADC soft mute and attenuator transition time setting
ADC output mute function setting
ADC input PGA setting
Audio data output waiting time setting when ADC reset is released
R/W
D7
0
000: 1/fs (initial value) (Reference: Transition time from 0dB => -∞ is 256/fs)
001: 2/fs (Reference: Transition time from 0dB => -∞ is 512/fs)
010: 4/fs (Reference: Transition time from 0dB => -∞ is 1024/fs)
011: 8/fs (Reference: Transition time from 0dB => --∞ is 2048/fs)
100: 16/fs (Reference: Transition time from 0dB => -∞ is 4096/fs)
101: Reserved
110: Reserved
111: Direct (Reference: Transition time from 0dB => -∞ is 1/fs)
000: 0 (initial value)
001: -1.5dB
010: -3dB
011: -4.5dB
100: +1.5dB
101: +3dB
110: +4.5dB
111: +6dB
0: Cancel the soft mute mode (initial value).
1: Start the soft mute.
0: The audio data is output after 16384/fs (initial value).
1: The audio data is output immediately after release of reset.
ADPGA2
R/W
D6
0
Address: 08h; ADC Data Control Setting
ADPGA1
R/W
D5
0
LC89075W-H
ADPGA0
R/W
D4
0
ADSMUTE
R/W
D3
0
ADFDSP2
D2
R
0
ADFDSP1
R/W
D1
0
No.A1858-56/69
ADFDSP0
R/W
D0
0