AK4343VN Datasheet, PDF (44/99 Pages) Asahi Kasei Microsystems – Stereo DAC with HP/RCV/SPK-AMP

[AK4343]
■ ALC෦σΟδλϧϘϦϡʔϜ (ϚχϡΞϧϞʔυ࣌)
ALC bit = “0”ͷͱ͖ɺALC෦ͷσΟδλϧϘϦϡʔϜ͸ϚχϡΞϧϞʔυʹͳΓ·͢ɻ͜ͷϞʔυ͸ҎԼͷ
৔߹ʹ࢖༻͠·͢ɻ
1. ϦηοτղআޙɺALCಈ࡞ʹؔ͢ΔϨδελઃఆ(ZTM1-0, LMTH1-0 bitsͳͲ)Λߦ͏৔߹ɻ
2. αϯϓϦϯάप೾਺ͷมߋʹ൐͍ɺϦϛολʗϦΧόϦपͲͳظALCಈ࡞ʹؔ͢ΔϨδελมߋΛ
ߦ͏৔߹ɻ
ALC෦σΟδλϧϘϦϡʔϜͷήΠϯྔ͸AVL7-0, AVR7-0 bitsͰઃఆ͠·͢(Table 32)ɻϘϦϡʔϜมߋ࣌ɺ
L/RಠཱʹθϩΫϩεݕग़ಈ࡞Λߦ͍·͢ɻθϩΫϩελΠϜΞ΢τ࣌ؒ͸ZTM1-0 bitsͰઃఆ͢Δ͜ͱ͕Ͱ
͖·͢ɻ
ALCΛ࢖༻͠ͳ͍৔߹͸AVL7-0 = AVR7-0 bits = 91H (0dB)ʹઃఆͯ͠Լ͍͞ɻ
AVL7-0
AVR7-0
GAIN (dB)
Step
F1H
+36.0
F0H
+35.625
EFH
+35.25
:
:
E2H
+30.375
E1H
+30.0
0.375dB (default)
E0H
+29.625
:
:
03H
−53.25
02H
−53.625
01H
−54
00H
MUTE
Table 32. ALC෦σΟδλϧϘϦϡʔϜͷઃఆ஋
MS0478-J-02
- 44 -
2010/11