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AK4372 Datasheet, PDF (32/62 Pages) Asahi Kasei Microsystems – DAC with built-in PLL & HP-AMP | |||
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[AK4372]
â Headphone Output Volume
HPL/HPR volume is controlled by ATTH4-0 bits when HMUTE bit = â0â (+12dB â¼ â51dB or +6dB â¼ â57dB or 0dB â¼
â63dB, 1.5dB or 3dB step, Table 25)
HMUTE
0
1
ATTH4-0
00H
01H
02H
03H
:
12H
13H
14H
15H
16H
:
1DH
1EH
1FH
x
HPG1-0 bits = â10â
(DAC Only)
+12dB
+10.5dB
+9dB
+7.5dB
:
â15dB
â16.5dB
â18dB
â21dB
â24dB
:
â45dB
â48dB
â51dB
MUTE
HPG1-0 bits = â01â
(DAC Only)
+6dB
+4.5dB
+3dB
+1.5dB
:
â21dB
â22.5dB
â24dB
â27dB
â30dB
:
â51dB
â54dB
â57dB
MUTE
HPG1-0 bits = â00â
0dB
â1.5dB
â3dB
â4.5dB
:
â27dB
â28.5dB
â30dB
â33dB
â36dB
:
â57dB
â60dB
â63dB
MUTE
STEP
(default)
1.5dB
3dB
Table 25. HPL/HPR Volume ATT values (x: Donât care)
MS0684-E-02
- 32 -
2008/12
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