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SM6453AB Fiches technique(PDF) 10 Page - Nippon Precision Circuits Inc

No de pièce SM6453AB
Description  3-wire Serial Data Volume Control for Headphone Amplifiers IC
Download  12 Pages
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Fabricant  NPC [Nippon Precision Circuits Inc]
Site Internet  http://www.npc.co.jp/en
Logo NPC - Nippon Precision Circuits Inc

SM6453AB Fiches technique(HTML) 10 Page - Nippon Precision Circuits Inc

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SM6453AB
NIPPON PRECISION CIRCUITS—10
Microcontroller data description
“L” = VIL1 level, “H” = VIH1 level
I
D15 to D12: Not used (Don’t Care) bits. Can be either “L” or “H”.
I
D11: AGC bit. OFF when “L”, and ON when “H”.
I
D10, D9: Bass boost control bit.
I
D8: Input select bit. LIN1 and RIN1 when “L”, and LIN2 and RIN2 when “H”.
I
D7 to D0: Attenuation (ATT) bits.
Note: At system reset, AGC = OFF, bass boost = OFF, LIN1 and RIN1 input, MUTE are selected.
D11
AGC function
L
OFF
HON
D9
D10
Bass boost
characteristics
L
L
OFF
H
H
L
BB1
H
BB2
D8
Selected inputs
L
LIN1, RIN1
H
LIN2, RIN2
Amp gain
EVR ATT value
D7
D6
D5
D4
D3
D2
D1
D0
HEX
+ 12dB
0dB
LLLLLLLL
00
+ 11dB
− 1dB
LLLLLLL
H
01
+ 10dB
− 2dB
LLLLLL
H
L
02
:
:
:::::::::
− 3dB
− 15dB
LLLL
HHHH
0F
− 4dB
− 16dB
L
L
L
H
LLLL
10
− 5dB
− 17dB
L
L
L
H
L
L
L
H
11
:
:
:::::::::
− 52dB
− 63dB
L
L
HHHHHH
3F
− 53dB
− 64dB
L
H
LLLLLL
40
− 54dB
− 65dB
L
H
LLLLL
H
41
:
:
:::::::::
− 67dB
− 79dB
L
H
L
L
HHHH
4F
− 68dB
− 80dB
LHLH
LLLL
50
MUTE
MUTE
LHLHL
L
L
H
51
MUTE
MUTE
LHLHL
LHL
52
MUTE
MUTE
:::::::::
MUTE
MUTE
HHHHHHH
L
FE
MUTE
MUTE
HHHHHHHH
FF


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