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SM6453AB Folha de dados(PDF) 10 Page - Nippon Precision Circuits Inc

Nome de Peças SM6453AB
Descrição Electrónicos  3-wire Serial Data Volume Control for Headphone Amplifier IC
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Fabricante Electrônico  NPC [Nippon Precision Circuits Inc]
Página de início  http://www.npc.co.jp/en
Logo NPC - Nippon Precision Circuits Inc

SM6453AB Folha de dados(HTML) 10 Page - Nippon Precision Circuits Inc

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SM6453AB
NIPPON PRECISION CIRCUITS INC.—10
Microcontroller data description
Definition: “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”. AGC = OFF when system reset (see “Automatic gain
control function”).
I
D10, D9: Bass boost control bits. Bass boost = OFF and bass boost mode = BB1 when system reset (see
“Bass boost function”).
I
D8: Input select bit. LIN1 and RIN1 when “L”, and LIN2 and RIN2 when “H”. LIN1 and RIN1 input when
system reset.
Figure 2. Microcontroller data description
D11
AGC function
LOW
OFF
HIGH
ON
D9
D10
Bass boost
characteristics
LOW
LOW
OFF
HIGH
HIGH
LOW
BB1
HIGH
BB2
D15 D14 D13 D12 D11 D10 D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
MDT
Don't care
EVR gain setting
GEVR: 0dB to -80dB, MUTE
D8
Selected inputs
LOW
LIN1, RIN1
HIGH
LIN2, RIN2
LIN1/LIN2
LIN1
RIN1
LIN2
RIN2
RIN1/RIN2
D8=L/D8=H
Input
Output
Input Selector Block
Input
Selector
To EVR Block


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