LMC1983 National Semiconductor, LMC1983 Datasheet - Page 9

• Manufacturer Part Number: LMC1983
• Description: Digitally-Controlled Stereo Tone and Volume Circuit with Three Selectable Stereo Inputs
• Manufacturer: National Semiconductor

Application Information
01000000
01000001
01000010
01000011
01000100
01000101
01000110
01000111
Address
(A7–A0)
Read Digital Input 1
Input Select + Mute
TABLE 1. IM Bus Programming Codes for LMC1983
Digital Input 2
Right Volume
Mode Select
Left Volume
on IM Bus
Loudness
Function
Treble
(Continued)
Bass
or
9
XXXXXXD1D0
XXXXXX00
XXXXXX01
XXXXXX10
XXXXXX11
XXXXXXX0
XXXXXXX1
XXXX11XX
XXXX11XX
XX11XXXX
XX11XXXX
XXXXX11X
XX101XXX
XX101XXX
XXXXX100
XXXXX101
XXXX0000
XXXX0011
XXXX0110
XXXX1001
XXXX0000
XXXX0011
XXXX0110
XXXX1001
XX000000
XX010100
XX000000
XX010100
Data
D0 = Digital Input 1
D1 = Digital Input 2
Loudness OFF
Loudness ON
Right Mono
Left Mono
Function
Selected
INPUT1
INPUT2
INPUT3
−12 dB
+12 dB
−12 dB
+12 dB
−40 dB
−80 dB
−80 dB
−40 dB
−80 dB
−80 dB
Stereo
MUTE
−6 dB
+6 dB
−6 dB
+6 dB
FLAT
FLAT
0 dB
0 dB
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