UPC1853 NEC, UPC1853 Datasheet - Page 27
UPC1853
Manufacturer Part Number
UPC1853
Description
MATRIX SURROUND IC WITH I2C BUS
Manufacturer
NEC
Datasheet
1.UPC1853.pdf
(76 pages)
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(4) Rear output selection
(L-R) signal).
(5) Volume control
By the data of subaddress 00H, bit D7, output signal of the rear output pin can be selected ( (L-R) signal or
By the data of subaddress 01H, 05H, 06H and 07H, bit D5 to D0, the volume control can be adjusted in 64 levels.
• Main output volume control
• L+R signal output volume control
Subaddress
Subaddress
Subaddress
01H
05H
00H
D7
D7
0
0
Rear
output
selection
D7
Automatic
increment
Automatic
increment
Fig. 4-4 Rear Output Selection ( PC1853-01)
Fig. 4-5 Volume Control ( PC1853-01) (1/2)
D6
D6
Rear output selection
Low
boost
0
1
D6
(L-R) signal: Not phase-shifted
(L-R) signal: Phase-shifted
D5
D5
Low
boost
gain
D5
D4
D4
Rear
output
mute
L+R signal output volume control
D4
Main output volume control
D3
D3
L+R
signal
output
mute
D3
D2
D2
Audio
output
mute
D5 ··· D0
D5 ··· D0
D2
111111
111111
000000
000000
Main output volume control
L+R signal output volume control
Data
Data
D1
D1
Main
output
mute
D1
Attenuation volume
Attenuation volume
D0
D0
Low
Low
Flat
Flat
Audio
output
control
link
D0
PC1853
27