CXA2149 Sony Corporation, CXA2149 Datasheet - Page 17

• Manufacturer Part Number: CXA2149
• Description: US Audio Multiplexing Decoder
• Manufacturer: Sony Corporation

Power on Reset Data1 Bit 0
After power on this bit will be set to 1 when DVCC, Pin 44, passes through a defined threshold level. The
control registers are then defined as below. After the first write command the bit will be reset to 0.
Control Register Descriptions
Video Inputs
CVOUT1 Data1 Bits 4 to 7
These bits select the input signal that will be output on the CVOUT1 pin.
CVOUT1
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010 to 1111
CVOUT2 Data1 Bits 0 to 3
These bits select the input signal that will be output on the CVOUT2 pin.
CVOUT2
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010 to 111
CVOUT1=CVOUT2=1001, LO0 switch=LO1 switch=1, YCOUT1=YCOUT2=111,
ZCD switch=AOUT3 mute=1, AOUT1=AOUT2=111, Group delay=10000,
AOUT3=111, AOUT3 volume control coarse=AOUT3 volume control fine=111,
AOUT3L/R switch=00, GD1 switch=GD2 switch=1, SYNC1 switch=SYNC2 switch=1.
Input or function selected
TV
CVin1
CVin2
Y1
Y2
Y3
Y1+C1
Y2+C2
Y3+C3
Mute
Not used
Input or function selected
TV
CVin1
CVin2
Y1
Y2
Y3
Y1+C1
Y2+C2
Y3+C3
Mute
Not used
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CXA2149Q