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AK4141 Datasheet, PDF (82/96 Pages) Asahi Kasei Microsystems – NICAM/A2/EIA-J Digital Stereo Decoder | |||
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CONFIDENTIAL
[AK4141]
Addr
70H
71H
Register Name
Carrier 2 Magnitude Noise 1
Carrier 2 Magnitude Noise 0
R/W
Default
D7 D6 D5 D4 D3 D2 D1 D0
CR2N[15:8]
CR2N[7:0]
RD
00000000
CR2N [15:0]
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CR2N [15:0] = Portion of full scale x 1.6472 * 214 (unsigned)
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CR2N[15:8]
Average Carrier Magnitude Noise (dBFS)
0xAD9B
0
0x5702
-6
0x2B9C
-12
0x15DB
-18
0x0AF4
-24
0x057D
-30
0x02C0
-36
0x0161
-42
0x00B1
-48
0x0059
-54
0x002C
-60
0x0016
-66
0x000B
-72
Table 100. Carrier 2 average magnitude noise
Addr
72H
73H
Register Name
Carrier 2 Signal Quality 1
Carrier 2 Signal Quality 0
R/W
Default
D7 D6 D5 D4 D3 D2 D1 D0
CR2Q[15:8]
CR2Q[7:0]
RD
00000000
CR2Q[15:0]: Carrier 2 quality.
ãã£ãªã¢2å質ãCR2Mã®CR2Nã«å¯¾ããæ¯ã表ãã¾ãããã£ãªã¢ã®S/Næ¯ã®æ¦ç®ã«ãªãã¾ãã
CR2Q = CR2M / CR2N x 26 (unsigned)
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CR2Q [15:0]
0xFFFF
0x4000
0x1000
0x0400
0x0100
0x0040
0x0010
0x0004
Ratio of CR2M to CR2N (dB)
>60
48
36
24
12
0
-12
-24
Table 101. Carrier 2 quality
MS0952-J-03
- 82 -
2013/12
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