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AK4141 Datasheet, PDF (81/96 Pages) Asahi Kasei Microsystems – NICAM/A2/EIA-J Digital Stereo Decoder | |||
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CONFIDENTIAL
[AK4141]
Addr
6CH
6DH
Register Name
Carrier 2 Average Frequency 1
Carrier 2 Average Frequency 0
R/W
Default
D7 D6 D5 D4 D3 D2 D1 D0
CR2F[15:8]
CR2F[7:0]
RD
00000000
CR2F[15:0]
ãã£ãªã¢2å¹³åå¨æ³¢æ°ãåç®ä¸ã®å¨æ³¢æ°ã¨å®éã®å¨æ³¢æ°ã¨ã®å·®ã表ãã¾ãã(2âs complement.)
Ferr = CR2F x Fs x 2-20
(Hz)
Fac = Fc + Ferr
(Hz)
Ferr = å¨æ³¢æ°ã¨ã©ã¼. åç®ä¸ã®å¨æ³¢æ°ã¨å®éã®å¨æ³¢æ°ã¨ã®å·®(Hz)
Fac =å®éã®ãã£ãªã¢å¨æ³¢æ° (Hz)
Fc =DM2Fã§è¨å®ãããåç®ä¸ã®å¨æ³¢æ° (Hz)
Fs = ãµã³ãã«ã¬ã¼ã(Hz), ãµã³ãã«ã¬ã¼ãã¬ã¸ã¹ã¿åç
§(Table 45)ã
ã¬ã¸ã¹ã¿ã¯highãã¤ããå
ã«readãã¦ä¸ãããlowãã¤ãã¯highãã¤ããreadãããæã ãæ´æ°ããã¾ãã
Addr
6EH
6FH
Register Name
Carrier 2 Average Magnitude 1
Carrier 2 Average Magnitude 0
R/W
Default
D7 D6 D5 D4 D3 D2 D1 D0
CR2M[15:8]
CR2M[7:0]
RD
00000000
CR2M [15:0]
ãã£ãªã¢2å¹³å強度
CR2M = Portion of full scale x 1.6472 x 214 (unsigned)
ã¬ã¸ã¹ã¿ã¯highãã¤ããå
ã«readãã¦ä¸ãããlowãã¤ãã¯highãã¤ããreadãããæã ãæ´æ°ããã¾ãã
CR2M [15:0]
0xAD9B
0x7AE8
0x5702
0x3D99
0x2B9C
0x1EDF
0x15DB
0x0F79
0x0AF4
0x07C1
0x057D
Average Carrier Magnitude (dBFS)
0
-3
-6
-9
-12
-15
-18
-21
-24
-27
-30
Table 99. Carrier 2 average magnitude
MS0952-J-03
- 81 -
2013/12
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