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AK4141 Datasheet, PDF (87/96 Pages) Asahi Kasei Microsystems – NICAM/A2/EIA-J Digital Stereo Decoder | |||
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CONFIDENTIAL
[AK4141]
Addr
8BH
Register Name
Carrier Magnitude ASD Threshold
R/W
Default
D7 D6 D5 D4 D3 D2 D1 D0
ASDMT[7:0]
R/W
00011001
ASDMT[7:0]
ASDç¨ãã£ãªã¢å¼·åº¦ã¹ã¬ã·ã§ã«ãã8-bitã¹ã¬ã·ã§ã«ãã¯ä¸ä½ã« â0âãæ¡å¼µããã£ãªã¢1åã³2ã®å¹³å強度ã®ä¸ä½11bit
(ã»ããªã³ã°ã¿ã¤ã ã1/4ã§ãããã¨ãé¤ãã¦CR1M, CR2Mã¨åããã®)ã¨æ¯è¼ããã¾ãã
Addr
8CH
Register Name
Carrier Freq ASD Threshold
R/W
Default
D7 D6 D5 D4 D3 D2 D1 D0
ASDFT[7:0]
R/W
00011000
ASDFT[7:0]
ASDç¨ãã£ãªã¢å¹³åå¨æ³¢æ°ã¹ã¬ã·ã§ã«ãã8-bitã¹ã¬ã·ã§ã«ãã¯ä¸ä½ã« â0âãæ¡å¼µããã£ãªã¢1åã³2ã®å¹³åå¨æ³¢æ°ã®
ä¸ä½10bit (CR1F[15:6], CR2F[15:6])ã¨æ¯è¼ããã¾ãã
Addr
8DH
Register Name
Carrier FM Quality ASD Threshold
R/W
Default
D7 D6 D5 D4 D3 D2 D1 D0
ASQT[7:0]
R/W
00000000
ASQT[7:0]
ASDç¨ãã£ãªã¢FMå質ã¹ã¬ã·ã§ã«ãã8-bitã¹ã¬ã·ã§ã«ãã¯ä¸ä½ã« â0âãæ¡å¼µããã£ãªã¢1åã³2ã®FMå質
ã®ä¸ä½13bit (CR1Q[15:3], CR2Q[15:3])ã¨æ¯è¼ããã¾ã(Figure 29, Table 105)ã
Signal
CR1Q[15:3]
Reference
00000 ASQT[7:0]
Signal ⥠Reference
Compare
Carrier1Quality Good
Figure 29. Carrier1 Quality Threshold
MS0952-J-03
- 87 -
2013/12
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