データシートサーチシステム |
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AK7755EN データシート(PDF) 31 Page - Asahi Kasei Microsystems |
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AK7755EN データシート(HTML) 31 Page - Asahi Kasei Microsystems |
31 / 109 page [AK7755] 014006643-E-00 2014/10 - 31 - CONT00: Clock Setting 1, Analog Input Setting Write during clock reset. W R Name D7 D6 D5 D4 D3 D2 D1 D0 Default C0h 40h CONT00 0 CKM[2] CKM[1] CKM[0] AINE DFS[2] DFS[1] DFS[0] 00h D6, D5, D4: CKM[2:0] Clock Mode Setting CKM mode CKM [2:0] Master Slave Main Clock fs System Clock 0 000 Master XTI=12.288MHz fixed fs=8~96kHz XTI (default) 1 001 Master XTI=18.432MHz fixed fs=8~96kHz XTI 2 010 Slave XTI=12.288MHz fixed fs=8~96kHz XTI, BICK, LRCK 3 011 Slave BICK fs=8~96kHz BICK, LRCK 5 101 Slave BICK fs=16kHz BICK, LRCK(fs=8kHz) TDM256 bit (CONT02: D7) = “1” cannot be used in CKM mode5. D3: AINE Analog Input Setting (IN1/INP1, IN2/INN1, IN3/INP2, IN4/INN2 pin) 0: Not Using Analog Input (default) 1: Using Analog Input Set AINE bit to “1” first before other control register settings when using the IN1/INP1, IN2/INN1, IN3/INP2 and IN4/INN2 pins as analog inputs. The AK7755 starts charging to a capacitor connected to each pin by this setting. Set AINE bit to “0” when using digital microphones (DMIC1 or DMIC2 bit (CONT1E: D7, D4)= “1”). D2, D1, D0: DFS[2:0] Sampling Frequency DFS mode DFS[2:0] fs 0 000 8kHz (default) 1 001 12kHz 2 010 16kHz 3 011 24kHz 4 100 32kHz 5 101 48kHz 6 110 96kHz 7 111 N/A Multiply 44.1/48 to calculate the values for multiple sampling frequencies of 44.1kHz. Write “0” into the “0” registers. |
同様の部品番号 - AK7755EN_16 |
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同様の説明 - AK7755EN_16 |
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