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AK4563AVF Datasheet(PDF) 8 Page - Asahi Kasei Microsystems |
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AK4563AVF Datasheet(HTML) 8 Page - Asahi Kasei Microsystems |
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8 / 39 page  ASAHI KASEI [AK4563A] MS0067-E-02 2004/12 - 8 - SWITCHING CHARASTERISTICS (Ta=25 °C; VA, VD=2.3 ∼ 3.0V, VT=1.5 ∼ 3.0V; C L=20pF) Parameter Symbol min typ max Units Control Clock Frequency Master Clock(MCLK) 256fs: Frequency Pulse Width Low Pulse Width High 384fs: Frequency Pulse Width Low Pulse Width High Channel Selection Clock (LRCK) frequency Duty fCLK tCLKL tCLKH fCLK tCLKL tCLKH fs 2.048 28 28 3.072 23 23 8 45 12.288 18.432 48 50 12.8 19.2 50 55 MHz ns ns MHz ns ns kHz % Audio Interface Timing BCLK Period BCLK Pulse Width Low Pulse Width High BCLK “ ↓” to LRCK LRCK to SDTO(MSB) (Except IIS mode) BCLK “ ↓” to SDTO SDTI Hold Time SDTI Setup Time tBLK tBLKL tBLKH tBLR tDLR tDSS tSDH tSDS 312.5 130 130 -tBLKH+50 50 50 tBLKL-50 80 80 ns ns ns ns ns ns ns ns Control Interface Timing CCLK Period CCLK Pulse Width Low Pulse Width High 1 Pulse Width High 2 CDTI Setup Time CDTI Hold Time CSN “H” Time CSN “ ↓” to CCLK “↑” CCLK “ ↑” to CSN “↑” CDTO Output Delay Time CSN “ ↑” to CDTO(Hi-Z)(Note 13) tCCK tCCKL tCCKH tCKH2 tCDS tCDH tCSW tCSS tCSH tDCD tCCZ 200(Note 12) 80 80 80 50 50 150(Note 12) 50(Note 12) 50 70 70 ns ns ns ns ns ns ns ns ns ns ns Reset/Calibration Timing PDN Pulse Width PDN “ ↑” to SDTO0/SDTO1 valid tPDW tPDV 150 4128 ns 1/fs Note 12. fs ≥ 22.4kHz. In the case of fs < 22.4kHz, these three parameters must meet a relationship of (tCSW + tCSS + 6 × tCCK) > 1/(32 × fs) in addition to these specifications. For example, when tCCK=200ns and tCSS=50ns at fs=8kHz, tCSW(min) is 2657ns. When tCSW=150ns and tCSS=50ns fs=8kHz, tCCK(min) is 618ns. When 08H or 09H address is read and fs < 39.1kHz, tCCK must meet a relationship tCCK > 1/(128 × fs) in addition to these specifications. For example, when fs=8kHz, tCCK(min) is 977ns. Note 13. RL=1kΩ/10% Change (Pulled-up operates for VT.) |
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