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AD5354 Folha de dados(PDF) 6 Page - Asahi Kasei Microsystems |
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AD5354 Folha de dados(HTML) 6 Page - Asahi Kasei Microsystems |
6 / 19 page ASAHI KASEI [AK5354] MS0054-E-02 2004/12 - 6 - SWITCHING CHARACTERISTICS (Ta=25 °C; VA=2.1 ∼ 3.3V, VD=1.8 ∼ 3.3V; 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 Clock (LRCK) Frequency Duty Cycle fCLK tCLKL tCLKH fCLK tCLKL tCLKH fs 2.048 28 28 3.072 23 23 8 45 11.2896 16.9344 44.1 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 Edge to SDTO (MSB) BCLK “ ↓” to SDTO tBLK tBLKL tBLKH tBLR tDLR tDSS 312.5 130 130 -tBLKH+50 tBLKL-50 80 80 ns ns ns ns ns ns Control Interface Timing CCLK Period CCLK Pulse Width Low Pulse Width High CDATA Setup Time CDATA Hold Time CSN “H” Time CSN “ ↓” to CCLK “↑” CCLK “ ↑” to CSN “↑” tCCK tCCKL tCCKH tCDS tCDH tCSW tCSS tCSH 200(Note 7) 80 80 50 50 150(Note 7) 50(Note 7) 50 ns ns ns ns ns ns ns ns Reset / Calibration Timing PDN Pulse Width PDN “ ↑” to SDTO (Note 8) tPW tPWV 150 4128 ns 1/fs Note: 7. fs ≥ 19.6kHz. In the case of fs <19.6kHz, these three parameters must meet a relationship of (tCSW + tCSS + 7 × tCCK) > 1/(32 × fs) in addition to these specifications. For example, When tCCK=200ns and tCSS=50ns at fs=8kHz, tCSW(min) is 2457ns. When tCSW=150ns and tCSS=50ns fs=8kHz, tCCK(min) is 530ns. Note: 8. These cycles are the numbers of LRCK rising from PDN pin rising. |
Nº de peça semelhante - AD5354 |
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Descrição semelhante - AD5354 |
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