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AKD4392-SB Datasheet(PDF) 4 Page - Asahi Kasei Microsystems |
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AKD4392-SB Datasheet(HTML) 4 Page - Asahi Kasei Microsystems |
4 / 32 page [AKD4392-SB] <KM099800> 4 2009/06 The frequency of the master clock output is set by OCKS0 and OCKS1 as shown in Table 4. OCKS1 OCKS0 MCLK Frequency L L 256fs @fs=88.2/96kHz H L 512fs @fs=32/44.1/48kHz (Default) H H 128fs @fs=176.4/192kHz Table 4. MCLK Clock SW3 setting [SW3](PDN): Reset of AK4392. Select “H” during operation . External Analog Circuit The differential output circuit and LPF is implemented on board. The differential outputs of AK4392 is buffered by non-inverted circuit(2 nd order LPF, fc=106.4k, Q=0.698, G=+3.9dB). LPF adds differential outputs(1 st order LPF, fc=284k, G=-0.84dB). LME49710NA is used for op-amp on this board that has low noise and high voltage torelance characteristics. Analog signal is output via BNC connectors on the board. The output level is about 2.8Vrms (typ@VREF=5.0V) by BNC. 220 100u 220 AOUTL- 6.8n 680 6.8n 6 4 3 2 7 10u 0.1u 0.1u 10u 10u LME49710NA 220 100u 220 AOUTL+ 6.8n 680 6.8n 6 4 3 2 7 10u 0.1u 0.1u 10u LME49710NA 0.1u + LME49710NA 0.1u 10u 100 4 3 2 1.0n 620 620 560 7 + + + + - + - + + + - + + 1.0n Lch -15 +15 6 Figure 2. External Analog Filter AKD4392-SB Filter 40kHz (Double) 80kHz (quad) Internal Filter -0.3dB -1dB External LPF -0.12dB -1.3dB Total -0.42dB -2.3dB This table shows typical value. Table 5. Frequency Responses |
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