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AK4456 Datasheet(PDF) 9 Page - Asahi Kasei Microsystems |
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AK4456 Datasheet(HTML) 9 Page - Asahi Kasei Microsystems |
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9 / 84 page  [AK4456] 015006886-E-00 2015/06 - 9 - No. Pin Name I/O Function PD State 22 AOUTR1N O Rch Negative Analog Output 1 Pin Hi-Z 23 AOUTR1P O Rch Positive Analog Output 1 Pin Hi-Z 24 AOUTL2P O Lch Positive Analog Output 2 Pin Hi-Z 25 AOUTL2N O Lch Negative Analog Output 2 Pin Hi-Z 26 VREFL2 - Negative Voltage Reference Input Pin, AVSS Hi-Z 27 VREFH2 - Positive Voltage Reference Input Pin, AVDD Hi-Z 28 AOUTR2N O Rch Negative Analog Output 2 Pin Hi-Z 29 AOUTR2P O Rch Positive Analog Output 2 Pin Hi-Z 30 AVSS - Analog Ground Pin － 31 AVDD - Analog Power Supply Pin, 3.0V5.5V － 32 AOUTL3P O Lch Positive Analog Output 3 Pin Hi-Z 33 AOUTL3N O Lch Positive Analog Output 3 Pin Hi-Z 34 VREFH3 - Positive Voltage Reference Input Pin, AVDD Hi-Z 35 VREFL3 - Negative Voltage Reference Input Pin, AVSS Hi-Z 36 AOUTR3N O Rch Negative Analog Output 3 Pin Hi-Z 37 AOUTR3P O Rch Positive Analog Output 3Pin Hi-Z 38 TST3 - This pin must be connected to AVSS. Hi-Z 39 TST4 - This pin must be connected to AVSS. Hi-Z 40 TST5 - This pin must be connected to AVSS. Hi-Z 41 TST6 - This pin must be connected to AVSS. Hi-Z 42 TST7 - This pin must be connected to AVSS. Hi-Z 43 TST8 - This pin must be connected to AVSS. Hi-Z 44 LDOE I Internal LDO Enable Pin. “L”: Disable, “H”: Enable Hi-Z 45 TVDD - Digital Power Supply Pin, 3.0V3.6V － 46 DVSS - Digital Ground Pin － 47 VDD18 O LDO Output Pin This pin should be connected to DVSS via 1.0µF. (Note 4) I 1.8V Power Input Pin (LDOE pin = “L”) 48 PDN I Power-Down & Reset Pin When this pin is “L”, the AK4456 is powered-down and the control registers are reset to default state. Hi-Z Note 2. All input pins except internal pull-up/down pins must not be allowed to float. Note 3. PCM mode and DSD mode are controlled by registers. Daisy Chain mode is controlled by both registers and pins. Note 4. This pin outputs DVSS when the LDOE pin = “H” and Hi-z when the LDOE pin = “L”. ■ Handling of Unused Pin The unused I/O pins must be connected appropriately. Classification Pin Name Setting Analog AOUTL1P/N, AOUTR1P/N AOUTL2P/N, AOUTR2P/N AOUTL3P/N, AOUTR3P/N These pins must be open. Digital DZF This pin must be open. SDTI1-3 These pins must be connected to DVSS |
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