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WM8850 Datasheet(PDF) 24 Page - Wolfson Microelectronics plc |
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WM8850 Datasheet(HTML) 24 Page - Wolfson Microelectronics plc |
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24 / 223 page  WM8850 Pre-Production w PP, April 2011, Rev 3.2 24 Test Conditions AVDD = CPVDD = 5V, DBVDD = 3.3V, DCVDD = 1.8V, TA = +25 oC, 1kHz signal, fs = 48kHz, 24-bit data unless otherwise stated. PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Analogue References Positive Voltage Reference VREFP 0.9 * AVDD V Negative Voltage Reference VREFN 0.1 * AVDD V Midrail Voltage Reference VMID 0.5 * AVDD V Charge Pump Cap Level CPCAP 3.15 V Midrail Voltage Resistance RVMID AVDD to VMID or VMID to AGND VMID_SEL[1:0]=00 12.5 kΩ AVDD to VMID or VMID to AGND VMID_SEL[1:0]=01 75 kΩ AVDD to VMID or VMID to AGND VMID_SEL[1:0]=10 37.5 kΩ AVDD to VMID or VMID to AGND VMID_SEL[1:0]=11 375 kΩ Digital Input / Output Input High Level VIH 0.65 * DBVDD V Input Low Level VIL 0.35 * DBVDD V Output High Level VOH 0.9 * DBVDD V Output Low Level VOL 0.1 * DBVDD V Input Capacitance 7.5 pF Input Leakage -0.1 +0.1 µA |
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