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WM8321 数据表(PDF) 74 Page - Wolfson Microelectronics plc |
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WM8321 数据表(HTML) 74 Page - Wolfson Microelectronics plc |
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74 / 253 page  WM8321 Production Data w PD, February 2012, Rev 4.0 74 ADDRESS BIT LABEL DEFAULT DESCRIPTION DC2 DVS Control 6:0 DC2_DVS_V SEL [6:0] 000_0000 Same as DC-DC1 R16480 (4060h) DC3 Control 1 12 DC3_PHASE 0 Same as DC-DC1 7 DC3_FLT 0 Same as DC-DC1 5:4 DC3_SOFT_ START [1:0] 01 DC-DC3 Soft-Start Control (Duration in each of the 3 intermediate startup current limiting steps.) 00 = Immediate start-up 01 = 512us steps 10 = 4.096ms steps 11 = 32.768ms steps 3:2 DC3_STNBY _LIM [1:0] 01 DC-DC3 Current Limit Sets the maximum DC output current in Hysteretic Mode. 00 = 50mA 01 = 100mA 10 = 200mA 11 = 400mA Protected by user key 1:0 DC3_CAP [1:0] 00 DC-DC3 Output Capacitor 00 = 10uF to 20uF 01 = 10uF to 20uF 10 = 22uF to 45uF 11 = 47uF to 100uF This field can only be written to by loading configuration settings from OTP/ICE. In all other cases, this field is Read Only. R16481 (4061h) DC3 Control 2 15:14 DC3_ERR_A CT [1:0] 00 Same as DC-DC1 12:11 DC3_HWC_ SRC [1:0] 00 Same as DC-DC1 10 DC3_HWC_ VSEL 0 Same as DC-DC1 9:8 DC3_HWC_ MODE [1:0] 11 Same as DC-DC1 7 DC3_OVP 0 DC-DC3 Overvoltage Protection 0 = Disabled 1 = Enabled R16482 (4062h) DC3 ON Config 15:13 DC3_ON_SL OT [2:0] 000 Same as DC-DC1 9:8 DC3_ON_M ODE [1:0] 00 Same as DC-DC1 6:2 DC3_ON_VS EL [6:2] 00000 DC-DC3 ON Voltage select |
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