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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STUW81300 датащи(PDF) 39 Page - STMicroelectronics |
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STUW81300 датащи(HTML) 39 Page - STMicroelectronics |
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39 / 63 page  DS11314 Rev 7 39/63 STuW81300 Circuit description 58 ST3 Register Address: STuW81300BaseAddress + 0x03 Type: R/W Applicability: Double buffered (based upon DBR bit setting) Description: R divider, CP leakage, CP down-split pulse, Ref. Path selection, Device power down 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 76 54321 0 RW RW RW RW RW RW RW RW RW [26] DBR: Double buffering bit enable; at ‘1’ the register is buffered and transferred only once the master register ST0 is written [25] PD: device power down; at ‘1’ put OFF all blocks (except LDOs) [24] CP_LEAK_x2: double Charge Pump leakage current bit 0: set standard leakage current (10 µA step) 1: set doubled leakage current (20 µA step) [23:19] CP_LEAK: Set Charge Pump leakage current value (0 to 620 μA; step 10 μA or 20 μA base upon CP_LEAK_x2 setting) 00000: (0) set ILEAK = 0 (default) 00001: (1) set ILEAK = 10 μA (ILEAK = 20 μA if CP_LEAK_x2 = 1) 00010: (2) set ILEAK = 20 μA (ILEAK = 40 μA if CP_LEAK_x2 = 1) 11110: (30) set ILEAK = 300 μA (ILEAK = 600 μA if CP_LEAK_x2 = 1) 11111: (31) set ILEAK = 310 μA (ILEAK = 620 μA if CP_LEAK_x2 = 1) [18] CP_LEAK_DIR: set direction of the leakage current 0: set down-leakage (current sink) 1: set up-leakage (current source) [17] DNSPLIT_EN: at ‘1’ enables down-split pulse current; current level set by PFD_DEL[1:0] in register ST0 |
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