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ADRF6750ACPZ-R7 数据表(PDF) 29 Page - Analog Devices |
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ADRF6750ACPZ-R7 数据表(HTML) 29 Page - Analog Devices |
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29 / 40 page ![]() ADRF6750 Rev. A | Page 29 of 40 Table 14. Register CR9 (Address 0x09), Charge Pump Current Setting Bit Description [7:4] Charge pump current1 0000 = 0.31 mA (default) 0001 = 0.63 mA 0010 = 0.94 mA 0011 = 1.25 mA 0100 = 1.57 mA 0101 = 1.88 mA 0110 = 2.19 mA 0111 = 2.50 mA 1000 = 2.81 mA 1001 = 3.13 mA 1010 = 3.44 mA 1011 = 3.75 mA 1100 = 4.06 mA 1101 = 4.38 mA 1110 = 4.69 mA 1111 = 5.00 mA 3 Reserved 2 Reserved 1 Reserved 0 Reserved 1 Double-buffered. Loaded on the write to Register CR0. Table 15. Register CR10 (Address 0x0A), Reference Frequency Control Bit Description 7 Reserved1 6 R/2 divider enable1 0 = bypass R/2 divider (default) 1 = enable R/2 divider 5 R-doubler enable1 0 = disable doubler (default) 1 = enable doubler [4:0] 5-bit R-divider setting1 00000 = divide by 32 (default) 00001 = divide by 1 00010 = divide by 2 … 11110 = divide by 30 11111 = divide by 31 1 Double-buffered. Loaded on the write to Register CR0. Table 16. Register CR12 (Address 0x0C), PLL Power-Up Bit Description 7 Reserved 6 Reserved 5 Reserved 4 Reserved 3 Reserved 2 Power down PLL 0 = power up PLL (default) 1 = power down PLL 1 Reserved 0 Reserved Table 17. Register CR14 (Address 0x0E), TXDIS Control Bit Description 7 Reserved 6 Reserved 5 TxDis_attenuator 0 = attenuator always enabled (default) 1 = disable attenuator when TXDIS = 1 4 TxDis_LOBuf 0 = LOBuf always enabled (default) 1 = disable LOBuf when TXDIS = 1 3 TxDis_QuadDiv 0 = QuadDiv always enabled (default) 1 = disable QuadDiv when TXDIS = 1 2 Reserved 1 TxDis_LOX2 0 = LOX2 always enabled (default) 1 = Disable LOX2 when TXDIS = 1 0 TxDis_RFMON 0 = RFMON always enabled (default) 1 = Disable RFMON when TXDIS = 1 Table 18. Register CR23 (Address 0x17), Lock Detector Control Bit Description 7 Reserved 6 Reserved 5 Reserved 4 Lock detector enable 0 = lock detector disabled (default) 1 = lock detector enabled 3 Lock detector up/down count 0 = 3072 up/down pulses 1 = 2048 up/down pulses 2 Lock detector precision 0 = low, coarse (16 ns) 1 = high, fine (6 ns) 1 Reserved 0 Reserved |
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