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ADF4208BRUZ-R7 Datasheet(PDF) 16 Page - Analog Devices |
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ADF4208BRUZ-R7 Datasheet(HTML) 16 Page - Analog Devices |
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16 / 24 page ![]() ADF4206/ADF4208 Rev. A | Page 16 of 24 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 C2 (1) C1 (0) R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 P9 P13 CONTROL BITS 14-BIT REFERENCE COUNTER, R DB21 RF1 REFERENCE COUNTER LATCH P10 P11 R14 R13 R12 .......... R3 R2 R1 DIVIDE RATIO 0 0 0 .......... 0 0 1 1 0 0 0 .......... 0 1 0 2 0 0 0 .......... 0 1 1 3 0 0 0 .......... 1 0 0 4 . . . .......... . . . . . . . .......... . . . . . . . .......... . . . . 1 1 1 .......... 1 0 0 16380 1 1 1 .......... 1 0 1 16381 1 1 1 .......... 1 1 0 16382 1 1 1 .......... 1 1 1 16383 P9 PD POLARITY 0NEGATIVE 1POSITIVE P13 ICP 01.25 mA 1 4.375 mA P4 P3 P12 P11 FROM RF2 R LATCH MUXOUT 0 0 0 0 LOGIC LOW STATE 0 0 0 1 RF2 ANALOG LOCK DETECT 0 X 1 0 RF2 REFERENCE DIVIDER OUTPUT 0 X 1 1 RF2 N DIVIDER OUTPUT 0 1 0 0 RF1 ANALOG LOCK DETECT 0 1 0 1 RF1/RF2 ANALOG LOCK DETECT 1 X 0 0 RF1 REFERENCE DIVIDER 1 X 0 1 RF1 N DIVIDER 1 0 1 0 FAST LOCK OUTPUT SWITCH ON AND CONNECTED TO MUXOUT 1 0 1 1 RF2 COUNTER RESET 1 1 1 0 RF1 COUNTER RESET 1 1 1 1 RF2 AND RF1 COUNTER RESET P12 P10 CHARGE PUMP OUTPUT 0NORMAL 1 THREE-STATE Figure 30. RF1 Reference Counter Latch Map |
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