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MAX2163 Arkusz danych(PDF) 14 Page - Maxim Integrated Products |
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MAX2163 Arkusz danych(HTML) 14 Page - Maxim Integrated Products |
14 / 23 page ISDB-T 1-Segment Tuner 14 ______________________________________________________________________________________ BIT NAME BIT LOCATION (0 = LSB) DEFAULT FUNCTION CP[1:0] 7, 6 00 Sets the charge-pump current. 00 = 1.5mA. 01 = 2mA. 10 = 2.5mA. 11 = 3mA. X 5 0 Factory use only. Must be programmed to 0 upon power-up. DRFD 4 1 Disable RF Detector 0 = Enables the wideband RF overload detector. 1 = Disables the wideband RF overload detector. RFDA[1:0] 3, 2 11 Sets the RF overload detector attack point (subtract 6dB to each if PDIQ = 0). 00 = +37dB relative to IF attack point setting. 01 = +34dB relative to IF attack point setting. 10 = +31dB relative to IF attack point setting. 11* = +28dB relative to IF attack point setting. *Only 11 is factory tested. X 1 1 Factory use only. Must be programmed to 1 upon power-up. R0 0 0 LSB of reference divider number Table 9. R-Divider LSB/CP Register Note: When changing R-divider value, both registers R-Divider MSB and R-Divider LSB must be loaded as they are double buffered. BIT NAME BIT LOCATION (0 = LSB) DEFAULT FUNCTION RFVB 7 0 Bypass 3rd-stage RFVGA. 0 = Enables 3rd-stage RFVGA. 1 = Disables the 3rd-stage RFVGA. RFFB 6 0 Bypass integrated RF filter. 0 = Enables optional RF filter. 1 = Disables optional RF filter. HSLS 5 0 Selects between high-side and low-side LO injection. 1 = Low-side injection. 0 = High-side injection. X 4, 3, 2, 1, 0 0 Factory use only. Must be programmed to 0 upon power-up. Table 7. MODE Register BIT NAME BIT LOCATION (0 = LSB) DEFAULT FUNCTION R[8:1] 7, 6, 5, 4, 3, 2, 1, 0 00111111 Sets the PLL reference divider (R) number. Default R divide value is 126 decimal. R can range from 16 to 511 decimal. Table 8. R-Divider MSB Register Note: When changing R-divider value, both registers R-Divider MSB and R-Divider LSB must be loaded as they are double buffered. |
Podobny numer części - MAX2163 |
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Podobny opis - MAX2163 |
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