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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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AD6674 Datenblatt(PDF) 87 Page - Analog Devices |
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AD6674 Datenblatt(HTML) 87 Page - Analog Devices |
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87 / 97 page  AD6674 Data Sheet Rev. C | Page 86 of 96 Reg. Addr. (Hex) Register Name Bit 7 (MSB) Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 (LSB) Default Notes 0x27A SPORT over JESD204B input selection (local) 0 0 0 0 0 0 Peak detector 0 = disabled 1 = enabled 0 0x02 Digital Downconverter (DDC) Function Registers—see the Digital Downconverter (DDC) section 0x300 DDC synchro- nization control 0 0 0 DDC NCO soft reset 0 = normal operation 1 = reset 0 0 Synchronization mode 00 = disabled 01 = continuous 11 = one shot 0x00 0x310 DDC 0 control Mixer select 0 = real mixer 1 = complex mixer Gain select 0 = 0 dB gain 1 = 6 dB gain IF mode 00 = variable IF mode (mixers and NCO enabled) 01 = 0 Hz IF mode (mixer bypassed, NCO disabled) 10 = fADC/4 Hz IF mode (fADC/4 downmixing mode) 11 = test mode (mixer inputs forced to +FS, NCO enabled) Complex to real enable 0 = disabled 1 = enabled 0 Decimation ratio select (complex to real disabled) 11 = decimate by 2 00 = decimate by 4 01 = decimate by 8 10 = decimate by 16 (complex to real enabled) 11 = decimate by 1 00 = decimate by 2 01 = decimate by 4 10 = decimate by 8 0x00 0x311 DDC 0 input selection 0 0 0 0 0 Q input select 0 = Ch. A 1 = Ch. B 0 I input select 0 = Ch. A 1 = Ch. B 0x00 0x314 DDC 0 frequency LSB DDC 0 NCO FTW[7:0] twos complement 0x00 0x315 DDC 0 frequency MSB X X X X DDC 0 NCO FTW[11:8] twos complement 0x00 0x320 DDC 0 phase LSB DDC 0 NCO POW[7:0] twos complement 0x00 0x321 DDC 0 phase MSB X X X X DDC0 NCO POW[11:8] twos complement 0x00 0x327 DDC 0 output test mode selection 0 0 0 0 0 Q output test mode enable 0 = disabled 1 = enabled from Ch. B 0 I output test mode enable 0 = disabled 1 = enabled from Ch. A 0x00 0x330 DDC 1 control Mixer select 0 = real mixer 1 = complex mixer Gain select 0 = 0 dB gain 1 = 6 dB gain IF mode 00 = variable IF mode (mixers and NCO enabled) 01 = 0 Hz IF mode (mixer bypassed, NCO disabled) 10 = fADC/4 Hz IF mode (fADC/4 downmixing mode) 11 = test mode (mixer inputs forced to +FS, NCO enabled) Complex to real enable 0 = disabled 1 = enabled 0 Decimation ratio select (complex to real disabled) 11 = decimate by 2 00 = decimate by 4 01 = decimate by 8 10 = decimate by 16 (complex to real enabled) 11 = decimate by 1 00 = decimate by 2 01 = decimate by 4 10 = decimate by 8 0x00 0x331 DDC 1 input selection 0 0 0 0 0 Q input select 0 = Ch. A 1 = Ch. B 0 I input select 0 = Ch. A 1 = Ch. B 0x05 |
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