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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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AD9912A/PCBZ Datenblatt(PDF) 31 Page - Analog Devices |
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AD9912A/PCBZ Datenblatt(HTML) 31 Page - Analog Devices |
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31 / 40 page  AD9912 Rev. F | Page 31 of 40 I/O REGISTER MAP All address and bit locations that are left blank in Table 12 are unused. Table 12. Addr (Hex) Type1 Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Default (Hex) Serial port configuration and part identification 0x0000 Serial config. SDO active LSB first (buffered) Soft reset Long instruction Long instruction Soft reset LSB first (buffered) SDO active 0x18 0x0001 Reserved 0x00 0x0002 RO Part ID Part ID 0x02 0x0003 RO 0x19 0x0004 Serial options Read buffer register 0x00 0x0005 AC Register update 0x00 Power-down and reset 0x0010 Power- down and enable PD HSTL driver Enable CMOS driver Enable output doubler PD SYSCLK PLL Full PD Digital PD 0xC0 or 0xD0 0x0011 Reserved 0x00 0x0012 M, AC Reset DDS reset 0x00 0x0013 M PD fund DDS S-div/2 reset S-divider reset 0x00 System clock 0x0020 N-divider N-divider, Bits[4:0] 0x12 0x0021 Reserved 0x00 0x0022 PLL parameters VCO auto range 2× refer- ence VCO range Charge pump current, Bits[1:0] 0x04 CMOS output divider (S-divider) 0x0100 Reserved 0x30 0x0101 to 0x0103 Reserved 0x00 0x0104 and 0x0105 S-divider S-divider, Bits[15:0] LSB: Register 0x0104 0x00 0x0106 Falling edge triggered S-divider/2 0x01 Frequency tuning word 0x01A0 to 0x01A5 Reserved 0x00 0x01A6 M FTW0 (frequency tuning word) FTW0, Bits[47:0] LSB: Register 0x01A6 0x00 0x01A7 M 0x00 0x01A8 M 0x00 0x01A9 M 0x00 0x01AA M Start-up cond. 0x01AB M Start-up cond. 0x01AC M Phase DDS phase word, Bits[7:0] 0x00 0x01AD M DDS phase word, Bits[13:8] 0x00 Doubler and output drivers 0x0200 HSTL driver OPOL (polarity) HSTL output doubler, Bits[1:0] 0x05 0x0201 CMOS driver CMOS mux 0x00 |
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