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AD9540 Datasheet(PDF) 24 Page - Analog Devices |
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AD9540 Datasheet(HTML) 24 Page - Analog Devices |
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24 / 32 page  AD9540 Data Sheet Rev. C | Page 24 of 32 REGISTER MAP AND DESCRIPTION Table 4. Register Map Register Name (Serial Address) Bit Range Bit 7 (MSB) Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 (LSB) Default Value/ Profile Control Function Register 1 (CFR1) (0x00) [31:24] Open1 Open1 Open1 Open1 Open1 Open1 Open1 STATUS_Error 0x00 [23:16] Load SRR @ I/O_UPDATE Auto- Clear Freq. Accum. Auto- Clear Phase Accum. Enable Sine Output Clear Freq. Accum. Clear Phase Accum. Open1 Open1 0x00 [15:8] LSB First SDI/O Input Only Open1 Open1 Open1 Open1 Open1 Open1 0x00 [7:0] Digital Power- Down PFD Input Power- Down REFIN Cyrstal Enable SYNC_CLK Out Disable Auto Sync Multiple AD9540s Software Manual Sync Hardware Manual Sync High Speed Sync Enable 0x00 Control Function Register 2 (CFR2) (0x01) [39:32] DAC Power- Down Open1 Open1 Open1 Open1 Open1 Internal Band Gap Power- Down Internal CML Driver DRV_RSET 0x00 [31:24] Clock Driver Rising Edge [31:29] Clock Driver Falling Edge Control [28:26] PLL Lock Detect Enable PLL Lock Detect Mode 0x00 [23:16] RF Divider Power- Down RF Divider Ratio[22:21] Clock Driver Power- Down Clock Driver Input Select [19:18] Slew Rate Control RF Div CLK1 Mux Bit 0x78 [15:8] Divider N Control[15:12] Divider M Control[11:8] 0x00 [7:0] Open1 Open1 CP Polarity CP Full PD CP Quick PD CP Current Scale[2:0] 0x07 Rising Delta Frequency Tuning Word (RDFTW) (0x02) [23:16] Rising Delta Frequency Tuning Word [23:16] 0x00 [15:8] Rising Delta Frequency Tuning Word [15:8] 0x00 [7:0] Rising Delta Frequency Tuning Word [7:0] 0x00 Falling Delta Frequency Tuning Word (FDFTW) (0x03) [23:16] Falling Delta Frequency Tuning Word [23:16] 0x00 [15:8] Falling Delta Frequency Tuning Word [15:8] 0x00 [7:0] Falling Delta Frequency Tuning Word [7:0] 0x00 Rising Sweep Ramp Rate (RSRR) (0x04) [15:8] Rising Sweep Ramp Rate [15:8] 0x00 [7:0] Rising Sweep Ramp Rate [7:0] 0x00 Falling Sweep Ramp Rate (FSRR) (0x05) [15:8] Falling Sweep Ramp Rate [15:8] 0x00 [7:0] Falling Sweep Ramp Rate [7:0] 0x00 |
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