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AD9877 Datasheet(PDF) 19 Page - Analog Devices |
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AD9877 Datasheet(HTML) 19 Page - Analog Devices |
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19 / 37 page  AD9877 Rev. B | Page 18 of 36 REGISTER MAP AND BIT DEFINITIONS Table 4. Register Map1 Address (Hex) Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Default (Hex) Type 0x00 SDIO Bidirectional LSB First RESET OSCIN Multiplier M [4] 08 Read/write 0x01 PLL Lock Detect SYSCLK Divider N = 3 (N = 4 Default) MCLK Divider R [5:0] 00 Read/write 0x02 Power- Down PLL Power- Down DAC Tx Power-Down Digital Tx Power- Down 12-Bit ADC Power-Down 12-Bit ADC Reference 0 0 Power- Down 8-Bit ADC 00 Read/write 0x03 Σ-Δ Output [0] Control Word [3:0] LSB 0 0 0 Flag [0] Enable 00 Read/write Σ-Δ 0x04 Flag [0] Σ-Δ Output 0 Control Word [11:4] MSB 00 Read/write Σ-Δ 0x05 Σ-Δ Output [0] Control Word [3:0] LSB 0 0 0 Flag [1] Enable 00 Read/write Σ-Δ 0x06 Flag [1] Σ-Δ Output 1 Control Word [11:4] MSB 00 Read/write Σ-Δ 0x07 0 0 0 0 0 0 0 0 00 Read/write Tx 0x08 ADC Clock Select 0 0 Power- Down RxSYNC and 8- Bit ADC Clock 0 0 0 0 80 Read/write ADC 0x09 0 0 0 0 0 0 0 0 00 Read/write 0x0A 0 0 0 0 0 0 0 0 00 Read only 0x0B 0 0 0 0 0 0 0 0 00 Read/write 0x0C 0 0 0 1 Version [3:0] 10 Read only 0x0D Tx Frequency Tuning Word Profile 3 LSBs [1:0] Tx Frequency Tuning Word Profile 2 LSBs [1:0] Tx Frequency Tuning Word Profile 1 LSB [1:0] Tx Frequency Tuning Word Profile 3 LSBs [1:0] 00 Read/write Tx 0x0E 0 0 0 0 DAC Gain Control [3:0] 00 Read/write Tx 0x0F 0 0 Profile Select [1:0] CA Interface Mode Select 0 Spectral Inversion Tx Single- Tone Tx Mode 00 Read/write Tx 0x10 Tx Frequency Turning Word Profile 0 [9:2] 00 Read/write Tx 0x11 Tx Frequency Turning Word Profile 0 [17:10] 00 Read/write Tx 0x12 Tx Frequency Turning Word Profile 0 [25:18] 00 Read/write Tx 0x13 CA Interface Transmit Word Control Profile 0 [7:4] DAC Gain Control Profile 0 [3:0] 00 Read/write Tx 0x14 Tx Frequency Turning Word Profile 1 [9:2] 00 Read/write Tx 0x15 Tx Frequency Turning Word Profile 1 [9:2] 00 Read/write Tx 0x16 Tx Frequency Turning Word Profile 1 [9:2] 00 Read/write Tx 0x17 CA Interface Transmit Word Control Profile 1 [7:4] DAC Gain Control Profile 1 [3:0] 00 Read/write Tx 0x18 Tx Frequency Turning Word Profile 2 [9:2] 00 Read/write Tx 0x19 Tx Frequency Turning Word Profile 2 [9:2] 00 Read/write Tx 1A Tx Frequency Turning Word Profile 2 [9:2] 00 Read/write Tx 0x1B CA Interface Transmit Word Control Profile 2 [7:4] DAC Gain Control Profile 2 [3:0] 00 Read/write Tx 0x1C Tx Frequency Turning Word Profile 3 [9:2] 00 Read/write Tx 0x1D Tx Frequency Turning Word Profile 3 [9:2] 00 Read/write Tx 0x1E Tx Frequency Turning Word Profile 3 [9:2] 00 Read/write Tx 0x1F CA Interface Transmit Word Control Profile 3 [7:4] DAC Gain Control Profile 3 [3:0] 00 Read/write Tx 1 Register bits denoted with 0 must be programmed with a 0 each time that register is written. |
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