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AD9959 데이터시트(PDF) 2 Page - Analog Devices |
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AD9959 데이터시트(HTML) 2 Page - Analog Devices |
2 / 44 page AD9959 Rev. B | Page 2 of 44 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 3 Specifications..................................................................................... 4 Absolute Maximum Ratings............................................................ 8 ESD Caution.................................................................................. 8 Pin Configuration and Function Descriptions............................. 9 Typical Performance Characteristics ........................................... 11 Application Circuits ....................................................................... 14 Equivalent Input and Output Circuits ......................................... 17 Theory of Operation ...................................................................... 18 DDS Core..................................................................................... 18 Digital-to-Analog Converter .................................................... 18 Modes of Operation ....................................................................... 19 Channel Constraint Guidelines ................................................ 19 Power Supplies ............................................................................ 19 Single-Tone Mode ...................................................................... 19 Reference Clock Modes ............................................................. 20 Scalable DAC Reference Current Control Mode ................... 21 Power-Down Functions............................................................. 21 Modulation Mode....................................................................... 21 Modulation Using SDIO_x Pins for RU/RD........................... 24 Linear Sweep Mode.................................................................... 25 Linear Sweep No-Dwell Mode ................................................. 26 Sweep and Phase Accumulator Clearing Functions .............. 27 Output Amplitude Control Mode............................................ 28 Synchronizing Multiple AD9959 Devices ................................... 29 Automatic Mode Synchronization ........................................... 29 Manual Software Mode Synchronization................................ 29 Manual Hardware Mode Synchronization.............................. 29 I/O_UPDATE, SYNC_CLK, and System Clock Relationships............................................................................... 30 Serial I/O Port ................................................................................. 31 Overview ..................................................................................... 31 Instruction Byte Description .................................................... 32 Serial I/O Port Pin Description ................................................ 32 Serial I/O Port Function Description ...................................... 32 MSB/LSB Transfer Description ................................................ 32 Serial I/O Modes of Operation................................................. 33 Register Maps and Bit Descriptions............................................. 36 Register Maps.............................................................................. 36 Descriptions for Control Registers .......................................... 39 Descriptions for Channel Registers ......................................... 41 Outline Dimensions ....................................................................... 44 Ordering Guide .......................................................................... 44 REVISION HISTORY 7/08—Rev. A to Rev. B Added Pin Profile Toggle Rate Parameter in Table 1................... 6 Changes to Figure 24...................................................................... 14 Changes to Figure 31...................................................................... 17 Changes to Reference Clock Input Circuitry Section................ 20 Changes to Operation Section ...................................................... 29 Changes to Figure 40...................................................................... 30 Changes to Serial Data I/O (SDIO_0, SDIO_1, SDIO_3) Section.............................................................................................. 32 Changes to Table 38........................................................................ 43 Added Exposed Pad Notation to Outline Dimensions ............. 44 3/08—Rev. 0 to Rev. A Changes to Features.......................................................................... 1 Inserted Figure 1 ............................................................................... 1 Changes to Input Level Specification............................................. 4 Changes to Layout ............................................................................ 8 Changes to Table 3............................................................................ 9 Added Equivalent Input and Output Circuits Section .............. 17 Changes to Figure 35...................................................................... 21 Changes to Setting the Slope of the Linear Sweep Section ....... 25 Changes to Frequency Linear Sweep Example: AFP Bits = 10 Section.............................................................................................. 26 Changes to Figure 37...................................................................... 26 Changes to Figure 38 and Figure 39............................................. 27 Added Table 25 ............................................................................... 31 Changes to Figure 41...................................................................... 31 Changes to Figure 42...................................................................... 32 Added Example Instruction Byte Section ................................... 32 Added Table 27 ............................................................................... 33 Changes to Figure 46, Figure 47, Figure 48, and Figure 49....... 35 Changes to Register Maps and Bit Descriptions Section .......... 36 Added Endnote 1 to Table 30........................................................ 38 Changes to Ordering Guide .......................................................... 44 7/05—Revision 0: Initial Version |
유사한 부품 번호 - AD9959_15 |
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유사한 설명 - AD9959_15 |
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