Continuous Wave Phase-aligned Multitone Generator: DC-to-6-GHz RF-Sampling DAC Reference Design
TIDA-01084
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Key Document
Description
The TIDA-01084 reference design demonstrates the use of RF sampling DAC to generate continuous phase-aligned multitone waveforms. With four 48-bit independent NCOs, the 14-bit, 9GSPS DAC38RF83 can generate four CW tones placed anywhere within the first Nyquist zone or up to 6 GHz in the second.
This reference design covers the theory of operations, explanation of the GUI, and directions for programming NCOs to generate the tones without the requirement of an external pattern generator. This design demonstrates an easy-to-use method which greatly simplifies and reduces the bill of materials (BOM) for continuos waveform generation.
Features
- Generates multiple CW tones in the first nyquist and up to 6 GHz supported in the second
- Digital Single-Side Band Upconversion
- Multitone phase alignment synchronization
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TI Devices (12)
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| CSD18532Q5B |
60V, N ch NexFET MOSFET™, single SON5x6, 3.2mOhm |
MOSFETs |
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| DAC38RF83 |
Dual-Channel, 14-Bit, 9-GSPS, 6x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC) |
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| LM27761 |
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| LMK04828 |
Ultra-low jitter synthesizer & jitter cleaner |
Clocks & timing |
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| LP5907 |
250-mA, low-noise, high-PSRR, ultra-low-dropout voltage regulator with low IQ and enable |
Power management |
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| TPS2400 |
5.5-V over voltage protection controller with 100-V input transient protection |
Power switches |
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| TPS62085 |
3-A Step-Down Converter with DCS-Control and Hiccup Short Circuit Protection in 2x2 HotRod Package |
Step-down (buck) regulators |
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| TPS62095 |
4A Synchronous Step Down Converter with DCS Control |
Step-down (buck) regulators |
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| TPS74401 |
3-A, low-VIN (0.8-V), low-noise, high-PSRR, adjustable ultra-low-dropout voltage regulator |
Power management |
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| TPS7A47 |
1-A, 36-V, low-noise, high-PSRR, low-dropout voltage regulator with enable |
Power management |
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| TPS7A8101 |
1-A, high-PSRR, adjustable ultra-low-dropout voltage regulator with enable |
Power management |
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| TPS7A85 |
4-A, low-VIN, low-noise, ultra-low-dropout voltage regulator with power good with high-accuracy |
Power management |
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CAD/CAE symbols
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Technical documentation
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User guides (1)
| Title | Type | Size (KB) | Date |
| | PDF | 1929 |
30 Mar 2016
|
Design files (6)
| | ZIP | 976 |
10 Jan 2017
|
| | ZIP | 2162 |
10 Jan 2017
|
| | PDF | 2451 |
10 Jan 2017
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| | PDF | 112 |
10 Jan 2017
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| | PDF | 304 |
10 Jan 2017
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| | PDF | 494 |
10 Jan 2017
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