High Bandwidth, High Frequency Transmitter Reference Design
TIDA-00335
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Description
This design illustrates the circuit modifications required to support high bandwidth and high frequency applications using current source DACs like the DAC38J84 with the TRF3704 modulator. The TRF3704 is a 6 GHz modulator capable of supporting wide BB bandwidths. The DAC38J84 is a 2.5 GSPS converter capable of supporting 600 MHz of baseband bandwidth. This combination facilitates operating at frequencies and bandwidths previously unattainable for high end communication systems.
Features
- Supports 600 MHz of I/Q bandwidth corresponding to 1.2 GHz of RF bandwidth
- Operation up to 6 GHz with good gain and linearity performance
- Provides proper translation network to interface DAC to the modulator
- Provides contingency for LPF between DAC and Modulator
- Introduces modifications to ensure flat BB response for high bandwidth applications
- TSW38J84 is an orderable reference design with GUI; modifications within this document can be made on that EVM.
See the Important Notice and Disclaimer covering reference designs and other TI resources.
Schematic/Block Diagram
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Test Data
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TI Devices (7)
Order samples, get tools and find more information on the TI products in this reference design.
| Sample & Buy |
Design Kits & Evaluation Modules |
| DAC37J82 |
Dual-Channel, 16-Bit, 1.6-GSPS, 1x-16x Interpolating Digital-to-Analog Converter (DAC) |
Digital-to-analog converters (DACs) |
Sample & Buy |
View Design Kits & Evaluation Modules |
| DAC37J84 |
Quad-Channel, 16-Bit, 1.6-GSPS, 1x-16x Interpolating Digital-to-Analog Converter (DAC) |
Digital-to-analog converters (DACs) |
Sample & Buy |
View Design Kits & Evaluation Modules |
| DAC38J82 |
Dual-Channel, 16-Bit, 2.5-GSPS, 1x-16x Interpolating Digital-to-Analog Converter (DAC) |
Digital-to-analog converters (DACs) |
Sample & Buy |
View Design Kits & Evaluation Modules |
| DAC38J84 |
Quad-Channel, 16-Bit, 2.5-GSPS, 1x-16x Interpolating Digital-to-Analog Converter (DAC) |
Digital-to-analog converters (DACs) |
Sample & Buy |
View Design Kits & Evaluation Modules |
| DAC39J82 |
Dual-Channel, 16-Bit, 2.8-GSPS, 1x-16x Interpolating Digital-to-Analog Converter (DAC) |
Digital-to-analog converters (DACs) |
Sample & Buy |
View Design Kits & Evaluation Modules |
| DAC39J84 |
Quad-Channel, 16-Bit, 2.8-GSPS, 1x-16x Interpolating Digital-to-Analog Converter (DAC) |
Digital-to-analog converters (DACs) |
Sample & Buy |
View Design Kits & Evaluation Modules |
| TRF370417 |
50MHz to 6.0 GHz Quadrature Modulator, 1.7V common-mode voltage |
Mixers & modulators |
Sample & Buy |
View Design Kits & Evaluation Modules |
CAD/CAE symbols
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Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.
Step 1: Download and install the free download.
Step 2: Download the Symbol and Footprint from the CAD.bxl file table.
Step 3: Open the .bxl file with the Ultra Librarian software.
You can always access the complete CAD/CAE Symbols database at https://webench.ti.com/cad/
Both PCB footprints and schematic symbols are available for download in a vendor neutral format, which can then be exported to the leading EDA CAD/CAE design tools using the Ultra Librarian Reader. The reader is available as a (free download.).
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Technical documentation
See the Important Notice and Disclaimer covering reference designs and other TI resources.
User guide (2)
| | PDF | 34 |
10 Dec 2014
|
| | PDF | 239 |
08 Oct 2014
|
Design files (3)
| | ZIP | 855 |
10 Dec 2014
|
| | PDF | 53 |
10 Dec 2014
|
| | PDF | 25 |
10 Dec 2014
|
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