TIDA-00077
適用於 DAC348x 和調變器的類比介面網路
TIDA-00077
概覽
The analog interface circuits in this reference design are often used between current-source based digital-to analog converters (DAC) and quadrature modulators. While the DAC348x is used as an example of a TI high-speed DAC, the circuits can be applied to other current-source based converters with slight modifications. The DAC348x and TRF3705 analog interface are populated by default on the TSW308xEVMs. Both the DAC348x and TRF3705 are designed with the same DC bias and AC swing specification to provide a seamless interface. Other circuit topologies are described to account for other DC bias and AC swing specifications. By accounting the correct DC bias and proper AC swing, system designers can apply these circuits based on their application needs in order to achieve optimal performance.
特點
- A breakdown of the interface on the TSW308x is explained to show the direct connection between the DAC3484 and TRF3705
- General Design equations of current source DACs with IQ modulators are provided and explained
- TINA spice models are provided for different interface networks for DC, AC, and filtered interfaces to meet customer needs
已開發完全組裝的電路板，僅供測試與性能驗證，且為非賣品。
設計檔案與產品
設計檔案
下載立即可用的系統檔案以加速您的設計流程。
產品
設計與潛在替代方案中包括 TI 產品。
技術文件
| 類型 | 標題 | 下載最新的英文版本 | 日期 | |||
|---|---|---|---|---|---|---|
| * | 設計指南 | Analog Interfacing Networks for DAC348x and Modulators (TIDA-00077) (Rev. A) | 2013/8/14 |