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Updated at 17/06/2025 10:30:15(UTC+8)
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Description
- Product Details
- The AD9737A/AD9739A are 11-bit and 14-bit, 2.5 GSPS high performance RF DACs that are capable of synthesizing wideband signals from dc up to 3 GHz. The AD9737A/AD9739A are pin and functionally compatible with the AD9739 with the exception that the AD9737A/AD9739A do not support synchronization or RZ mode, and are specified to operate between 1.6 GSPS and 2.5 GSPS.
- By elimination of the synchronization circuitry, some nonideal artifacts such as images and discrete clock spurs remain stationary on the AD9737A/AD9739A between power-up cycles, thus allowing for possible system calibration. AC linearity and noise performance remain the same between the AD9739 and the AD9737A/AD9739A.
- The inclusion of on-chip controllers simplifies system integration. A dual-port, source synchronous, LVDS interface simplifies the digital interface with existing FGPA/ASIC technology. On-chip controllers are used to manage external and internal clock domain variations over temperature to ensure reliable data transfer from the host to the DAC core. A serial peripheral interface (SPI) is used for device configuration as well as readback of status registers.
- The AD9737A/AD9739A are manufactured on a 0.18 µm CMOS process and operate from 1.8 V and 3.3 V supplies. They are supplied in a 160-ball chip scale ball grid array for reduced package parasitics.
- **Product Highlights**
- 1. Ability to synthesize high quality wideband signals with bandwidths of up to 1.25 GHz in the first or second Nyquist zone.
- 2. A proprietary quad-switch DAC architecture provides exceptional ac linearity performance while enabling mixmode operation.
- 3. A dual-port, double data rate, LVDS interface supports the maximum conversion rate of 2500 MSPS.
- 4. On-chip controllers manage external and internal clock domain skews.
- 5. Programmable differential current output with an 8.66 mA to 31.66 mA range.
- **Applications**
- Broadband communications systems
- DOCSIS CMTS systems
- Military jammers
- Instrumentation, automatic test equipment
- Radar, avionics
- ### Features and Benefits
- Direct RF synthesis at 2.5 GSPS update rate
- DC to 1.25 GHz in baseband mode
- 1.25 GHz to 3.0 GHz in mix-mode
- Industry leading single/multicarrier IF or RF synthesis
- Dual-port LVDS data interface
- Up to 1.25 GSPS operation
- Source synchronous DDR clocking
- Pin compatible with the AD9739
- Programmable output current: 8.7 mA to 31.7 mA
- Low power: 1.1 W at 2.5 GSPS
AD9739A Specifications
| Attribute | Attribute Value |
|---|---|
| Datasheet | Datasheet |
| 3D Model | 3D Model |
| Show | |
| Product Lifecycle Status | Recommended for New Designs |
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- The terms here are for reference only, the actual terms are subject to the sales quotation. - Please confirm product specifications when ordering. - MOQ refers to the minimum order quantity required to purchase each part. - If you have special ordering instructions, please indicate them on the ordering page. - Inspection (PSI) will be performed prior to shipment.
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