Overview
The AD9739ABBCZ, produced by Analog Devices Inc., is a high-performance 14-bit, 2.5 GSPS RF digital-to-analog converter (DAC). This device is capable of synthesizing wideband signals from DC up to 3.0 GHz, making it ideal for various high-frequency applications. The AD9739 features a proprietary quad-switch DAC architecture, which provides exceptional AC linearity performance and enables direct RF synthesis in baseband and mix modes. The device is designed to simplify system integration with on-chip controllers managing external and internal clock domain variations and a dual-port, source synchronous LVDS interface compatible with existing FPGA/ASIC technology.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| DAC Clock Rate | 800 | - | 2500 | MSPS |
| Output Settling Time (tst) to 0.1% | - | - | 13 | ns |
| Spurious-Free Dynamic Range (SFDR) at fOUT = 100 MHz | - | - | 69.5 | dBc |
| Output Current Range | 8.66 | - | 31.66 | mA |
| Supply Voltages | 1.8 V, 3.3 V | - | - | V |
| Package Type | - | - | 160-ball CSPBGA | - |
Key Features
- Direct RF synthesis at 2.5 GSPS update rate, supporting DC to 1.25 GHz in baseband mode and 1.25 GHz to 3.0 GHz in mix mode.
- Proprietary quad-switch DAC architecture for exceptional AC linearity performance.
- Dual-port, double data rate, LVDS interface supporting up to 2500 MSPS conversion rate.
- On-chip controllers to manage external and internal clock domain variations over temperature.
- Programmable differential current output with a range of 8.66 mA to 31.66 mA.
- Multichip synchronization capability using an on-chip synchronization controller.
- Serial peripheral interface (SPI) for device configuration and status register readback.
Applications
- Broadband communications systems.
- Military jammers.
- Instrumentation and automatic test equipment.
- Radar and avionics systems.
Q & A
- What is the maximum DAC clock rate of the AD9739ABBCZ?
The maximum DAC clock rate is 2500 MSPS.
- What is the output current range of the AD9739ABBCZ?
The output current can be programmed over the range of 8.66 mA to 31.66 mA.
- What type of interface does the AD9739ABBCZ use for data transfer?
The device uses a dual-port, source synchronous, LVDS interface.
- What is the maximum frequency range for signal synthesis in baseband mode?
The device can synthesize signals from DC up to 1.25 GHz in baseband mode.
- How does the AD9739ABBCZ manage clock domain variations?
The device uses on-chip controllers to manage external and internal clock domain variations over temperature.
- What is the package type of the AD9739ABBCZ?
The device is supplied in a 160-ball chip scale ball grid array (CSPBGA).
- What are the supply voltages for the AD9739ABBCZ?
The device operates from 1.8 V and 3.3 V supplies.
- Does the AD9739ABBCZ support multichip synchronization?
Yes, the device supports multichip synchronization using an on-chip synchronization controller.
- What interface is used for device configuration and status register readback?
A serial peripheral interface (SPI) is used for device configuration and status register readback.
- What are some of the key applications of the AD9739ABBCZ?
The device is used in broadband communications systems, military jammers, instrumentation, automatic test equipment, radar, and avionics.
