AD9739A - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

AD9739A
Manufacturer

ADI
ChipWorker Part#

CW983486053
Description

14Bit, 2.5GSPS, RF D/A Converter
Documentation

Datasheet

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AD9739A Specifications

Attribute	Attribute Value

Part Number	AD9739A
Manufacturer	ADI
ChipWorker Part#	CW983486053
Documentation	Datasheet
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Product Lifecycle Status	Recommended for New Designs

Product 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

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