AD9779A - ADI

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

Part No

AD9779A
Manufacturer

ADI
ChipWorker Part#

CW353144740
RoHS

Lead free / RoHS Compliant
Description

Dual 16Bit, 1GSPS, Digital-to-Analog Converter
Documentation

Datasheet

AD9779A Global Supplier

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AD9779A Specifications

Attribute	Attribute Value

Part Number	AD9779A
Manufacturer	ADI
ChipWorker Part#	CW353144740
Documentation	Datasheet
	expand all
Product Lifecycle Status	Active
RoHS	RoHS Compliant

Product Description

Product Details
The AD9776A/AD9778A/AD9779A are dual, 12-/14-/16-bit, high dynamic range digital-to-analog converters (DACs) that provide a sample rate of 1 GSPS, permitting a multicarrier generation up to the Nyquist frequency. They include features optimized for direct conversion transmission applications, including complex digital modulation and gain and offset compensation. The DAC outputs are optimized to interface seamlessly with analog quadrature modulators such as the ADL537x FMOD series from Analog Devices, Inc. A 3-wire interface provides for programming/readback of many internal parameters. Full-scale output current can be programmed over a range of 10 mA to 30 mA. The devices are manufactured on an advanced 0.18 μm CMOS process and operate on 1.8 V and 3.3 V supplies for a total power consumption of 1.0 W. They are enclosed in a 100-lead thin quad flat package (TQFP).
**Product Highlights**
1. Ultralow noise and intermodulation distortion (IMD) enable high quality synthesis of wideband signals from baseband to high intermediate frequencies.
2. A proprietary DAC output switching technique enhances dynamic performance.
3. The current outputs are easily configured for various single-ended or differential circuit topologies.
4. CMOS data input interface with adjustable setup and hold.
5. Novel 2×, 4×, and 8× interpolator/coarse complex modulator allows carrier placement anywhere in DAC bandwidth.
**Applications**
Wireless infrastructure W-CDMA, CDMA2000, TD-SCDMA, WiMax, GSM, LTE
Digital high or low IF synthesis
Internal digital upconversion capability
Transmit diversity
Wideband communications: LMDS/MMDS, point-to-point
### Features and Benefits
Low power: 1.0 W @ 1 GSPS, 600 mW @ 500 MSPS, full operating conditions
Single carrier W-CDMA ACLR = 80 dBc @ 80 MHz IF
Analog output: adjustable 8.7 mA to 31.7 mA, RL = 25 Ω to 50 Ω
Novel 2×, 4×, and 8× interpolator/coarse complex modulator allows carrier placement anywhere in DAC bandwidth
Auxiliary DACs allow control of external VGA and offset control
Multiple chip synchronization interface
High performance, low noise PLL clock multiplier
Digital inverse sinc filter
100-lead, exposed paddle TQFP

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- Please check the technical specifications of the products when ordering.
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- Carefully tested and packaged by ChipWorker
- Vacuum packed
- Anti-static packaging
- Anti-vibration foam
- Income quality control (IQC), 800+ qualified distributors.
- Authorities test the chip to ensure the quality, authenticity and safety of your device.
- Decapsulation control
- X-ray inspection
- XRF inspection
- Electrical testing
- Surface testing

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