AD9776 Datasheet PDF

Part Number : AD9776

Function : Dual 12-/14-/16-Bit, 1 GSPS, Digital-to-Analog Converters

Manufacturers : Analog Devices

Pinouts :

AD9776 datasheet

Description :

The AD9776/AD9778/AD9779 are dual, 12-/14-/16-bit, high dynamic range, digital-to-analog converters (DACs) that provide a sample rate of 1 GSPS, permitting multicarrier generation up to the Nyquist frequency. They include features optimized for direct conversion transmit applications, including complex digital modulation, and gain and offset compensation. The DAC outputs are optimized to interface seamlessly with analog quad rature modulators such as the AD8349. A serial peripheral interface (SPI®) 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 100-lead TQFP packages.

Low power: 1.0 W @ 1 GSPS, 600 mW @ 500 MSPS,
full operating conditions
SFDR = 78 dBc to fOUT= 100 MHz
Single carrier WCDMA ACLR = 79 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 package

Wireless infrastructure
Digital high or low IF synthesis
Internal digital upconversion capability
Transmit diversity
Wideband communications: LMDS/MMDS, point-to-point

AD9776 Datasheet PDF Download

AD9776 pdf

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