AD9776A/AD9778A/AD9779A is a dual-channel, 12-/14-/16-bit, wide dynamic range digital-to-analog converter (DAC) that provides a 1 GSPS sample rate and allows multi-carrier generation up to Nyquist frequencies. These digital-to-analog converters have been optimized for direct conversion transmission applications, including law sum (delete) digital multimodulation, gain and offset compensation. The digital-to-analog converter outputs have been optimized to interface seamlessly with analog quadrature modulators such as Analog Devices' ADL537x FMOD series. Serial peripheral interfaces (SPIs) provide programmable/readback for many internal parameters. The full-frame output current can be set in the range of 10 mA ~ 30 mA. These analog-to-digital converters are fabricated using an advanced 0.18μm CMOS process with an operating voltage range of 1.8 V ~ 3.3 V and a total power consumption of 1.0 W. They are available in a 100-pin low-profile, flat-four-sided package (TQFP)
Product features:
- 超低噪声与互调失真(IMD)，实现从基带到高中频的宽带信号高质量合成
- 拥有自主知识产权的数字模数转换器输出转换技术提供了动态性能
- 可以容易地为各种单端或差分电流拓扑结构提供电流输出配置
- CMOS数据输入接口，具有可调设置与保持
- 新颖的2×, 4×, 与8×分类机/粗调综合调节器，允许在数模转换器的任意带宽进行载波布局
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- 无线基础设施
- WCDMA, CDMA2000, TD-SCDMA, WiMax, GSM
- 数字高中频或低中频合成
- 内部数字上转换能力
- 发射分集
- 宽带通信：LMDS/MMDS、点对点
- 数据表, Rev. PrB, 5/07