AD9122集成电路（IC）的数模转换器（DAC）规格书PDF中文资料

AD9122属于集成电路（IC）的数模转换器（DAC）。由亚德诺半导体技术有限公司制造生产的AD9122数模转换器（DAC）数模转换器（DAC、D/A、D2A 或 D 转 A）可将数字信号转换为缓冲或无缓冲的模拟电压或电流。DAC 架构是否适合特定应用，要取决于分辨率和采样频率。DAC 通常用于音乐播放器，将数字数据流转换为模拟音频流。它们还用于电视和手机，将数字视频数据转换为模拟视频信号，再连接到屏幕驱动器，以显示单色或彩色图像。

GENERAL DESCRIPTION

The AD9122 is a dual 16-bit, high dynamic range, digital-to analog converter (DAC) that provides a sample rate of 1200 MSPS, permitting a multicarrier generation up to the Nyquist frequency. It includes 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 quadrature modulators, such as the ADL537x F-MOD series from Analog Devices, Inc. A 4-wire serial port interface provides for programming/readback of many internal parameters. Full-scale output current can be programmed over a range of 8.7 mA to 31.7 mA. The AD9122 comes in a 72-lead LFCSP.

FEATURES

Flexible LVDS interface allows word, byte, or nibble load

Single-carrier W-CDMA ACLR = 82 dBc @ 122.88 MHz IF

Analog output: adjustable 8.7 mA to 31.7 mA, RL = 25 Ω to 50 Ω

Novel 2×/4×/8× interpolator/complex modulator allows carrier placement anywhere in the DAC bandwidth

Digital gain and phase adjustment for sideband suppression

Multiple chip synchronization interfaces

High performance, low noise PLL clock multiplier

Digital inverse sinc filter

Flexible LVDS interface allows word, byte, or nibble load

Low power: 1.5 W @ 1.2 GSPS, 800 mW @ 500 MSPS, full operating conditions

72-lead, exposed paddle LFCSP