GENERAL DESCRIPTION

The AD9148 is a quad, 16-bit, high dynamic range, digital-toanalog converter (DAC) that provides a sample rate of 1000 MSPS. This device includes features optimized for direct conversion transmit applications, including gain, phase, and offset compensation. The DAC outputs are optimized to interface seamlessly with analog quadrature modulators such as the ADL5371/ADL5372/ADL5373/ADL5374/ADL5375.

FEATURES

Single-carrier W-CDMA ACLR = 80 dBc at 150 MHz IF

Channel-to-channel isolation > 90 dB

Analog output

Adjustable 8.7 mA to 31.7 mA

RL = 25 Ω to 50 Ω

Novel 2×, 4×, and 8× interpolator eases data interface

On-chip fine complex NCO allows carrier placement anywhere in DAC bandwidth

High performance, low noise PLL clock multiplier

Multiple chip synchronization interface

Programmable digital inverse sinc filter

Auxiliary DACs allow for offset control

Gain DACs allow for I and Q gain matching

Programmable I and Q phase compensation

Digital gain control

Flexible LVDS digital I/F supports 32- or 16-bit bus width

196-ball CSP_BGA, 12 mm × 12 mm

APPLICATIONS

Wireless infrastructure

LTE, TD-SCDMA, WiMAX, W-CDMA, CDMA2000, GSM

MIMO/transmit diversity

Digital high or low IF synthesis

AD9148BBPZ属于集成电路（IC） > 数模转换器（DAC）。亚德诺半导体技术有限公司制造生产的AD9148BBPZ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。