AD9164

Data Sheet 16-Bit, 12 GSPS, RF DAC and Direct Digital Synthesizer AD9164 FEATURES DAC update rate up to 12 GSPS (minimum) Direct RF synthesis at 6 GSPS (minimum) DC to 2.5 GHz in baseband mode DC to 6 GHz in 2× nonreturn-to-zero (NRZ) mode 1.5 GHz to 7.5 GHz in Mix-Mode Bypassable interpolation 2×, 3×, 4×, 6×, 8×, 12×, 16×, 24× Excellent dynamic performance Fast frequency hopping APPLICATIONS Broadband communications systems DOCSIS 3.1 CMTS/ video on demand (VOD)/edge quadrature amplitude modulation (EQAM) Wireless communications infrastructure W-CDMA, LTE, LTE-A, point to point GENERAL DESCRIPTION The AD91641 is a high performance, 16-bit digital-to-analog converter (DAC) and direct digital synthesizer (DDS) that supports update rates to 6 GSPS. The DAC core is based on a quad-switch architecture coupled with a 2× interpolator filter that enables an effective DAC update rate of up to 12 GSPS in some modes. The high dynamic range and bandwidth makes these DACs ideally suited for the most demanding high speed radio frequency (RF) DAC applications. The DDS consists of a bank of 32, 32-bit numerically controlled oscillators (NCOs), each with its own phase accumulator. When combined with a 100 MHz serial peripheral interface (SPI) and fast hop modes, phase coherent fast frequency hopping (FFH) is enabled, with several modes to support multiple applications. In baseband mode, wide analog bandwidth capability combines with high dynamic range to support DOCSIS 3.1 cable infrastru...