12GS/s 14-bit DAC delivers "Right-Sized" Solution for Cable Modem and Radio Infrastructure Applications
Langen, Germany, February 7, 2012 - Fujitsu Semiconductor Europe (FSEU) today announces its first 3rd generation high performance Digital to Analog Converter Application Specific Standard Product (ASSP). The MB86066 "Anakin" DAC combines 14-bit resolution with a market-defining conversion rate of up to 12GS/s. The new product will deliver benefits to, amongst other applications, broadband communications systems, multi-band radio communications systems and test and measurement equipment.
Infrastructure evolution
Building on Fujitsu's market-leading position for 1 and 1.3GS/s DACs, which enable superior high Direct-IF architectures, the leap in conversion rate to 12GS/s makes Direct-RF a reality. Such performance is key to enabling true single-platform designs, capable of multi-band as well as multi-mode air interface agnostic signal synthesis. Furthermore, its un-rivaled wide-band performance, comfortably encompassing 50-1,000MHz, meets the needs of all downstream cable modem infrastructure applications. For communications systems infrastructure, this development represents the next step in radio integration, pushing the digital interface closer to the antenna. At the same time it potentially enables simultaneous band and carrier combinations in order to lower system power and cost-per-megabyte transmitted. These capabilities are essential for addressing the insatiable demand for mobile data.
"Right-Sized" Solutions
The device integrates two cascaded x2 interpolation filters, reducing the input data required to 3GS/s for full-rate operation. Input data is shared across two parallel LVDS buses, each operating at up to 1.5GS/s, 750MHz DDR. Two further LVDS buses are available to support very-wide band applications, requiring 6GS/s input data. Both interpolation filters can be configured for either low, high or all-pass operation, providing multiple operating and power reduced modes. 15-bit interfaces are implemented to support continuous, per-sample parity checking with automatic error counting.
The device is housed in an 324-ball plastic flip-chip BGA package, measuring 15 x 15mm. Power consumption is only 2.2W when operating at 12GS/s, with both filters enabled, reducing to as low as 950mW at 5.3GS/s for cable modem applications.
For customer specific applications, the DAC core IP, codenamed "Jacen", can be licensed for ASIC solutions, implemented using CS200L, Fujitsu"s high performance 65nm CMOS technology. This enables the integration of customers" own digital pre-processing, as well as the adoption of any specific data interface requirements.
Getting started and availability
To simplify initial device evaluation as well as to enable in-system diagnostics, a Fujitsu proprietary Waveform Memory Module (WMM) is integrated on-chip. The WMM is capable of storing test-vectors of up to 256k samples in length. Full device configuration and control is achieved via a 4-wire serial interface. Development samples are currently undergoing characterisation and qualification testing, with production-ready devices scheduled for Q4 2012.
About Fujitsu Semiconductor Europe (FSEU)
Fujitsu Semiconductor Europe (FSEU) is a major supplier of "right-sized" advanced semiconductor solutions, serving the automotive, industrial, communications and home entertainment markets. FSEU"s overall strategy is firmly driven by its customers" demands, with the aim of becoming an integral value-added link in the complete supply chain. Sales teams are based in regional offices in Langen near Frankfurt, Munich, Maidenhead near London, Paris, Milan, Budapest and Istanbul, providing local technical sales and applications support. Engineers from Fujitsu"s European-based design centres and research and development facilities, dedicated to analogue and mixed-signal technology, advanced packaging, microcontrollers, graphics controllers, multimedia ICs, ASICs and embedded software, work closely with marketing and sales teams to satisfy customers" systems development requirements.
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