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DAC14135 データシート

DAC14135 14-bit, 135MSPS D/A Converter National-Semiconductor
National ->Texas Instruments National-Semiconductor
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General Description
The DAC14135 is a monolithic 14-bit, 135MSPS digital-to-analog converter. The device has been optimized for use in cellular base stations and other applications where high resolution, high sampling rate, wide dynamic range, and compact size are required. The DAC14135 has many integrated features including a proprietary segmented DAC core, differential current outputs, a band-gap voltage reference, and TTL/CMOS compatible inputs. The converter features an 85dBc spurious free dynamic range (SFDR) at low frequencies and a 70dBc SFDR with 20MHz output signals. The 48-pin TSSOP package provides an extremely small footprint for applications where space is a critical consideration. The DAC14135 operates from a single +5V power supply. The digital power supply can also operate from +3.3V for lower power consumption and compatibility with +3.3V data inputs. The DAC14135 is fabricated in a 0.5µm CMOS process and is specified over the industrial temperature range of -40°C to +85°C. National Semiconductor thoroughly tests each part to verify full compliance with the guaranteed specifications.

• 135 MSPS
• Wide dynamic range
   SFDR @ 1MHz fout: 85dBc
   SFDR @ 5MHz fout: 79dBc
   SFDR @ 20MHz fout: 70dBc
• Differential Current Outputs
• Low power consumption: 185mW
• Very small package: 48-pin TSSOP
• TTL/CMOS (+3.3V or +5V) inputs

• Cellular Basestations:
   GSM, WCDMA, DAMPS, etc.
• Multi-carrier Basestations
• Multi-standard Basestations
• Direct digital synthesis (DDS)
• ADSL modems
• HFC modems

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