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DAC5662A

更新时间： 2024-11-28 12:21:31
品牌 Logo 应用领域
德州仪器 - TI 转换器
页数 文件大小 规格书
26页 655K
描述
DUAL, 12-BIT 275 MSPS DIGITAL-TO-ANALOG CONVERTER

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DAC5662A 数据手册

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DAC5662A  
www.ti.com  
SLAS536B –SEPTEMBER 2007–REVISED DECEMBER 2010  
DUAL, 12-BIT 275 MSPS DIGITAL-TO-ANALOG CONVERTER  
Check for Samples: DAC5662A  
1
FEATURES  
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Package: 48-Pin TQFP  
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12-Bit Dual Transmit DAC  
APPLICATIONS  
275 MSPS Update Rate  
•
Cellular Base Transceiver Station Transmit  
Channel  
Single Supply: 3 V - 3.6 V  
High SFDR: 85 dBc at 5 MHz  
High IMD3: 78 dBc at 15.1 and 16.1 MHz  
WCDMA ACLR: 70 dB at 30.72 MHz  
Independent or Single Resistor Gain Control  
Dual or Interleaved Data  
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CDMA: W-CDMA, CDMA2000, IS-95  
TDMA: GSM, IS-136, EDGE/UWC-136  
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Medical/Test Instrumentation  
Arbitrary Waveform Generators (ARB)  
Direct Digital Synthesis (DDS)  
Cable Modem Termination System (CMTS)  
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On-Chip 1.2-V Reference  
Low Power: 330 mW  
Power-Down Mode: 15 mW  
DESCRIPTION  
The DAC5662A is a monolithic, dual-channel 12-bit high-speed digital-to-analog converter (DAC) with on-chip  
voltage reference.  
Operating with update rates of up to 275 MSPS, the DAC5662A offers exceptional dynamic performance and  
tight-gain and offset matching, characteristics that make it suitable in either I/Q baseband or direct IF  
communication applications.  
Each DAC has a high-impedance differential current output, suitable for single-ended or differential analog-output  
configurations. External resistors allow scaling the full-scale output current for each DAC separately or together,  
typically between 2 mA and 20 mA. An accurate on-chip voltage reference is temperature compensated and  
delivers a stable 1.2-V reference voltage. Optionally, an external reference may be used.  
The DAC5662A has two 12-bit parallel input ports with separate clocks and data latches. For flexibility, the  
DAC5662A also supports multiplexed data for each DAC on one port when operating in the interleaved mode.  
The DAC5662A has been specifically designed for a differential transformer coupled output with a 50-Ω doubly  
terminated load. For a 20-mA full-scale output current a 4:1 impedance ratio (resulting in an output power of  
4 dBm) and 1:1 impedance ratio transformer (-2 dBm output power) are supported.  
The DAC5662A is available in a 48-pin thin quad FlatPack (TQFP). Pin compatibility between family members  
provides 12-bit (DAC5662A) and 14-bit (DAC5672) resolution. Furthermore, the DAC5662A is pin compatible to  
the DAC2902 and AD9765 dual DACs. The device is characterized for operation over the industrial temperature  
range of -40°C to 85°C.  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2007–2010, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
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DAC5662A 替代型号

型号 品牌 替代类型 描述 数据表
DAC5672 TI

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DAC5662 TI

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