DAC5670

更新时间： 2024-09-13 06:52:15

品牌	Logo	应用领域
德州仪器 - TI		转换器
页数	文件大小	规格书
29页	942K
描述
14-BIT 2.4-GSPS DIGITAL-TO-ANALOG CONVERTER

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DAC5670 数据手册

DAC5670

www.ti.com

SGLS394 –MARCH 2010

14-BIT 2.4-GSPS DIGITAL-TO-ANALOG CONVERTER

Check for Samples: DAC5670

FEATURES

•

Differential Scalable Current Outputs:

5 mA to 30 mA

•

14-Bit Resolution

•

On-Chip 1.2-V Reference

3.3-V Analog Supply Operation

Power Dissipation: 2 W

252-Ball GDJ Package

•

2.4-GSPS Maximum Update Rate Digital to

Analog Converter

•

Dual Differential Input Ports

–

Even/Odd Demultiplexed Data

Maximum 1.2 GSPS Each Port, 2.4 GSPS

Total

APPLICATIONS

•

Cable Modem Termination System Direct

Synthesis

Cellular Base Transceiver Station Transmit

Channels

–

Dual 14-Bit Inputs + 1 Reference Bit

DDR Output Clock

•

DLL Optimized Clock Timing Synchronized

to Reference Bit

–

CDMA: W-CDMA, CDMA2000, TD-SCDMA

800 to 900-MHz Direct Synthesis

–

LVDS and HyperTransport™ Voltage Level

Compatible

•

Point-to-Point Microwave

Radar

Satellite Communications

Internal 100-Ω Terminations for Data and

Reference Bit Inputs

•

Selectable 2 Times Interpolation With Fs/2

Mixing

DESCRIPTION

The DAC5670 is a 14-bit 2.4-GSPS digital-to-analog converter (DAC) with dual demultiplexed differential input

ports. The DAC5670 is clocked at the DAC sample rate and the two input ports run at a maximum of 1.2 GSPS.

An additional reference bit input sequence is used to adjust the output clock delay to the data source, optimizing

the internal data latching clock relative to this reference bit with a delay lock loop (DLL).

The DAC5670 also can accept data up to 1.2 GSPS on one input port the same clock configuration. In the single

port mode, repeating the input sample (A_ONLY mode), 2 times interpolation by zero stuff (A_ONLY_ZS mode),

or 2 times interpolation by repeating and inverting the input sample (A_ONLY_INV) are used to double the input

sample rate up to 2.4 GSPS.

The DAC5670 operates with a single 3-V to 3.6-V supply voltage. Power dissipation is 2 W at maximum

operating conditions. The DAC5670 provides a nominal full-scale differential current-output of 20 mA, supporting

both single-ended and differential applications. An on-chip 1.2-V temperature-compensated bandgap reference

and control amplifier allows the user to adjust the full-scale output current from the nominal 20 mA to as low as 5

mA or as high as 30 mA. The output current can be directly fed to the load with no additional external output

buffer required. The device has been specifically designed for a differential transformer coupled output with a

50-Ω doubly-terminated load.

The DAC5670 is available in a 252-ball GDKJ package. The device is characterized for operation over the

temperature range –40°C to 85°C .

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.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...29

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与DAC5670相关器件

型号	品牌	获取价格	描述	数据表
DAC5670I	TI	获取价格	14-BIT 2.4-GSPS DIGITAL-TO-ANALOG CONVERTER
DAC5670IGDJ	TI	获取价格	14-BIT 2.4-GSPS DIGITAL-TO-ANALOG CONVERTER
DAC5670MGEM/EM	TI	获取价格	DAC5670-SP 14-Bit 2.4-GSPS Digital-to-Analog Converter (DAC)
DAC5670-SP	TI	获取价格	14-BIT 2.4-GSPS DIGITAL-TO-ANALOG CONVERTER
DAC5670-SP_15	TI	获取价格	DAC5670-SP 14-Bit 2.4-GSPS Digital-to-Analog Converter (DAC)
DAC5672	TI	获取价格	DUAL, 14-BIT 200 MSPS DIGITAL - TO - ANALOG CONVERTER
DAC5672A	TI	获取价格	DUAL,14-BIT 275 MSPS DIGITAL-TO-ANALOG CONVERTER
DAC5672AIPFB	TI	获取价格	DUAL,14-BIT 275 MSPS DIGITAL-TO-ANALOG CONVERTER
DAC5672AIPFBG4	TI	获取价格	DUAL,14-BIT 275 MSPS DIGITAL-TO-ANALOG CONVERTER
DAC5672AIPFBR	TI	获取价格	DUAL,14-BIT 275 MSPS DIGITAL-TO-ANALOG CONVERTER

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