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DAC5662IPFB

更新时间： 2024-11-28 21:54:03
品牌 Logo 应用领域
德州仪器 - TI 转换器
页数 文件大小 规格书
22页 289K
描述
DUAL, 12-BIT 200 MSPS DIGITAL-TO-ANALOG CONVERTER

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DAC5662  
www.ti.com  
SLAS425–JULY 2004  
DUAL, 12-BIT 200 MSPS DIGITAL-TO-ANALOG CONVERTER  
FEATURES  
APPLICATIONS  
•
Cellular Base Transceiver Station Transmit  
Channel  
•
•
•
•
•
•
•
•
•
•
•
•
12-Bit Dual Transmit DAC  
200 MSPS Update Rate  
– CDMA: W-CDMA, CDMA2000, IS-95  
– TDMA: GSM, IS-136, EDGE/UWC-136  
Medical/Test Instrumentation  
Arbitrary Waveform Generators (ARB)  
Direct Digital Synthesis (DDS)  
Cable Modem Termination System (CMTS)  
Single Supply: 3.0 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  
•
•
•
•
WRTB  
WRTA  
CLKB CLKA  
On-Chip 1.2-V Reference  
Low Power: 330 mW  
DE  
MUX  
Power-Down Mode: 15 mW  
Package: 48-Pin TQFP  
IOUTA1  
IOUTA2  
Latch A  
12−b DAC  
DA[11:0]  
BIASJ_A  
IOUTB1  
IOUTB2  
Latch B  
DB[11:0]  
12−b DAC  
MODE  
GSET  
BIASJ_B  
EXTIO  
1.2 V Reference  
SLEEP  
DVDD  
DGND  
AVDD  
AGND  
Figure 1.  
DESCRIPTION  
The DAC5662 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 200 MSPS, the DAC5662 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 DAC5662 has two 12-bit parallel input ports with separate clocks and data latches. For flexibility, the  
DAC5662 also supports multiplexed data for each DAC on one port when operating in the interleaved mode.  
The DAC5662 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.  
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 © 2004, 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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DAC5662IPFB 替代型号

型号 品牌 替代类型 描述 数据表
DAC5662IPFBR TI

完全替代

 DUAL, 12-BIT 200 MSPS DIGITAL-TO-ANALOG CONVERTER
DAC2902Y/250 TI

类似代替

 Dual, 12-Bit, 125MSPS DIGITAL-TO-ANALOG CONVERTER

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