參數(shù)資料
型號(hào)： DAC5674IPHPR
廠商： Texas Instruments
文件頁(yè)數(shù)： 8/39頁(yè)
文件大?。?/td> 0K
描述： IC DAC 14BIT 400MSPS 48-HTQFP
產(chǎn)品培訓(xùn)模塊： Data Converter Basics
標(biāo)準(zhǔn)包裝： 1,000
系列： CommsDAC™
設(shè)置時(shí)間： 20ns
位數(shù)： 14
數(shù)據(jù)接口： 并聯(lián)
轉(zhuǎn)換器數(shù)目： 1
電壓電源： 模擬和數(shù)字
功率耗散（最大）： 550mW
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 48-TQFP 裸露焊盤
供應(yīng)商設(shè)備封裝： 48-HTQFP（7x7）
包裝： 帶卷 (TR)
輸出數(shù)目和類型： 2 電流，單極
采樣率（每秒）： 400M
配用： 296-30860-ND - EVAL MODULE FOR DAC5674
DAC5674
SLWS148A SEPTEMBER 2003 REVISED OCTOBER 2005
www.ti.com
16
Low-Pass/High-Pass 4
y Interpolation Filter Operation
By configuring the low-pass filters as high-pass filters, the user can select one of the images present at multiples
of the clock. Figure 17 shows the low-pass/high-pass filter response. After digital filtering, the DAC transmits
at 2Fdata IF and 2Fdata + IF. This configuration is equivalent to sub-sampling receiver systems where a
high-speed analog-to-digital converter samples high IF frequencies with relatively low sample rates, resulting
in low (output) data rates.
The placement of the IF in the first Nyquist zone combined with the DAC5674 input data determines the final
output signal frequency. For Fdata = 100 MSPS and a fundamental IF of 0.4 × Fdata = 40 MHz, this would translate
into images located at 160 MHz and 240 MHz. Note that this is the equivalent of mixing a 40-MHz analog IF
signal with a 200-MHz sine wave. By doing this, the first mixer in the total transmission chain is eliminated.
Input Spectrum
Output of DUC
1st 2x
interpolation
filter
Spectrum after
2x interpolation
2nd 2x
interpolation
filter
Spectrum after
4x interpolation
Fdata
=
Fdac
80 dB of
Attenuation
HPF filters out
unwanted
image
HPF filters out
unwanted
image
Figure 17. Low-Pass/High-Pass 4
y Interpolation Filter Operation
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參數(shù)描述
DAC5674IPHPRG4 功能描述:數(shù)模轉(zhuǎn)換器- DAC 14-Bit 400 CommsDAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube
DAC5675 制造商:TI 制造商全稱:Texas Instruments 功能描述:14-BIT, 400-MSPS DIGITAL-TO-ANALOG CONVERTER
DAC5675A 制造商:TI 制造商全稱:Texas Instruments 功能描述:14-Bit, 400MSPS Digital-to-Analog Converter
DAC5675AEVM 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開(kāi)發(fā)工具 DAC5675A Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評(píng)估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V
DAC5675AIPHP 功能描述:數(shù)模轉(zhuǎn)換器- DAC 14-Bit 400-MSPS RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube
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