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| 型號(hào)： | DAC1205D650HW |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | 外設(shè)及接口 |
| 英文描述： | Dual 12-bit DAC, up to 650 Msps; 2x 4x and 8x interpolating |
| 封裝： | DAC1205D650HW/C1<SOT638-1 (HTQFP100)|<<http://www.nxp.com/packages/SOT638-1.html<1<Always Pb-free,;DAC1205D650HW/C1<SOT638-1 (HTQFP100)|<<http://www.nxp.com/packages/SOT6 |
| 文件頁數(shù)： | 32/43頁 |
| 文件大?。?/td> | 295K |
| 代理商： | DAC1205D650HW |
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DAC1205D650
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 2 — 13 September 2010
32 of 43
NXP Semiconductors
DAC1205D650
Dual 12-bit DAC, up to 650 Msps; 2
×
4
×
and 8
×
interpolating
10.14 Output configuration
10.14.1
Basic output configuration
The use of a differentially-coupled transformer output provides optimum distortion
performance (see
Figure 13 “Differential output with transformer; V
o(dif)(p-p)
= 1 V”
). In
addition, it helps to match the impedance and provides electrical isolation.
The DAC1205D650 can operate up to 2 V
o(p-p)
differential outputs. In this configuration, it
is recommended to connect the center tap of the transformer to a 62
Ω
resistor connected
to the 3.3 V analog power supply, in order to adjust the DC common mode to
approximately 2.7 V (see
Figure 14 “Differential output with transformer; V
o(dif)(p-p)
= 2 V”
).
10.14.2
DC interface to an AQM
When the system operation requires to keep the DC component of the spectrum, the
DAC1205D650 can use a DC interface to connect to an Analog Quadrature
Modulator (AQM). In this case, the offset compensation for LO cancellation can be made
with the use of the digital offset control in the DAC.
Figure 15
provides an example of a connection to an AQM with a 1.7 V common mode
input level.
Fig 13. Differential output with transformer; V
o(dif)(p-p)
= 1 V
Fig 14. Differential output with transformer; V
o(dif)(p-p)
= 2 V
001aaj817
50
Ω
50
Ω
50
Ω
IOUTnP/IOUTnN; V
o(cm)
= 2.8 V; V
o(dif)(p-p)
= 1 V
IOUTnP
IOUTnN
0 mA to 20 mA
2:1
0 mA to 20 mA
V
DDA(3V3)
V
DDA(3V3)
001aaj818
50
Ω
100
Ω
100
Ω
IOUTnP/IOUTnN; V
o(cm)
= 2.7 V; V
o(dif)(p-p)
= 2 V
IOUTnP
IOUTnN
0 mA to 20 mA
4:1
0 mA to 20 mA
V
DDA(3V3)
62
Ω
V
DDA(3V3)
V
DDA(3V3)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DAC1205D650HW/C1 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Dual 12-bit DAC, up to 650 Msps; 2′ 4′ and 8′ interpolating |
| DAC1205D650HW/C1,5 | 功能描述:數(shù)模轉(zhuǎn)換器- DAC IC DAC 12BIT 650MSPS DL 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 |
| DAC1205D650HW-C1 | 功能描述:數(shù)模轉(zhuǎn)換器- DAC DAC RoHS:否 制造商:IDT 轉(zhuǎn)換器數(shù)量:2 DAC 輸出端數(shù)量:4 轉(zhuǎn)換速率:650 MSPs 分辨率:12 bit 接口類型:Serial, SPI 穩(wěn)定時(shí)間:20 ns 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-100 封裝: |
| DAC1205D650HW-C18 | 制造商:Integrated Device Technology Inc 功能描述:BST - Tape and Reel |
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