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| 型號(hào)： | DAC1405D650HW |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類(lèi)： | DAC |
| 英文描述： | Dual 14-bit DAC, up to 650 Msps; 2x 4x and 8x interpolating |
| 中文描述： | PARALLEL, WORD INPUT LOADING, 0.02 us SETTLING TIME, 14-BIT DAC, PQFP100 |
| 封裝： | 14 X 14 MM, 1 MM HEIGHT, PLASTIC, MS-026, SOT638-1, HTQFP-100 |
| 文件頁(yè)數(shù)： | 33/45頁(yè) |
| 文件大?。?/td> | 1033K |
| 代理商： | DAC1405D650HW |
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DAC1405D650
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 3 — 10 September 2010
33 of 45
NXP Semiconductors
DAC1405D650
Dual 14-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 “1 V
o(p-p)
differential output with transformer”
). In addition, it
helps to match the impedance and provides electrical isolation.
The DAC1405D650 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 “2 V
o(p-p)
differential output with transformer”
).
10.14.2
DC interface to an Analog Quadrature Modulator (AQM)
When the system operation requires to keep the DC component of the spectrum, the
DAC1405D650 can use a DC interface to connect to an 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
i(cm)
common mode
input level.
Fig 13. 1 V
o(p-p)
differential output with transformer
Fig 14. 2 V
o(p-p)
differential output with transformer
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)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DAC1405D650HW | Dual 14-bit DAC, up to 650 Msps; 2x 4x and 8x interpolating |
| DAC1405D650 | |
| DAC1405D750HW | Dual 14-bit DAC, up to 750 Msps; 4× and 8× interpolating |
| DAC1405D750HW | Dual 14-bit DAC, up to 750 Msps; 4× and 8× interpolating |
| DAC1408D650HN | Dual 14-bit DAC; up to 650 Msps; 2×, 4× or 8× interpolating |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DAC1405D650HW/C1,5 | 功能描述:數(shù)模轉(zhuǎn)換器- DAC IC DAC 14BIT 650MSPD 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(lèi)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 |
| DAC1405D650HW-C1 | 制造商:Integrated Device Technology Inc 功能描述:HTQFP100 - Bulk |
| DAC1405D650HW-C18 | 制造商:Integrated Device Technology Inc 功能描述:HTQFP100 - Tape and Reel |
| DAC1405D750 | 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:Dual 14-bit DAC, up to 750 Msps; 4× and 8× interpolating |
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