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| 型號(hào)： | DAC1408D650HN |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | DAC |
| 英文描述： | Dual 14-bit DAC; up to 650 Msps; 2×, 4× or 8× interpolating |
| 中文描述： | 14-BIT DAC, PQCC64 |
| 封裝： | 9 X 9 MM, 0.85 MM HEIGHT, PLASTIC, VQFN-64 |
| 文件頁數(shù)： | 31/98頁 |
| 文件大?。?/td> | 2600K |
| 代理商： | DAC1408D650HN |
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DAC1408D650
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 4 — 26 November 2010
31 of 98
NXP Semiconductors
DAC1408D650
2
, 4
or 8
interpolating DAC with JESD204A
(register 0Ch; see
Table 30 “DAC_B_CFG_1 register (address 0Ch) bit description”
and
register 0Eh; see
Table 32 “DAC_B_CFG_3 register (address 0Eh) bit description”
) define
the range of variation of the digital offset (see
Table 15
).
Table 15.
Default settings are shown highlighted.
DAC_OFFSET[11:0]
Decimal
2048
2047
...
1
0
+1
...
+2046
+2047
10.11 Analog output
The DAC1408D650 has two output channels each of which produces two complementary
current outputs. These allow the even-order harmonics and noise to be reduced. The pins
are IOUTAP/IOUTAN and IOUTBP/IOUTBN respectively and need to be connected via a
load resistor R
L
to the 3.3 V analog power supply (V
DDA(3V3)
).
The equivalent analog output circuit of one DAC is shown in
Figure 18
. This circuit
consists of a parallel combination of NMOS current sources and their associated switches
for each segment.
The cascode source configuration increases the output impedance of the source, thus
improving the dynamic performance of the DAC by introducing less distortion.
The device can provide an output level (V
o(p-p)
) of up to 2 V, depending on the application,
the following stages and the targeted performances.
Digital offset adjustment
Offset applied
Two’s complement
1000 0000 0000
1000 0000 0001
...
1111 1111 1111
0000 0000 0000
0000 0000 0001
...
0111 1111 1110
0111 1111 1111
4096
4094
...
2
0
+2
...
+4092
+4094
Fig 18. Equivalent analog output circuit (one DAC)
001aah019
V
DDA(3V3)
AGND
IOUTAP/IOUTBP
IOUTAN/IOUTBN
RL
RL
AGND
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DAC1408D650HN/C1,5 | 功能描述:數(shù)模轉(zhuǎn)換器- DAC DL 14BIT DAC 650MSPS 2X 4X OR 8X INT 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 |
| DAC1408D650HN-C1 | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 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 |
| DAC1408D650HN-C18 | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 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 |
| DAC1408D650HW/C1 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Dual 14-bit DAC, up to 650 Msps, 2′ and 4′ interpolating with JESD204A interface |
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