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| 型號： | 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)： | 27/43頁 |
| 文件大小： | 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
27 of 43
NXP Semiconductors
DAC1205D650
Dual 12-bit DAC, up to 650 Msps; 2
×
4
×
and 8
×
interpolating
Table 34.
First interpolation filter
[1]
Lower
H(1)
H(2)
H(3)
H(4)
H(5)
[1]
H(n) is the digital filter coefficient.
10.9 DAC transfer function
The full-scale output current for each DAC is the sum of the two complementary current
outputs:
(3)
The output current depends on the digital input data:
(4)
(5)
The setting applied to CODING (register 00h[2]; see
Table 9 “Register allocation map”
)
defines whether the DAC1205D650 operates with a binary input or a two’s complement
input.
Table 35 “DAC transfer function”
shows the output current as a function of the input data,
when I
O(fs)
= 20 mA.
Table 35.
Data
(Decimal)
10.10 Full-scale current
10.10.1
Regulation
The DAC1205D650 reference circuitry integrates an internal bandgap reference voltage
which delivers a 1.25 V reference to the GAPOUT pin. It is recommended to decouple pin
GAPOUT using a 100 nF capacitor.
Inversion filter coefficients
Upper
H(9)
H(8)
H(7)
H(6)
-
Value
2
4
10
35
401
DAC transfer function
I11/Q11 to I0/Q0
Binary
0000 0000 0000
...
1000 0000 0000
...
1111 1111 1111
IOUTP
IOUTN
Two’s complement
1000 0000 0000
...
0000 0000 0000
...
0111 1111 1111
0
...
2048
...
4095
0 mA
...
10 mA
...
20 mA
20 mA
...
10 mA
...
0 mA
I
O fs
I
IOUTP
I
IOUTN
+
=
I
IOUTP
I
O fs
4095
---------------
×
=
I
IOUTN
I
O fs
---------------------------------
4095
×
=
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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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