參數(shù)資料
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(yè)數(shù)： 13/43頁(yè)
文件大小： 295K
代理商： DAC1205D650HW
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
13 of 43
NXP Semiconductors
DAC1205D650
Dual 12-bit DAC, up to 650 Msps; 2
×
4
×
and 8
×
interpolating
10. Application information
10.1 General description
The DAC1205D650 is a dual 12-bit DAC operating at up to 650 Msps. Each DAC consists
of a segmented architecture, comprising a 6-bit thermometer sub-DAC and an 6-bit binary
weighted sub-DAC.
With an input data rate of up to 160 MHz, and a maximum output sampling rate of
650 Msps, the DAC1205D650 allows more flexibility for wide bandwidth and multi-carrier
systems. Combined with its quadrature modulator and its 32-bit NCO, the DAC1205D650
simplifies the frequency selection of the system. This is also possible because of the 2
×
,
4
×
and 8
×
interpolation filters that remove undesired images.
Two modes are available for the digital input. In the Dual-port mode, each DAC uses its
own data input line. In Interleaved mode, both DACs use the same data input line.
Each DAC generates two complementary current outputs on pins IOUTAP/IOUTAN and
IOUTBP/IOUTBN. This provides a full-scale output current (I
O(fs)
) up to 20 mA. An internal
reference is available for the reference current which is externally adjustable using pin
VIRES.
There are embedded features which provide analog offset correction (internal auxiliary
DACs), digital offset control and gain adjustment. All the functions can be set using a SPI.
The DAC1205D650 operates at both 3.3 V and 1.8 V using separate digital and analog
power supplies. The digital input is 3.3 V compliant and the clock input is LVDS compliant.
10.2 Serial interface (SPI)
10.2.1
Protocol description
The DAC1205D650 serial interface is a synchronous serial communication port allowing
easy interfacing with many industry microprocessors. It provides access to the registers
that define the operating modes of the chip in both write and read modes.
This interface can be configured as a 3-wire type (SDIO as bidirectional pin) or a 4-wire
type (SDIO and SDO as unidirectional pin, input and output port respectively). In both
configurations, SCLK acts as the serial clock, and SCS_N acts as the serial chip select
bar.
Each read/write operation is sequenced by the SCS_N signal and enabled by a LOW
assertion to drive the chip with between 2 to 5 bytes, depending on the content of the
instruction byte (see
Table 7
).
相關(guān)PDF資料
PDF描述
DAC1205D650HW Dual 12-bit DAC, up to 650 Msps; 2x 4x and 8x interpolating
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DAC1401D125HL Dual 14-bit DAC, up to 125 Msps
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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