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參數(shù)資料
| 型號(hào)： | AD9959 |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | XO, clock |
| 英文描述： | 4 Channel 500MSPS DDS with 10-bit DACs |
| 中文描述： | DDS的4通道500MSPS的10位DAC |
| 文件頁(yè)數(shù)： | 6/9頁(yè) |
| 文件大?。?/td> | 225K |
| 代理商： | AD9959 |
AD9959
Preliminary Technical Data
PRODUCT OVERVIEW
Rev. PrB | Page 6 of 9
The AD9959 consists of four independently programmable
DDS channels. The AD9959 features independent frequency,
phase, and amplitude control of each channel; this allows for the
correction of imbalances due to analog processing such as
filtering, amplification, or PCB layout related mismatches. The
AD9959 supports frequency sweeping for radar and
instrumentation applications. Since all four channels share a
common system clock, they are inherently synchronized. If
more than four channels are required, synchronizing multiple
AD9959s is a simple task.
The AD9959 uses advanced DDS technology which provides
low power dissipation with high performance. The device
incorporates four integrated high speed 10-bit DACs with
excellent wideband and narrowband SFDR. Each DDS has a 32-
bit frequency tuning word, 14-bits of phase offset, and a 10-bit
output scale multiplier.
Each DAC has it own programmable reference to enable a
different full scale current for each channel.
Each DDS acts as a high resolution frequency divider with the REF_
CLK as the input and the DAC providing the output. The REF_CLK
input source is common to all DDS channels, and can be driven
directly, or used in combination with an integrated REF_CLK
multiplier (using a PLL) up to a maximum of 500 MSPS. The REF_
CLK multiplication factor is programmable from 4 to 20, in integer
steps. The REF_CLK input features an oscillator which supports either
a crystal as a source, or may be bypassed. The crystal frequency must
be between 20MHz and 30MHz. The crystal can be used with or
without the REF_CLK multiplier.
The DAC outputs are supply referenced and must be terminated into
AVDD by a resistor, or an AVDD center-tapped transformer.
The AD9959 comes in a space-saving 56-lead LFCSP package. The
DDS core (AVDD and DVDD pins) must be powered by a 1.8V supply.
The digital I/O interface (SPI) operates at 3.3V and requires that the
pin labeled “DVDD_I/O” (pin 49) be connected to 3.3V.
The AD9959 operates over the industrial temperature range of -40C to
+85
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD9959/PCBZ | 功能描述:BOARD EVALUATION FOR AD9959 RoHS:是 類別:編程器，開(kāi)發(fā)系統(tǒng) >> 評(píng)估演示板和套件 系列:- 標(biāo)準(zhǔn)包裝:1 系列:PSoC® 主要目的:電源管理，熱管理 嵌入式:- 已用 IC / 零件:- 主要屬性:- 次要屬性:- 已供物品:板，CD，電源 |
| AD9959/PCBZ | 制造商:Analog Devices 功能描述:AD9959, DDS, DAC, GUI, USB, EVALUATION B |
| AD9959/PCBZ1 | 制造商:AD 制造商全稱:Analog Devices 功能描述:4-Channel, 500 MSPS DDS with 10-Bit DACs |
| AD9959_08 | 制造商:AD 制造商全稱:Analog Devices 功能描述:4-Channel, 500 MSPS DDS with 10-Bit DACs |
| AD9959BCPZ | 功能描述:IC DDS QUAD 10BIT DAC 56LFCSP RoHS:是 類別:集成電路 (IC) >> 接口 - 直接數(shù)字合成 (DDS) 系列:- 產(chǎn)品變化通告:Product Discontinuance 27/Oct/2011 標(biāo)準(zhǔn)包裝:2,500 系列:- 分辨率（位）:10 b 主 fclk:25MHz 調(diào)節(jié)字寬（位）:32 b 電源電壓:2.97 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:帶卷 (TR) |
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