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參數(shù)資料
| 型號： | AD9830ASTZ-REEL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 5/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DDS 10BIT 50MHZ CMOS 48TQFP |
| 產(chǎn)品培訓模塊： | Direct Digital Synthesis Tutorial Series (1 of 7): Introduction Direct Digital Synthesizer Tutorial Series (7 of 7): DDS in Action Direct Digital Synthesis Tutorial Series (3 of 7): Angle to Amplitude Converter Direct Digital Synthesis Tutorial Series (6 of 7): SINC Envelope Correction Direct Digital Synthesis Tutorial Series (4 of 7): Digital-to-Analog Converter Direct Digital Synthesis Tutorial Series (2 of 7): The Accumulator |
| 標準包裝： | 2,000 |
| 分辨率（位）： | 10 b |
| 主 fclk： | 50MHz |
| 調(diào)節(jié)字寬（位）： | 32 b |
| 電源電壓： | 4.75 V ~ 5.25 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 48-LQFP |
| 供應商設(shè)備封裝： | 48-LQFP（7x7） |
| 包裝： | 帶卷 (TR) |
| 配用： | EVAL-AD9830EBZ-ND - BOARD EVALUATION AD9830 |
AD9830
–13–
Grounding and Layout
The printed circuit board that houses the AD9830 should be
designed so that the analog and digital sections are separated
and confined to certain areas of the board. This facilitates the
use of ground planes which can be separated easily. A mini-
mum etch technique is generally best for ground planes as it
gives the best shielding. Digital and analog ground planes
should only be joined in one place. If the AD9830 is the only
device requiring an AGND to DGND connection, then the
ground planes should be connected at the AGND and DGND
pins of the AD9830. If the AD9830 is in a system where mul-
tiple devices require AGND to DGND connections, the con-
nection should be made at one point only, a star ground point
that should be established as close as possible to the AD9830.
Avoid running digital lines under the device as these will couple
noise onto the die. The analog ground plane should be allowed
to run under the AD9830 to avoid noise coupling. The power
supply lines to the AD9830 should use as large a track as is pos-
sible to provide low impedance paths and reduce the effects of
glitches on the power supply line. Fast switching signals like
clocks should be shielded with digital ground to avoid radiating
noise to other sections of the board. Avoid crossover of digital
and analog signals. Traces on opposite sides of the board
should run at right angles to each other. This will reduce the ef-
fects of feedthrough through the board. A microstrip technique
is by far the best but is not always possible with a double-sided
board. In this technique, the component side of the board is
dedicated to ground planes while signals are placed on the other
side.
Good decoupling is important. The analog and digital supplies
to the AD9830 are independent and separately pinned out to
minimize coupling between analog and digital sections of the
device. All analog and digital supplies should be decoupled to
AGND and DGND respectively with 0.1
F ceramic capacitors
in parallel with 10
F tantalum capacitors. To achieve the best
from the decoupling capacitors, they should be placed as close
as possible to the device, ideally right up against the device. In
systems where a common supply is used to drive both the AVDD
and DVDD of the AD9830, it is recommended that the system’s
AVDD supply be used. This supply should have the recom-
mended analog supply decoupling between the AVDD pins of
the AD9830 and AGND and the recommended digital supply
decoupling capacitors between the DVDD pins and DGND.
REV. B
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參數(shù)描述 |
|---|---|
| AD9831 | 制造商:AD 制造商全稱:Analog Devices 功能描述:CMOS Complete DDS |
| AD9831AST | 制造商:Rochester Electronics LLC 功能描述:25 MHZ +5V/+3V, 10-BIT DDS DAC I.C. - Bulk 制造商:Analog Devices 功能描述:10BIT DAC DDS 25 MHZ +5V/+3V 9831 |
| AD9831AST-REEL | 制造商:Analog Devices 功能描述:Direct Digital Synthesizer 25MHz 1-DAC 10-Bit Parallel 48-Pin LQFP T/R 制造商:Rochester Electronics LLC 功能描述:25 MHZ +5V/+3V, 10-BIT DDS DAC I.C. - Tape and Reel |
| AD9831ASTZ | 功能描述:IC DDS 10BIT 25MHZ CMOS 48-LQFP 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 標準包裝: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） 供應商設(shè)備封裝:16-TSSOP 包裝:帶卷 (TR) |
| AD9831ASTZKL1 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
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