參數(shù)資料
型號(hào)： PT4316-X
廠商： Princeton Technology Corporation
英文描述： Low Power 315/433 MHz OOK/ASK Superheterodyne Receiver with SAW-based Oscillator
中文描述： 低功耗433分之315兆赫元件Ook / ASK超外差接收器與基于SAW振蕩器
文件頁(yè)數(shù)： 14/27頁(yè)
文件大小： 501K
代理商： PT4316-X
Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
PCB LAYOUT CONSIDERATION
Proper PCB layout is extremely critical in achieving good RF performance. At the very least, using a
two-layer PCB is strongly recommended, so that one layer may incorporate a continuous ground plane.
A large number of via holes should connect the ground plane areas between the top and bottom layers.
Note that if the PCB design incorporates a printed loop antenna, there should be no ground plane
beneath the antenna.
Within the PT4316, the power supply rails of the LNA and others blocks should be separated for
improving the isolation and minimizing the noise coupling effects. Careful consideration must also be
paid to the supply power and ground at the board level. The larger ground area plane should be placed
as close as possible to the VSS and VSSLNA pins. To reduce supply bus noise coupling, sensitive
blocks such as the LNA or mixer should be biased thru separated power supply traces, incorporating
series-R, shunt-C filtering as the following figure.
PT4316 V1.6
- 14 -
August, 2007
Low Power 315/433 MHz OOK/ASK Superheterodyne
Receiver with SAW-based Oscillator
PT4316
If the power source is capable of supplying a stable voltage, C’ may be ignored. In some applications,
the DC source may be supplied from a simple AC-DC transformer. In such cases, the DC voltage level
could be unstable and may adversely affect ASK/OOK receiver sensitivity. A solution may be to
increase C to an appropriately large value while continuing to make the power source as stable as
possible.
Finally, in an RF system, it is extremely important to keep the LNA or RF signal traces away from large
voltage swing signals and digital data signal traces to avoid unnecessary interference.
相關(guān)PDF資料
PDF描述
PT4316-XL Low Power 315/433 MHz OOK/ASK Superheterodyne Receiver with SAW-based Oscillator
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PT4316-XL 制造商:PTC 制造商全稱:Princeton Technology Corp 功能描述:Low Power 315/433 MHz OOK/ASK Superheterodyne Receiver with SAW-based Oscillator
PT4317 制造商:PTC 制造商全稱:Princeton Technology Corp 功能描述:PT4317 Low Power 315/433MHz OOK/ASK Superheterodyne Receiver with SAW-Based Oscillator
PT431F 制造商:Sharp Microelectronics Corporation 功能描述:
PT4-4 制造商:WM BERG 功能描述:
PT4400 制造商:TI 制造商全稱:Texas Instruments 功能描述:75-W 48-V Input Isolated DC/DC Converter
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