B3577 PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 B3577
기능 SAW Components Low-loss Filter
제조업체 EPCOS
로고 EPCOS 로고 

전체 6 페이지


No Preview Available !

B3577 데이터시트, 핀배열, 회로
SAW Components
Data Sheet B3577

B3577 pdf, 반도체, 판매, 대치품
SAW Components
Low-loss Filter
311,06 MHz
Data Sheet
Matching network to 50 (element values depend on pcb layout and equivalent circuit)
Ls1 = 56 nH
Ls2 = 56 nH
Minimising the crosstalk
For a good ultimate rejection a low crosstalk is necessary. Low crosstalk can be realised with
a good RF layout. The major crosstalk mechanism is caused by the “ground-loop” problem.
Grounding loops are created if input-and output transducer GND are connected on the top-side
of the PCB and fed to the system grounding plane by a common via hole. To avoid the common
ground path, the ground pin of the input- and output transducer are fed to the system ground
plane (bottom PCB plane) by their own via hole. The transducers’ grounding pins should be
isolated from the upper grounding plane.
A common GND inductivity of 0.5nH degrades the ultimate rejection (crosstalk) by 20dB.
The optimised PCB layout, including matching network for transformation to 50 Ohm, is shown
here. In this PCB layout the grounding loops are minimised to realise good ultimate rejection.
Optimised PCB layout for SAW filters in QCC8C package, pinning 2,5 (top side, scale 1:1)
The bottom side is a copper plane (system ground area). The input and output grounding pins
are isolated and connected to the common ground by separated via holes.
For good contact of the upper grounding area with the lower side it is necessary to place
enough via holes.
4 Sep 09, 2005


구       성총 6 페이지
다운로드[ B3577.PDF 데이터시트 ]
구매 문의
일반 IC 문의 : 샘플 및 소량 구매

전력 반도체 판매 ( IGBT, TR 모듈, SCR, 다이오드 모듈 )

상호 : 아이지 인터내셔날

사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ]


링크 :

관련 데이터시트

부품번호상세설명 및 기능제조사

SAW Components Low-loss Filter


SAW Components Low-loss Filter

EPCOS    |   2020   |  연락처   |  링크모음   |   검색  |   사이트맵