Data Sheet

KFF6637C
1900 MHz PCS Duplexer
Rev 1 – Origin Date: July 11, 2005 – Revision Date: March 3, 2006
Features
• Low Tx Insertion Loss
• Excellent Tx Isolation
• 4 mm Board Height
Description
Surface mount, silver (Ag) coated ceramic
duplexer. Developed for in PCS
infrastructure and subscriber applications
Weight: 3.065 grams typical
Material: Filter is composed of a ceramic
block plated with Ag and a shield made of
nickel silver plated steel.
Filter complies with RoHS standards.
Electrical Specifications
Parameter
TX to Antenna Response
Passband Insertion Loss
Passband Return Loss
Rejection @ RX band
Ripple
Antenna to RX Response
Passband Insertion Loss
Passband Return Loss
Rejection @ TX band
Ripple
TX to RX Response
Rejection @ RX band
Rejection @ TX band
Frequency
(MHz)
Typical @ 25ºC
Spec @ 25ºC
Spec. over
-40ºC to +85ºC
1850-1910
1850-1910
1930-1990
1850-1910
3.4 dB
12.0 dB
38.0 dB
2.7 dB
3.6 dB max
10 dB min
37dB min
3.0 dB max
3.85 dB max
9.0 dB min
35.0 dB max
3.2 dB max
1930-1990
1930-1990
1850-1910
1930-1990
3.9 dB
12.0 dB
58.0 dB
2.8 dB
4.2 dB max
10 dB min
55 dB min
3.0 dB max
4.55 dB max
9.0 dB min
53.0 dB min
3.3 dB max
1930-1990
1850-1910
40.0 dB
59 dB
39 dB min
56 dB min
37 dB min
54 dB min
Note: Supplier shall test each filter to the critical electrical specifications of the above table. Any subsequent audits may deviate from in value due to
measurement repeatability among different test systems. Such deviations shall not exceed the following limits:
Specification Allowance
Insertion Loss
0.1 dB
Return Loss
1.0 dB
Stopbands
1.0 dB
•“This product is covered by one or more of the following U.S. and foreign patents including: US 4,692,726;US 4,742,562; US 4,800,348;US 4,829,274;US 5,146,193;EP 0573597;DE 0573597;FR 0573597;JP 508149/92;KR 142171;US
5,162,760;US 5,218,329;US 5,250,916;US 5,327,109;US 5,488,335;CA 2114029;FR 9306297;GB 2273393;JP 3205337;KR 115113;CN 93106228.4;US 5,512,866;EP 0706719;DE 0706719;FR 0706719;GB 0706719;CN 95190359.4;US
5,602,518;US 5,721,520;US 5,745,018;EP 0910875;DE 0910875;DK 0910875;FR 0910875;GB 0910875;IE 0910875;JP 505182/98;KR 10-323013;US 5,994,978;US 6,462,629;CN 00810420.4;US 6,559,735;US 6,650,202;US 6,834,429.Other
US and foreign patents pending.
•CTS Corporation 2006 reserves all copyrights in the layout, design and configuration of the patterns on this product.”
Document No. 008-0256-0
Page 1 of 2
- CTS Electronic Components - www.ctscorp.com - 171 Covington Drive - Bloomingdale, IL 60108 -
Rev. X4VH
KFF6637C
1900 MHz PCS Duplexer
Rev 0 – Origin Date: July 11, 2005 – Revision Date: July 11, 2005
Mechanical Drawing
Electrical response
PCB Layout
Packaging and Marking
DIMENSION
REEL DIAMETER
REEL WEIGHT
REEL QUANTITY
UNITS SPECIFICATION
mm
kg
ea.
330
2.4
500
Customer Feed Direction
Document No. 008-0256-0
Page 2 of 2
- CTS Electronic Components - www.ctscorp.com - 171 Covington Drive - Bloomingdale, IL 60108 -
Rev. X4VH
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