CER0126A
1800 MHz DCS Duplexer
Rev 2 – Origin Date: July 11, 2005 – Revision Date: January 21, 2008
Features
• High Rejection
• Low Ripple
• Low Loss
Description
Surface mount, silver (Ag) coated ceramic
duplexer. Developed for use in DCS
infrastructure applications.
Weight: 3.2 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
High Band Response (S21)
Passband Insertion Loss
Passband Return Loss @ Port 2
Passband Return Loss @ Port 1
Passband Ripple
Attenuation:
Low Band Response (S13)
Passband Insertion Loss
Passband Return Loss @ Port 1
Passband Return Loss @ Port 3
Passband Ripple
Attenuation:
Isolation (S23)
Rejection @ High band
Rejection @ Low band
Power into any port
Frequency
(MHz)
1805-1880
1805-1880
1805-1880
1805-1880
902.5-940
1710-1785
1710-1785
1710-1785
1710-1785
1370-1445
1805-1880
1710-1785
Typical @ 25ºC Spec. @ 25ºC
2.50 dB
12.6dB
12.5dB
2.48 dB
58.5 dB
3.00 dB
12.1dB
13.0 dB
1.94 dB
52.7 dB
33.5 dB
46.5 dB
3.9 dB max
10.5 dB min
10.5 dB min
2.8 dB max
30.5 min
3.95 dB max
10.5 dB min
10.5 dB min
2.8 dB max
50.5 dB min
30.5 dB
40.5 dB
2 Watts max
Spec. Over
-40ºC to +85ºC
4.2 dB max
10.0 dB min
10.0 dB min
3.1 dB max
30 dB
4.2 dB max
10.0 dB min
10.0 dB min
3.1 dB max
50 dB min
30 dB min
40 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
Rev. X4VH
- CTS Electronic Components -
www.ctscorp.com
- 171 Covington Drive - Bloomingdale, IL 60108 -
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