CER0637A
1770 MHz Duplexer
Features
• Low Insertion Loss
• Low Ripple
• Excellent Rejection and Isolation
Description
Surface mount, silver (Ag) coated ceramic
duplexer. Developed for use in 1770 MHz
Infrastructure Applications.
Weight: TBD grams typical
Material: Filter is composed of a ceramic
block plated with Ag and a shield made of
Sn plated steel.
Filter complies with RoHS standards.
Revision B - Origin Date: September 12, 2009 – Revision Date: July 28, 2011
Electrical Specifications
Parameter
Low Band Response
Passband Iloss
Passband Ripple
Passband Return Loss @ Ant
Passband Return Loss @ Low Band
Attenuation
High Band Response
Passband Iloss
Passband Ripple
Passband Return Loss @ Ant
Passband Return Loss @ High Band
Attenuation
Isolation
Rejection @ Low Band
Rejection @ midpoint
Rejection @ High Band
Frequency
MHz
1710 - 1735
1710 - 1735
1710 - 1735
1710 - 1735
1805 - 1830
3420 - 3470
1805 - 1830
1805 - 1830
1805 - 1830
1805 - 1830
1710 - 1735
3610 - 3660
1710 - 1735
1736 - 1804
1805 - 1830
Typical
@ 25ºC
-2.30
0.90
-13.00
-13.00
-60.00
-11.00
-2.30
1.00
-13.00
-13.00
-60.00
-19.00
-61.00
-51.00
-61.00
Specification
@ 25ºC
-2.40
1.40
-12.00
-12.00
-55.00
-10.00
-2.40
1.40
-12.00
-12.00
-55.00
-18.00
-60.00
-50.00
-60.00
Spec over
-40ºC to +85ºC
-2.50
1.50
-12.00
-12.00
-55.00
-10.00
-2.50
1.50
-12.00
-12.00
-55.00
-18.00
-60.00
-50.00
-60.00
Power into any port
3 Watt max
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 -
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