CER0687A Datasheet, PDF (1/2 Pages) CTS Corporation – Surface mount, silver (Ag) coated ceramic duplexer.

Features
• Low Loss
• Low Ripple
• High Rejection
CER0687A
768.5 Mhz Duplexer
Revision B – Origin Date: May 5, 2009 – Revision Date: July 28, 2011
Description
Surface mount, silver (Ag) coated ceramic
duplexer. Developed for use in 700 MHz
subscriber and infrastructure applications.
Weight: 3.9 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
Low Band Response (S21)
Pass band Ilos s
Passband Ripple
Pass band Return Los s @ Port 1
Pass band Return Los s @ Port 2
Attenuation
High Band Response (S13)
Pass band Ilos s
Passband Ripple
Pass band Return Los s @ Port 1
Pass band Return Los s @ Port 2
Attenuation
Isolation (S23)
Rejection @ Low Band
Rejection @ High Band
Power into any port
Frequency
MHz
746 - 757
746 - 757
746 - 757
746 - 757
776 - 787
776 - 787
776 - 787
776 - 787
776 - 787
746 - 757
746 - 757
776 - 787
Typical
@ 25ºC
-2.9
2.1
-11.0
-11.0
-52.0
-3.2
2.7
-11.0
-11.0
-41.0
-43.0
-53.0
3 Watt max
Specification
Spec over
@ 25ºC
-40ºC to +85ºC
-3.40
2.40
-10.00
-10.00
-50.00
-3.50
2.50
-10.00
-10.00
-49.00
-3.40
2.90
-10.00
-10.00
-39.00
-3.80
3.00
-10.00
-10.00
-38.00
-41.00
-51.00
-40.00
-50.00
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 - 4800 Alameda Blvd. NE – Albuquerque, NM 87113-