CER0644A Datasheet, PDF (1/2 Pages) CTS Corporation – Surface mount, silver (Ag) coated ceramic 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.
CER0644A
1797.5 MHz Duplexer
Revision B - Origin Date: September 12, 2009 – Revision Date: July 27, 2011
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.
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
Power into any port
Frequency
MHz
1745 - 1755
1745 - 1755
1745 - 1755
1745 - 1755
1840 - 1850
3490 - 3510
1840 - 1850
1840 - 1850
1840 - 1850
1840 - 1850
1745 - 1755
3680 - 3700
1745 - 1755
1755 - 1840
1840 - 1850
Typical
@ 25ºC
Specification Spec over
@ 25ºC
-40ºC to +85ºC
-2.30
0.90
-13.00
-13.00
-60.00
-11.00
-2.40
1.40
-12.00
-12.00
-55.00
-10.00
-2.50
1.50
-12.00
-12.00
-55.00
-10.00
-2.30
1.00
-13.00
-13.00
-60.00
-19.00
-2.40
1.40
-12.00
-12.00
-55.00
-15.00
-2.50
1.50
-12.00
-12.00
-55.00
-15.00
-61.00
-51.00
-61.00
3 Watt max
-60.00
-50.00
-60.00
-60.00
-50.00
-60.00
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 Co_Drp_oor_cat_uio_mn 2_e00_n6_tre_Nse_orve_.s a₀ll₀co₈p_-y₀rig₂ht₅s ₆in_-t₀he layout, design and configuration of the patterns on this product.” _{Page 1 of 2}
Rev. X4VH
- CTS Electronic Components - www.ctscorp.com – 4800 Alameda Blvd NE - Albuquerque, NM 87113 -