Data Sheet

CER0256B
815/860 MHz Duplexer
Rev 2 – Origin Date: December 16, 2005 – Revision Date: March 3, 2006
Features
• High rejection
• Low Loss
Description
Surface mount, silver (Ag) coated ceramic
duplexer.
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
Passband Insertion Loss
Passband Return Loss @ TX
Passband Return Loss @ ANT
Attenuation:
High Band Response
Passband Insertion Loss
Passband Return Loss @ RX
Passband Return Loss @ ANT
Attenuation:
Frequency
(MHz)
Typical @ 25ºC Spec. @ 25ºC
Spec. -40ºC to
+85ºC
806 - 824
806 - 824
806 - 824
851 - 869
2.4 dB
13.5 dB
13.5 dB
53 dB
2.8 dB max
10.0 dB min
50.0 dB min
50.0 dB min
3.0 dB max
10.0 dB min
50.0 dB min
50.0 dB min
851 - 869
851 - 869
851 - 869
806 - 824
896 - 941
2.5 dB
13.5 dB
13.5 dB
53 dB
33.0 dB
2.8 dB max
10.0 dB min
50.0 dB min
50.0 dB min
30.0 dB min
3 Watt max
3.0 dB max
10.0 dB min
50.0 dB min
50.0 dB min
30.0 dB min
Power into any port
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 -
CER0256B
815/860 MHz Duplexer
Mechanical Drawing
Rev 1 – Origin Date: December 16, 2005 – Revision Date: January 11, 2006
Dim
A
B
C
D
E
F
G
H
I
J
K
L
M
*N
Electrical response
Nominal (mm)
Tolerance (mm)
+/- or max
21.54
max
2.72
7.95
7.95
0.76
1.00
1.00
0.76
9.80
8.90
4.00
0.80
0.20
0.20
0.20
0.13
0.13
0.13
0.13
0.30
0.20
max
0.13
PCB Layout
815
860
In Development
Packaging and Marking
Customer Feed Direction
DIMENSION
REEL DIAMETER
REEL WEIGHT
REEL QUANTITY
UNITS SPECIFICATION
330
mm
2.6
kg
500
ea.
Document No. 008-0256-0
Page 2 of 2
Rev. X4VH
- CTS Electronic Components - www.ctscorp.com - 171 Covington Drive - Bloomingdale, IL 60108 -
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