Data Sheet

CER0127A
900 MHz EGSM Duplexer
Rev 1 – Origin Date: July 11, 2005 – Revision Date: March 3, 2006
Features
• Extended GSM Band
• Low Loss
• Low Ripple
Description
Surface mount, silver (Ag) coated ceramic
duplexer. Developed for use in Extended
band GSM applications.
Weight: 3.7 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
TX to Antenna Response
Passband Insertion Loss
Passband Return Loss @ TX
Passband Return Loss @ ANT
Passband Ripple
Antenna to RX Response
Passband Insertion Loss
Passband Return Loss @ RX
Passband Return Loss @ ANT
Passband Ripple
Attenuation:
TX to RX Response
Rejection @ TX band
Rejection @ RX band
Power into any port
Frequency
(MHz)
Typical @ 25ºC
Spec. @ 25ºC
Spec. Over
-40ºC to +85ºC
925-960
925-960
925-960
925-960
3.54 dB
12.4 dB
13.3 dB
2.42 dB
3.9 dB max
10.5 dB min
10.5 dB min
2.6 dB max
4.2 dB max
10.0 dB min
10.0 dB min
3.1 dB max
880-915
880-915
880-915
880-915
540-575
710-745
3.51 dB
12.1 dB
12.3 dB
2.36dB
47.7 dB
36.6 dB
3.8 dB max
10.5 dB min
10.5 dB min
2.6 dB max
45.5 dB min
30.5 dB min
4.0 dB max
10.0 dB min
10.0 dB min
3.1 dB max
45 dB min
30 dB min
925-960
880-915
44.2 dB
37.4 dB
40.5 dB min
30.5 dB min
1 Watt max
40 dB min
35 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
- CTS Electronic Components - www.ctscorp.com - 171 Covington Drive - Bloomingdale, IL 60108 -
Rev. X4VH
CER0127A
900 MHz GSM Duplexer
Rev 0 – Origin Date: July 11, 2005 – Revision Date: July 11, 2005
Mechanical Drawing
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
9.00
8.00
4.00
0.80
0.20
0.20
0.20
0.13
0.13
0.13
0.13
max
0.20
max
0.13
PCB Layout
0
-10
Attenuation (dB)
-20
-30
-40
-50
-60
-70
-80
860
870
880
890
900
910
920
930
940
950
960
970
980
Frequency (MHz)
Packaging and Marking
DIMENSION UNITS SPECIFICATION
REEL DIAMETER
REEL WEIGHT
REEL QUANTITY
mm
kg
ea.
330
2.6
500
Customer Feed Direction
Document No. 008-0256-0
Page 2 of 2
- CTS Electronic Components - www.ctscorp.com - 171 Covington Drive - Bloomingdale, IL 60108 -
Rev. X4VH
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