Data Sheet

CER0276A
900 MHZ Duplexer
Rev 2 – Origin Date: October 28, 2005 – Revision Date: November 29, 2005
Features
• Low Insertion Loss
• Low Ripple
• Excellent Rejection and Isolation
Description
Surface mount, silver (Ag) coated ceramic
duplexer. Developed for use in 800 MHz
EGSM Infrastructure Applications.
Weight: 12.25 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 (S13)
Passband Insertion Loss
Passband Ripple
Passband Return Loss @ S13
Passband Return Loss @ S31
Attenuation:
High Band Response (S21)
Passband Insertion Loss
Passband Ripple
Passband Return Loss @ S21
Passband Return Loss @ S12
Attenuation:
Isolation Response (S23)
Rejection @ Low Band
Rejection @ High band
Power into Any port
Frequency (MHz) Typical @ 25ºC Spec. @ 25ºC
Spec. over
-40ºC to +85ºC
880 - 915
880 - 915
880 - 915
880 - 915
925 - 960
2.2 dB max
1.6 dB max
12.5 dB min
12.5 dB min
38 dB min
2.5 dB max
1.9 dB max
10 dB min
10 dB min
35 dB min
2.7 dB max
2.0 dB max
10 dB min
10 dB min
35 dB min
925 - 960
925 - 960
925 - 960
925 - 960
880 - 915
2.2 dB max
1.2 dB max
13 dB min
13 dB min
41 dB min
2.5 dB max
1.5 dB max
11 dB min
11 dB min
38 dB min
2.7 dB max
1.6 dB max
11 dB min
11 dB min
38 dB min
880 - 915
925 - 960
43 dB min
40 dB min
6 Watt max
40 dB min
37 dB min
40 dB min
37 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
Document No. 008-0256-0
Page 1 of 2
- CTS Electronic Components - www.ctscorp.com - 171 Covington Drive - Bloomingdale, IL 60108 -
Rev. X4VH
CER0276A
900 MHZ Duplexer
Mechanical Drawing
Rev 2 – Origin Date: October 28, 2005 – Revision Date: November 29, 2005
Dim
Nominal Tolerance (mm)
(mm)
+/- or max
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
max
5.02
9.67
13.86
2.03
0.64
0.64
2.03
13.70
12.67
6.50
0.89
2.79
2.29
0.64
0.55
2.79
0.25
0.13
0.13
0.13
0.13
0.13
0.13
max
max
max
0.13
0.13
0.13
0.13
0.13
0.13
2.50
2.83
4.46
5.50
7.13
8.04
16.00
16.31
17.94
18.16
19.53
19.74
21.38
22.53
25.53
26.36
28.00
29.03
30.66
31.03
33.53
PCB Layout
0.00
Electrical Response
33.80
-0.50
-0.20
0.00
1.53
2.29
3.50
4.67
RX
TX
942
897
ANT
7.67
9.67
31.53
33.53
21.53
22.53
11.00
12.00
0.00
2.00
12.67
13.17
Filter Outline
Exposed Conductor
Solder Resist Over Dielectric
Packaging and Marking
DIMENSION
REEL DIAMETER
REEL WEIGHT
REEL QUANTITY
Solder Resist Over Conductor
UNITS SPECIFICATION
mm
330
kg
3.8
ea.
250
Customer Feed Direction
CTS
207
YWW
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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