Data Sheet

CER0688A
781.5 MHz BPF
Revision B – Origin Date: October 26, 2008 – Revision Date: July 28, 2011
Features
• Low Loss
• High Rejection
• Low Ripple
Description
Surface mount, Silver (Ag) coated ceramic
filter.
Weight: 3.1 grams typical
Material: Filter is composed of a ceramic
block plated with Ag and a shield of tin
coated cold rolled steel.
Filter complies with RoHS standards.
Electrical Specifications
Parameter
Response
Passband Iloss
Passband Ripple
Passband Return Loss @ Port 1
Passband Return Loss @ Port 2
Attenuation
Frequency
MHz
Typical
@ 25ºC
Specification
@ 25ºC
Spec over
-40ºC to +85ºC
776 - 787
776 - 787
776 - 787
776 - 787
0.1 - 250
220 - 750
750 - 766
797 - 815
815 - 938
968
1000 - 1600
-2.00
0.90
-14.50
-14.50
-34.00
-28.00
-19.00
-16.00
-29.00
-44.00
-33.00
-2.40
0.90
-12.00
-12.00
-31.00
-26.00
-16.00
-13.00
-26.00
-41.00
-31.00
-2.50
1.00
-12.00
-12.00
-30.00
-25.00
-15.00
-12.00
-25.00
-40.00
-30.00
Power into any port
3 Watt max
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-
CER0688A
781.5 MHz BPF
Revision B – Origin Date: October 26, 2008 – Revision Date: July 28, 2011
Mechanical Drawing
Dim
A
B
C
D
E
F
G
H
I
J
K
Electrical response
Nominal
(mm)
14.6
9.4
1.15
1.00
1.00
4.064
4.064
4.50
1.00
10.7
3.1
Tolerance (mm)
+/- or max
max
max
0.13
0.13
0.13
0.1
0.1
max
0.13
max
0.13
PCB Layout
600 640 680 720 760 800 840 880 920 960 1000
0
40
-10
30
-20
20
-30
10
-40
0
-50
-10
-60
-20
-70
-30
-80
-40
Packaging and Marking
DIMENSION
REEL DIAMETER
REEL WEIGHT
REEL QUANTITY
UNITS
SPECIFICATION
mm
kg
ea.
330
2.3
750
Customer Feed Direction
Product Marking
CTS
688
YWW
Document No. 008-0256-0
Wo
Ao
Bo
Ko
Po
Inches/mm
Inches/mm
Inches/mm
Inches/mm
Inches/mm
0.945"/24
0.433"/11
0.586"/14.9
0.189"/4.8
0.630"/16
Page 2 of 2
Rev. X4VH
- CTS Electronic Components - www.ctscorp.com - 4800 Alameda Blvd. NE – Albuquerque, NM 87113-
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