CER0126A

1800 MHz DCS Duplexer

Document No. 008-0256-0

Page 1 of 2

Rev. X4VH

Features

• High Rejection

• Low Ripple

• Low Loss

Description

Surface mount, silver (Ag) coated ceramic

duplexer. Developed for use in DCS

infrastructure applications.

Weight: 3.2 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.

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

High Band Response (S21)

Passband Insertion Loss

1805-1880

2.50 dB

3.9 dB max

4.2 dB max

Passband Return Loss @ Port 2

1805-1880

12.6dB

10.5 dB min

10.0 dB min

Passband Return Loss @ Port 1

1805-1880

12.5dB

10.5 dB min

10.0 dB min

Passband Ripple

1805-1880

2.48 dB

2.8 dB max

3.1 dB max

Attenuation:

902.5-940

58.5 dB

30.5 min

30 dB

Low Band Response (S13)

Passband Insertion Loss

1710-1785

3.00 dB

3.95 dB max

4.2 dB max

Passband Return Loss @ Port 1

1710-1785

12.1dB

10.5 dB min

10.0 dB min

Passband Return Loss @ Port 3

1710-1785

13.0 dB

10.5 dB min

10.0 dB min

Passband Ripple

1710-1785

1.94 dB

2.8 dB max

3.1 dB max

Attenuation:

1370-1445

52.7 dB

50.5 dB min

50 dB min

Isolation (S23)

Rejection @ High band

1805-1880

46.5 dB

40.5 dB

40 dB min

Rejection @ Low band

1710-1785

33.5 dB

30.5 dB

30 dB min

Power into any port

2 Watts max

Spec. Over

-40ºC to +85ºC

Parameter

Frequency

(MHz)

Spec. @ 25ºC

Typical @ 25ºC

Electrical Specifications

Rev 2 – Origin Date: July 11, 2005 – Revision Date: March 3, 2006

•“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.”