CER0127A

900 MHz EGSM Duplexer

Document No. 008-0256-0

Page 1 of 2

Rev. X4VH

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.

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

TX to Antenna Response

Passband Insertion Loss

925-960

3.54 dB

3.9 dB max

4.2 dB max

Passband Return Loss @ TX

925-960

12.4 dB

10.5 dB min

10.0 dB min

Passband Return Loss @ ANT

925-960

13.3 dB

10.5 dB min

10.0 dB min

Passband Ripple

925-960

2.42 dB

2.6 dB max

3.1 dB max

Antenna to RX Response

Passband Insertion Loss

880-915

3.51 dB

3.8 dB max

4.0 dB max

Passband Return Loss @ RX

880-915

12.1 dB

10.5 dB min

10.0 dB min

Passband Return Loss @ ANT

880-915

12.3 dB

10.5 dB min

10.0 dB min

Passband Ripple

880-915

2.36dB

2.6 dB max

3.1 dB max

Attenuation:

540-575

47.7 dB

45.5 dB min

45 dB min

710-745

36.6 dB

30.5 dB min

30 dB min

TX to RX Response

Rejection @ TX band

925-960

44.2 dB

40.5 dB min

40 dB min

Rejection @ RX band

880-915

37.4 dB

30.5 dB min

35 dB min

Power into any port

1 Watt max

Spec. Over

-40ºC to +85ºC

Parameter

Frequency

(MHz)

Spec. @ 25ºC

Typical @ 25ºC

Electrical Specifications

Rev 1 – 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.”