CER0127A 900 MHz EGSM Duplexer 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 Document No. 008-0256-0 Page 1 of 2 Rev. X4VH ٠ CTS Electronic Components ٠ www.ctscorp.com ٠ 171 Covington Drive ٠ Bloomingdale, IL 60108 ٠ CER0127A 900 MHz GSM Duplexer 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 Rev. X4VH ٠ CTS Electronic Components ٠ www.ctscorp.com ٠ 171 Covington Drive ٠ Bloomingdale, IL 60108 ٠