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MBF9411B/9412B
Surface Acoustic Wave (SAW) Filters DESCRIPTION
The new MBF9411B/9412B Surface Acoustic Wave (SAW) filters use Oki's third generation design and manufacturing technology to achieve a high out-of-band attenuation, low insertion loss, and low manufacturing cost in an industry standard 6-pin package, 1.2-mm thick and 3.0-mm square. These 50- matched bandpass microwave RF filters are designed for the worldwide standard wireless voice and data communications frequencies being used by cellular and wireless local-loop service providers. They have achieved design acceptance by leading wireless handset manufacturers in North America, Europe, and Asia. Oki's lowest insertion loss SAW filters and high performance GaAs devices are used to reduce transmitter complexity. Receiver designs can be simplified by using the higher Tx frequency attenuation SAW filters. These devices take advantage of Oki's 16-year plus RF communications component manufacturing experience and very high volume manufacturing capability to meet customer demands.
FEATURES
* Low insertion loss * Small size, light weight * 50- matched SAW Filter Summary [1]
Part Number MBF9411B MBF9412B Pass Frequency (MHz) 824 to 849 869 to 894 Insertion Loss (dB) <3.5 <3.5 Stop Frequency (MHz) 869 to 1049 779 to 849 Attenuation (dB) >30 >30
* 6-pin SMD package * High reliability
Description CDMA Transmit Filter CDMA Receive Filter
1. All parts in 6-pin ceramic square package (3.0 mm x 3.0 mm) by 1.2-mm thick with system matched 50- I/O
Oki Semiconductor
1
s MBF9411B/9412B s ----------------------------------------------------------------------------
PIN CONFIGURATION
6
3.0 5
4
1.2 TYP 1 1.2 TYP
0.6 2 3
Pin Number 1, 3, 4, 6 2
Signal Ground Input Output
3.0
1.0
5
6 1.2 5 1.2 4
1
2
3
Dimensions in mm.
0.3
BLOCK DIAGRAM
VCO Ant DUPLEXER Rx-BPF Rx-BPF RF Amp SAW Mixer IF Amp IF-BPF DEMO
Tx-BPF
Power Amp
SAW Tx-BPF
RF Amp
Mixer MOD
VCO
2
Oki Semiconductor
--------------------------------------------------------------------------- s MBF9411B/9412B s
ELECTRICAL CHARACTERISTICS
MBF9411B Electrical Characteristics (-40 to +85C)
Parameter Center Frequency (FC) Bandwidth (BW) Insertion Loss across BW Return Loss across BW Stop Band Attenuation Frequency (MHz) Fr 836.5 Fr 12.5 824 to 849 0.3 to 850 869 to 1049 1049 to 2000 Terminating Impedance Min. - - - 8.5 28 30 20 - Max. - - 3.5 - - - - 50 Units MHz MHz dB dB dB dB dB ohms
CH1 CH2
S11 log MAG S21 log MAG CDMA TX 1
5 dB/ 10 dB/
REF 0 db REF 0 db
1. -11.571 dB 1. -2.6971 dB 824.000 000 MHz 2. -19.721 dB 849 MHz 3. -1.7294 dB 869 MHz 4. -1.1989 dB 894 MHz
Cor 1 2 1 Hld 3 4
2 2 3 Cor 4 2. -2.0891 dB 849 MHz 3. -49.21 dB 869 MHz 4. -42.015 dB 894 MHz Hld CENTER 860.000 000 MHZ SPAN 200.000 000 MHZ
Figure 1. MBF9411B Frequency Response
Oki Semiconductor
3
s MBF9411B/9412B s ----------------------------------------------------------------------------
MBF9412B Electrical Characteristics (-30 to +85C)
Parameter Center Frequency (FC) Bandwidth (BW) Insertion Loss across BW Ripple across BW VSWR across BW Stop Band Attenuation 500 to 779 779 to 849 914 to 939 939 to 1049 1049 to 2000 Terminating Impedance Frequency (MHz) Ft 881.5 Fr 12.5 869 to 894 Min. - - - - - 25 30 20 35 25 - Max. - - 3.5 2.0 2.0 - - - - - 50 Units MHz MHz dB dB dB dB dB dB dB dB ohms
CH1 CH2
S11 log MAG S21 log MAG CDMA R-INT 1
5 dB/ 10 dB/
REF 0 db REF 0 db
1. -.9518 dB 1. -40.088 dB 824.000 000 MHz 2. -1.8131 dB 894 MHz 3. -13.744 dB 869 MHz 4. -31.116 dB 894 MHz
Cor 1 2 3 4
Hld 1 3
PASS 2
2 2. -41.148 dB 849 MHz Cor 4 3. -2.8434 dB 869 MHz 4. -2.3963 dB 894 MHz PASS Hld START 760.000 000 MHz STOP 960.000 000 MHz
Figure 2. MBF9412B Frequency Response
4
Oki Semiconductor
The information contained herein can change without notice owing to product and/or technical improvements. Please make sure before using the product that the information you are referring to is up-to-date. The outline of action and examples of application circuits described herein have been chosen as an explanation of the standard action and performance of the product. When you actually plan to use the product, please ensure that the outside conditions are reflected in the actual circuit and assembly designs. Oki assumes no responsibility or liability whatsoever for any failure or unusual or unexpected operation resulting from misuse, neglect, improper installation, repair, alteration or accident, improper handling, or unusual physical or electrical stress including, but not limited to, exposure to parameters outside the specified maximum ratings or operation outside the specified operating range. Neither indemnity against nor license of a third party's industrial and intellectual property right,etc.is granted by us in connection with the use of product and/or the information and drawings contained herein. No responsibility is assumed by us for any infringement of a third party's right which may result from the use thereof. When designing your product, please use our product below the specified maximum ratings and within the specified operating ranges, including but not limited to operating voltage, power dissipation, and operating temperature. The products listed in this document are intended for use in general electronics equipment for commercial applications (e.g.,office automation, communication equipment, measurement equipment, consumer electronics, etc.).These products are not authorized for use in any system or application that requires special or enhanced quality and reliability characteristics nor in any system or application where the failure of such system or application may result in the loss or damage of property or death or injury to humans. Such applications include, but are not limited to: traffic control, automotive, safety, aerospace, nuclear power control, and medical, including life support and maintenance. Certain parts in this document may need governmental approval before they can be exported to certain countries. The purchaser assumes the responsibility of determining the legality of export of these parts and will take appropriate and necessary steps, at their own expense, for export to another country. Copyright 1997 Oki Semiconductor Oki Semiconductor reserves the right to make changes in specifications at anytime and without notice. This information furnished by Oki Semiconductor in this publication is believed to be accurate and reliable. However, no responsibility is assumed by OKI Semiconductor for its use; nor for any infringements of patents or other rights of third parties resulting from its use. No license is granted under any patents or patent rights of OKI.
Oki Semiconductor

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