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MBF9412B

Surface Acoustic Wave (SAW) Filters for Mobile and Portable Phones

Oki Electric Industry 

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 manu-

facturing cost in an industry standard 6-pin package, 1.2-mm thick and 3.0-mm square.

These 50-Ω 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 pro-

viders. 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 transmit-

ter 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 expe-

rience and very high volume manufacturing capability to meet customer demands.

FEATURES

• Low insertion loss

• Small size, light weight

• 50-Ω matched

• 6-pin SMD package

• High reliability

SAW Filter Summary [1]

Part

Number

MBF9411B

MBF9412B

Description

CDMA Transmit Filter

CDMA Receive Filter

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

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-Ω I/O

Attenuation

(dB)

>30

>30

Oki Semiconductor

1

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