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DW9255 - 35.42MHz SAW Filter

Description

GPS receiver RF Front-end Miniature GPS receiver RF Front-end Data Reference DS4056 DS4374 LCS12/4 Fig.1 Pinout 1 DW9255 GPS Antenna SAW 1st IF Filter LNA GP2010/15 RF Front End DW9255 Clock Crystal GP2021 12 channel Correlator + Support Functions DATA BUS ADDRESS BUS TO PROCESSOR TCXO 2 x

Features

  • INPUT + s Insertion Loss of 17dB ±1dB (typical) s 1dB Bandwidth 1.9MHz (typical) s Passband Ripple 0.8dB (typical) s Low Profile Ceramic Surface Mount Package s Operating Temperature Range -40° to +85°C GND 3 2 INPUT - s Centre Frequency of 35.42MHz 1 12 GND GND 4 11 GND DW9255.

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Datasheet Details

Part number DW9255
Manufacturer Mitel Networks Corporation
File Size 34.50 KB
Description 35.42MHz SAW Filter
Datasheet download datasheet DW9255 Datasheet
Additional preview pages of the DW9255 datasheet.

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Full PDF Text Transcription

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DW9255 DW9255 35.42MHz SAW Filter for GPS Receivers DS3861 - 3.1 November 1997 OUTPUT+ OUTPUT- The DW9255 is a Surface Acoustic Wave (SAW) bandpass filter for use with the GP2000 Global Positioning System (GPS) receiver chip-set, available from Mitel Semiconductor. It is pre-tuned to the exact 2nd IF filter requirements of the GP2010 & GP2015 RF front-end devices, with a centrefrequency of 35.42MHz. The response is tuned for a flat passband, steep stopband and uniform passband group-delay with 3 external inductors. The device is realised on a Lithium Tantalate substrate and housed in a small leadless ceramic Surface Mount package. The DW9255 gives significant improvement in correlated GPS Signal-to-Noise Ratio (SNR) performance compared to conventional LC bandpass filter schemes.
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