TQ1422
(Advanced data sheet)
GSM850/900 and DCS1800/PCS1900 Tx – Bandpass Filter
Package Outline:
Features:
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•
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•
•
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Low insertion loss
High suppression of 2
nd
,3
rd
, 4
th
harmonics
High selectivity
Balanced to single-ended operation
GSM Input: 310 Ohm balanced
PCN/PCS Input: 80 Ohm balanced
50
Ω
single-ended output impedances.
Integrated DC-biasing to input
MLP 10L 3x3 package (3x3mm²)
Dimensions in mm
Application:
TX H2,H3,H4-Bandpass Filter / Balun for GSM850/900 and DCS/PCS systems
Description:
TQ1422 is a quadband capable TX bandpass filter for GSM850/E-GSM/DCS1800/PCS1900
applications. The integrated passive filter provides an optimum interface between the
TQM7M4011/4012/4014 Power Amplifier Modules and direct conversion transceiver with balanced
outputs. TQ1422 replaces up to 17 surface-mount components [including 2 Baluns and/or SAW
filter] typically required on the phone board to provide similar functionality. High value inductors to
supply open collector modulators are integrated.
Copyright © 2004 TriQuint Semiconductor Inc., All rights reserved (Rev 1.17 2004-08-06)
All specifications subject to change without notice
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