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PDF TQ1422 Data sheet ( Hoja de datos )
| Número de pieza | TQ1422 | |
| Descripción | GSM850/900 and DCS1800/PCS1900 Tx-Bandpass Filter | |
| Fabricantes | TriQuint Semiconductor | |
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(Advanced data sheet)
TQ1422www.DataSheet4U.com
GSM850/900 and DCS1800/PCS1900 Tx – Bandpass Filter
Features:
• Low insertion loss
• High suppression of 2nd,3rd , 4th 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)
Package Outline:
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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1 page  
Pin Out:
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Pin # Description Function
1 DCS_IN1
DCS balanced input , 80Ohm || -0.8pF @ 1810MHz
2 DCS_IN2
3 VCC1
Input bias voltage *)1
4 GSM_IN1
GSM balanced input, 310Ohm || -0.85pF @ 875MHz
5 GSM_IN2
6 GSM_OUT GSM single ended output, 50Ohm
7 GND
GSM isolated GND *)2
8 VCC2
Input bias voltage *)1
9 GND
DCS isolated GND *)2
10 DCS_OUT DCS single ended output, 50Ohm
(11) Heat sink Common GND
*)1 Either VCC1 or VCC2 needs to be connected. VCC1 and VCC2 are alternate inputs short-circuited on
TQ1422.
*)2 Isolated GND pins must not be connected to the heat sink directly. Use (separated) vias to connect to the
PCB RF ground plane as close as possible !
Copyright © 2004 TriQuint Semiconductor Inc., All rights reserved (Rev 1.17 2004-08-06)
All specifications subject to change without notice
5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet TQ1422.PDF ] | |
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