TQ1422 Datasheet

 
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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.


The above info is from ( http://www.seekic.com )

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)

The above info is from (www.seekic.com)

(Absolute) Maximum Ratings:

Parameter
Min
Max
Unit
Maximum input power
25
dBm
Maximum bias current GSM
50mA(Rmax=2Ohm)
mA
Maximum bias current PCN/PCS
50mA(Rmax=1.5Ohm)
mA
Operation temperate range
-40
+85
°C
Storage temperature range
-60
+150
°C


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Applications:
TX H2,H3,H4-Bandpass Filter / Balun for GSM850/900 and DCS/PCS systems