PSPL5545 Datasheet

PSPL5545 20 GHz Bias Tee Datasheet
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The PSPL5545 Bias Tee and DC Block is a broadband, coaxial bias insertion tee and DC blocking capacitor. It passes fast rise pulses with a minimum of waveform distortion. The rise time is 12 ps. The frequency response is flat over many decades, and the -3 dB bandwidth extends from 65 kHz to 20 GHz.

Key performance specifications
  • 65 kHz to 20 GHz
  • 12 ps rise time
  • 100 V, 500 mA

Typical performance

The following figure shows the S21 insertion loss at 0.5 dB/div.


The following figure shows the S21 group delay at 10 ps/div.


The following figure shows the S11 return loss at 5 dB/div.


The following figures show the linear sweep from 40 MHz to 20 GHz at 2 GHz/div.


500 ps/div, 100 ps/div, and 20 ps/div, 10 ps Step Response


2.5% rho/div and 500 ps/div, 35 ps TDR


Parameter Symbol Units Minimum Typical Maximum Comments
Impedance Z ohms   50     
Upper 3 dB frequency fc,h GHz   >20  1    
Lower 3 dB frequency fc,l kHz   65     
Rise time tr ps   12    10 – 90%
Insertion loss S21 dB   0.7 

f f
Input (AC)
Return Loss
S11 dB   23 
  f = 100 MHz
f f
Refl. Coefficient (35 ps TDR) Γ %   -7    t > 1 ns
DC voltage V V     50   
DC current I mA     500   
Capacitance C μF   0.03    ±20%
Inductance L μH   340    ±20%
Resistance R ohms   1.1     
RF power P W     Average power
Isolation S13 dB   >25     
DC path bandwidth fc,DC kHz   37     
Delay Td ps   195     
RF Connectors SMA jacks (f)
DC Connector Solder pin
Warranty One year

1 Not recommended for freq. domain applications above 15 GHz due to higher order mode resonances.

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