PICOSECOND PULSE LABS P.O. BOX 44 BOULDER, CO 80306, USA TEL: 1.303.443.1249 FAX: 1.303.447.2236
WWW.PICOSECOND.COM
Spec-4040039, Revision 2, 5/01 Page 1 of 1
Model 5545
Bias Tee
65 kHz - 20 GHz 12 ps Risetime 50 V, 500 mA
Notes
[1] Parameters listed are typical values. They are guaranteed only when maximum and/or minimum limits are given.
[2] Not recommended for freq. domain applications above 15 GHz due to higher order mode resonances. [3] 10 ps risetime
step response measured using a PSPL Model 4015C 15 ps pulse generator and an HP-54124A, 50 GHz oscilloscope.
[4] Frequency response measured using a Wiltron 37369A, 40 MHz - 40 GHz network analyzer.
The Model 5545 is a broadband, coaxial bias insertion tee and DC blocking
capacitor. It passes fast rise pulses with a minimum of waveform distortion.
Its risetime is 12 ps. The frequency response is flat over many decades, and
the -3 dB bandwidth extends from 65 kHz to 20 GHz.
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
0.5 dB/div
Insertion Loss
10 ps/div
Group Delay
5 dB/div
Return Loss
Linear sweep from 40 MHz to 20 GHz, 2 GHz/div
Typical Frequency Domain and Time Domain Responses
50 Ohms
Ordering Information
Model Number Description
5545-107 Bias Tee with standard connectors
5545-108 Bias Tee (above) with mounting plate
5545-119 Bias Tee (above) with AC = plug (m)
Risetime (10%-9 0%) 12 ps, 15 ps max . Capacitance 0.03 µF, ±20%
Bandwidth (-3 dB) >20 G Hz [2] DC Voltage 50 V max.
Low Frequency (-3 dB) 65 kH z Inductance 340 µ H, ±20%
DC Current 500 mA max.
Insertion Loss 0.7 dB, typical
< 1 dB, f < 5 G Hz
< 1.5 dB, f < 12 G Hz Resistance 1.1
Impedance RF Power 2 W avg. m ax.
Delay 195 ps
Return Lo ss 23 dB, f = 100 M Hz
>20 dB , f < 6 G Hz
>12 dB , f < 14 GH z Conn ectors SMA jacks (f)
DC = s o lder pin
Refl. Coeff. (35ps TDR) -7%, t > 1 ns Dimensions 4.45 x 3.18 x 1.6 cm
(case) 2.54 x 2.54 x 1 .6 cm
Isolation >25 dB , typical Warranty One year. See Term s and
Conditions of Sale for details.
