TSH690

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DETERMINING VBIAS AND R1 AT 450 MHz

Using the 450 MHz curves, you can easily deter-

power gain S21.

MHz operation’ section.

It’s generally more convenient to supply the Vbias

just need to add the R1 resistor beetween the

Using the curve ’Supply current vs Bias voltage’

One the same curve, you will find the total current

supply Icc versus the biasing conditions.

Figure 5 : Demo board silk screen (not to scale)

Figure 6 : Demo board top side (not to scale )