Following is datasheet comment,
"The only external components required are the input/output ac coupling capacitors, power supply decoupling capacitors, and dc bias inductor."
The general gain block amps need to dc bias inductor and/or dc bias resistor to select dc bias resistor to achieve the supply current.
Is it correct, not need to limit the supply current, with dc bias resistor ?
Can you comment regarding this matter or from anyone?
enash - san,
Thank you for reply.
I am slightly confused.
Please let me know if my understanding is Correct.
90mA @ 5.0V is spec over, 70(max) mA @ 5.0V ?
is it incorrect?
In the datasheet spec.,
POWER INTERFACE VPOS Supply Voltage:4.75(min) 5(typ) 5.25(max) V Supply Current:56(typ) 70(max) mA vs. Temperature:−40°C ≤ TA ≤ +85°C −6(typ) mA
Figure 21. Supply Current vs. Temperature
Figure 24. Supply Current vs. POUT at 900 MHz
Figure 25. Supply Current vs. POUT and Temperature at 900 MHz
Correct, you just need a bias inductor, as described in the Basic Connections schematic (Figure 26). With a supply voltage of 5V, this will result in a bias current of approx. 90mA