HMC608，Now the VPD has been set to high, but found IDD = 900mA, adjust the VGG voltage, the current has not dropped, what is the reason? "
We used a multimeter to test the HMC608 component and found that the components 19, 20, 21 were short-circuited to the middle pad. Does that mean that the chip has been burned out?
In the process of using HMC608, we found that the input voltage is 5V, VGG is - 2.6V, input 0dBm signal, output only 10dBm, is this normal? For the gain that 29DB does not achieve above?
I wonder knowing the junction temperature of HMC608. The datasheet only shows storage temperature and channel temperture.
A couple of questions regarding using the HMC608 in low-gain mode (i.e. pin 23 left floating):
* Is the P1dB affected by using low-gain mode? If so, are you able to tell me what it is?
* I'm finding that I need a more negative Vgg voltage to achieve…
Q: Is it possible to remove the 2.2 uF VGG decoupling capacitor of HMC608?
I am using the HMC980 bias controller with the HMC608 amplifier.
The input power to the amplifier is 3 dBm.
The bias conditions are: Rset=510 ohm (Idrain=300mA) delivering to the amplifier VDrain=4.8V and VG= -3.2V.
We are using the amplifier in an…
A: Figure 1 and figure 2 shows the gain data and Pout data for 9, 8 and 7 GHz respectively.
Figure 1. HMC608 Gain vs Pin at 9, 8 and 7 GHz
Figure 2. HMC608 Pout vs Pin at 9, 8 and 7 GHz