Category: Hardware
Product Number: HMC346AMS8GE
Hello.
I have two questions about HMC346AMS8GE.
1) Is it possible that the termination resistor of the reference attenuator is not 500Ω?
2) Is it safe to change the positive input connection resistance of the op-amp from 500 ohms to 330 ohms?
An event occurs where V2 only goes up to -3.5V even when -3.5V is applied to V1, and only about -10dB of attenuation is ensured.
In order to match the characteristics of V2 with respect to V1, the 500Ω of the V2 driver circuit was lowered by 330Ω to obtain almost the same characteristics.
The same circuit was used for the other lot, but no problem was observed.
Best regards,
