AD9082: CHIP GRADE

Hello,

I have a question about the CHIP GRADE of AD9082 from our customer.
Our customer purchased a number of AD9082.
He said that some AD9082 indicate 0x22 and another is 0x23.
According to page-231 of UG-1578, 0x23 indicates AD9082, AD9986, AD9207.
What grade does 0x22 indicate?

Best regards,

y_suzuki