CY7c65632 RREF

Tip / Sign in to post questions, reply, level up, and achieve exciting badges. Know more

cross mob
Anonymous
Not applicable

This is an external  650 OHms resistor according to the documentation. What is this resistor used for in the chip? Could a wrong value lead to USB packet err

0 Likes
1 Solution
YangyangC_06
Employee
Employee
750 replies posted 500 replies posted 250 replies posted

The RREF resistor is used to control the drive level of the high-speed (HS) signals. If you use a resistor with a value other

than 649 Ω, the HS signal quality will be degraded  over the range of temperature

View solution in original post

2 Replies
YangyangC_06
Employee
Employee
750 replies posted 500 replies posted 250 replies posted

The RREF resistor is used to control the drive level of the high-speed (HS) signals. If you use a resistor with a value other

than 649 Ω, the HS signal quality will be degraded  over the range of temperature

0 Likes
YangyangC_06
Employee
Employee
750 replies posted 500 replies posted 250 replies posted

The RREF resistor is used to control the drive level of the high-speed (HS) signals. If you use a resistor with a value other

than 649 Ω, the HS signal quality will be degraded  over the range of temperature