SNLS313I September 2009 – October 2019 DS90UR905Q-Q1 , DS90UR906Q-Q1
PRODUCTION DATA.
The deserializer can enable receiver input equalization of the serial stream to increase the eye opening to the deserializer input.
NOTE
This function cannot be seen at the RxIN± input but can be observed at the serial test port (CMLOUTP/N) enabled through the Serial Bus control registers. The equalization feature may be controlled by the external pin or by register.
INPUTS | EFFECT | |||
---|---|---|---|---|
EQ3 | EQ2 | EQ1 | EQ0 | |
L | L | L | H | ≈1.5 dB |
L | L | H | H | ≈3 dB |
L | H | L | H | ≈4.5 dB |
L | H | H | H | ≈6 dB |
H | L | L | H | ≈7.5 dB |
H | L | H | H | ≈9 dB |
H | H | L | H | ≈10.5 dB |
H | H | H | H | ≈12 dB |
X | X | X | L | OFF(1) |