AD8153ACPZ datasheet(14/24 Pages) AD

14 / 24 page

AD8153

Data Sheet

Rev. A | Page 14 of 24

LB_A

LB_B

LB_C

SEL

BICAST

Output A

Output B

Output C

Input A

Input C

Input A

Input C

Input A

Input B

Input A

Input B

Input A

Input B

Input C

RECEIVE EQUALIZATION

In backplane applications, the AD8153 needs to compensate for

signal degradation caused by long traces. The device supports

two levels of input equalization, configured on a per-port basis.

Table 6 summarizes the high-frequency asymptotic gain boost

for each setting.

Table 6. Receive Equalization Settings

EQ_A/B/C

EQ Boost

6 dB

12 dB

TRANSMIT PRE-EMPHASIS

Transmitter pre-emphasis levels can be set by pin control or

through the control registers when using the I2C interface. Pin

control allows two settings of PE. The control registers provide

two additional settings.

Table 7. Pre-Emphasis Settings

Serial Mode

Pin Mode

PE_A/B/C Setting

PE_A/B/C

PE Boost (%)

PE Boost (dB)

N/A

1.9

3.5

N/A

4.9

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