Texas Instruments DS320PR810-SMP-EVM, Руководство пользователя, Страница: 5 / 19

2.4 DS320PR810 Equalization Control
Each channel of the DS320PR810 features a continuous-time linear equalizer (CTLE) that applies high-
frequency boost and low-frequency attenuation to help equalize the frequency-dependent insertion loss effects
of the passive channel.
Table 2-4 shows available equalization boost through EQ control pins (EQ1_0 and
EQ0_0 for channels 0–3 and EQ1_1 and EQ0_1 for channels 4–7) when in Pin Control mode (MODE = L0).
Table 2-4. Equalization Control Settings
EQ INDEX EQ1 PIN LEVEL EQ0 PIN LEVEL CTLE BOOST AT 8GHz (dB)
CTLE BOOST AT 16GHz
(dB)
0 L0 L0
Refer
to data sheet
Refer
to data sheet
1 L0 L1
2 L0 L2
3 L0 L3
4 L0 L4
5 L1 L0
6 L1 L1
7 L1 L2
8 L1 L3
9 L1 L4
10 L2 L0
11 L2 L1
12 L2 L2
13 L2 L3
14 L2 L4
15 L3 L0
16 L3 L1
17 L3 L2
18 L3 L3
19 L3 L4
The equalization gain of each channel of each device can also be set by writing to SMBus, I2C registers in I2C
Mode.
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SNLU298 – AUGUST 2021
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DS320PR810-SMP-EVM User's Guide 5
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