5.8 Typical Characteristics

Figure 5-1 shows typical EQ gain curves versus frequency for different EQ settings. Figure 5-2 shows typical differential

return loss for Rx and Tx pins.

Frequency (GHz)

0

2

4

6

8

10 12 14 16 18 20 22 24 26 28 30 32

-10

-5

0

5

10

15

20

25

EQ = 0

EQ = 1

EQ = 2

EQ = 5

EQ = 6

EQ = 7

EQ = 8

EQ = 9

EQ = 10

EQ = 11

EQ = 12

EQ = 13

EQ = 14

EQ = 15

EQ = 16

EQ = 17

EQ = 18

EQ = 19

Figure 5-1. Typical EQ Boost vs Frequency

Frequency (GHz)

0

4

8

12

16

20

24

-28

-24

-20

-16

-12

-8

-4

0

Rx

Tx

Figure 5-2. Typical Differential Return Loss

5.9 Typical Jitter Characteristics

Figure 5-3 and Figure 5-4 show eye diagrams at 20Gbps that compare jitter through calibration traces (left), and jitter through

TDP2004 (right) at TI evaluation boards with minimal channels. The eye diagrams illustrate that TDP2004 adds very little

random jitter (RJ).

Figure 5-3. Through Baseline Calibration Trace Setup for

20Gbps

Figure 5-4. Through TDP2004 for 20Gbps

TDP2004

SNLS745 – NOVEMBER 2023

www.ti.com

10

Submit Document Feedback

Copyright © 2023 Texas Instruments Incorporated

Product Folder Links: TDP2004