TUSB1002AI datasheet(23/38 Pages) TI2

23 / 38 page

7.2.4 Application Curves

Freq = 5GHz

dB(SDD21) = –6.666

Figure 7-3. Insertion Loss for 8-inch 4mil FR4 Trace

7.3 Typical SATA, PCIe and SATA Express Application

SATA/PCIe/

SATA Express

Host

RXP2

RXN2

TXP2

TXN2

TUSB1002A

RXP1

RXN1

TXP1

TXN1

SATA/PCIe/

SATA Express

Device

FR4 trace

of length Y

FR4 trace

of length X

Downstream

Upstream

Figure 7-4. SATA/PCIe/SATA Express Typical Application

7.3.1 Design Requirements

Table 7-4. Design Parameters

PARAMETER

VALUE

VCC supply (3V to 3.6V)

3.3V

PCIe Support Required (Yes/No)

Yes

SATA Express Support Required (Yes/No)

Yes

SATA Support Required (Yes/No)

Yes, then ferrite beads (FB1 and FB2) and 49.9Ω required.

No, then ferrite bead (FB1 and FB2) and 49.9Ω not required.

TX1, TX2, RX2 A/C coupling Capacitor (176nF to 265nF)

220nF ±10%

RX1 A/C coupling Capacitor (297nF to 363nF)

Optional. But if implemented suggest 330nF ±10%

A to B FR4 Length (inches)

A to B FR4 Trace Width (mils)

C to D FR4 length (inches)

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TUSB1002A

SLLSF63C – MARCH 2018 – REVISED JULY 2024

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