TSI721 datasheet(45/67 Pages) RENESAS

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Tsi721 Datasheet

April 4, 2016

Integrated Device Technology

3.7.4.0.1

Level I Receiver Specifications

Level I LP-Serial receiver electrical and timing specifications are stated in the text and tables of this section.

1. Input common mode voltage for AC-coupled or floating load input with min. T_Vdiff.

2. Receiver is required to implement at least one of the specified nominal R_Vtt values, and usually implements only one of

these values. Receiver is only required to meet R_Vrcm parameter values that correspond to R_Vtt values supported.

3. Input common mode voltage for AC-coupled or floating load input with min. T_Vdiff.

4. For floating load, input resistance must be > 1K Ohm.

Table 23: Level I Receiver Electrical Input Specifications

Characteristic

Symbol

Reference

Minimum

Typical

Maximum

Units

Rx baud rate (1.25 Gbps)

R_Baud

1.250

Gbps

Rx baud rate (2.5 Gbps)

2.500

Gbps

Rx baud rate (3.125 Gbps)

3.125

Gbps

Absolute input voltage

R_Vin

Section

9.4.3.4

---

Input differential voltage

R_Vdiff

Section

9.4.3.3

200

1600

mVppd

Differential resistance

R_Rdin

Section

9.4.3.7

100

120

Ohm

Differential input return loss

(100 MHz < f < R_Baud/2)

R_SDD11

Section

9.4.3.7

---

Differential input return loss

(R_Baud/2 < f < R_Baud)

---

Common mode input return loss

(625 MHz < f < T_baud)

R_SCC11

Section

9.4.3.7

---

Termination voltage1,2

R_Vtt

floating4

Not specified

Input common mode voltage1,2

R_Vrcm

R_Vtt

floating3,4

-0.05

1.85

Wander divider

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