GS3590 datasheet(15/118 Pages) SEMTECH

15 / 118 page

GS3590

Final Data Sheet Rev.4



PDS-061414 September 2017

15 of 118

Semtech

Proprietary & Confidential

www.semtech.com

Note: For GSPI Timing see Table 4-12: GSPI Timing Parameters.

Serial Data Output Jitter (SDIO)

tOJ(125Mb/s)

BW = default,



Pattern = PRBS

—

0.015

0.08

2, 10

tOJ(270Mb/s)

—

0.035

0.08

2, 10

tOJ(1.485Gb/s)

—

0.025

0.08

2, 10

tOJ(2.97Gb/s)

—

0.04

0.08

2, 10

tOJ(Bypass)

—0.1

0.2

2, 10

Notes:

1. Values achieved with Semtech evaluation board and connector.

2. Measured using a clean input source.

3. Default value for CFG_EQ_INPUT_LAUNCH_SWING_COMP parameter in control register 0x18. The default parameter value is 80d (50h).

4. Default Cable Driver swing Setting.

5. Please see PLL_LOOP_ BANDWIDTH_ 1 for the full range of loop bandwidth settings.

6. Please see Section 4.4.3.1 for the further definition on Synchronous and Asynchronous Lock Time.

7. Output driver setting of 8.

8. Output driver setting of 36.

9. Trace insertion loss was measured with FR4 material using 7 mil strip-line traces using a PRBS23 signal.

10. Measured under minimal trace loss conditions.

11. Rise/fall time was measured between 80% and 20%.

12. When in Cable Equalizer Mode, the rise/fall time of signals at the source should not be more than 62ns.

Table 2-3: AC Electrical Characteristics (Continued)

VCC_DDI, VCC_CORE, VDD = +1.8V ±5% and VCCO_0, VCCO_1 = +2.5V ±5%, TA = -40°C to +85°C, unless otherwise shown.

Parameter

Symbol

Conditions

Min

Typ

Max

Units

Notes

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