LMKDB1108FS datasheet(35/133 Pages) TI2

Il numero della parte	LMKDB1108FS

Spiegazioni elettronici	LMKDB11xx PCIe Gen 1 to Gen 7 Ultra Low Jitter LP-HCSL Clock Buffer Family

PDF	133 Pages

Scroll/Zoom	100%

Produttore elettronici	TI2 [Texas Instruments]

Homepage	https://www.ti.com

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35 / 133 page

6.9 Typical Characteristics

Figure 6-3. Input Source at 156.25MHz (12kHz - 20MHz)

See Note 1 and 2 in Graph Notes table

Figure 6-4. LMKDB11xx Phase Noise / Output Jitter at

156.25MHz (12kHz - 20MHz)

Table 6-1. Graph Notes

NOTE

(1)

The typical RMS jitter values in the plots show the total output RMS jitter (JOUT) for each frequency and the source clock RMS

jitter (JSOURCE). From these values, the Additive RMS Jitter can be calculated as: JADD = SQRT(JOUT 2 – JSOURCE 2).

(2)

JADD at 156.25MHz = SQRT(33.92- 25.82) = 22.0fs

7 Parameter Measurement Information

LMKDB

100-

LP-HCSL Driver

15 dB loss at 4 GHz

Differential PCB trace

ZDiff = 100

± 10%

High impedance

differential probe

2 pF

Figure 7-1. PCIe AC Test Load

2pF

25.4cm

Differential PCB trace, ZDiff = 85

High impedance

differential probe

LMKDB

LP-HCSL Driver

Figure 7-2. DB2000QL AC Test Load

www.ti.com

LMKDB1102, LMKDB1104, LMKDB1104FS, LMKDB1108, LMKDB1108FS

LMKDB1112, LMKDB1120, LMKDB1120FS

SNAS855G – NOVEMBER 2023 – REVISED MAY 2026

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Product Folder Links: LMKDB1102 LMKDB1104 LMKDB1104FS LMKDB1108 LMKDB1108FS LMKDB1112 LMKDB1120 LMKDB1120FS

LMKDB1108FS Scheda tecnica(PDF) 35 Page - Texas Instruments