LMKDB1104FS85 datasheet(1/69 Pages) TI2

Il numero della parte	LMKDB1104FS85

Spiegazioni elettronici	LMKDB12xx PCIe Gen 1 to Gen 7 Ultra Low Jitter 2 Input Clock MUX

PDF	69 Pages

Scroll/Zoom	100%

Produttore elettronici	TI2 [Texas Instruments]

Homepage	https://www.ti.com

Logo

1 / 69 page

LMKDB12xx PCIe Gen 1 to Gen 7 Ultra Low Jitter 2 Input Clock MUX

1 Features

• LP-HCSL clock MUX that support:

– PCIe Gen 1 to Gen 7

– CC (Common Clock) and IR (Independent

Reference) PCIe architectures

– Input clock with or without SSC

• DB2000QL compliant:

– All devices meet DB2000QL specifications

• Extremely low additive jitter:

– 31fs maximum 12kHz to 20MHz RMS additive

jitter at 156.25MHz

– 13fs maximum additive jitter for PCIe Gen 4

– 5fs maximum additive jitter for PCIe Gen 5

– 3fs maximum additive jitter for PCIe Gen 6

– 2.1fs maximum additive jitter for PCIe Gen 7

• Fail-safe input

• Flexible power-up sequence

• Automatic output disable

• Individual output enable

• SBI (Side Band Interface) for high-speed output

enable or disable

• LOS (Loss of Signal) input detection

• 85Ω or 100Ω output impedance

• 1.8V / 3.3V ± 10% power supply

• –40°C to 105°C ambient temperature

2 Applications

• High Performance Computing

• Server Motherboard

• NIC/SmartNIC

• Hardware Accelerator

3 Description

The LMKDB devices are a family of extremely-low-

jitter LP-HCSL clock muxes that support PCIe Gen 1

to Gen 7 and are DB2000QL compliant. The devices

provide flexible power-up sequence, fail-safe inputs,

individual output enable and disable pins, loss of input

signal (LOS) detection and automatic output disable

features, as well as excellent power supply noise

rejection performance.

Both 1.8V and 3.3V power supply voltages are

supported.

Package Information

PART NUMBER

PACKAGE(1)

PACKAGE SIZE(2)

LMKDB1208

RSL (VQFN, 48)

6mm × 6mm

LMKDB1204

REX (VQFN, 28)

4mm × 4mm

LMKDB1202

REY (VQFN, 20)

3mm × 3mm

(1)

For all available packages, see Section 13.

(2)

The package size (length × width) is a nominal value and

includes pins, where applicable.

PCIe Clock Source #1

LMKDB family

PCIe Clock MUX

SMBus

Control

OE#

Control

PCIe PHY

LP-HCSL

PCIe PHY

PCIe Device

Side-Band

Interface

Control Interface

PCIe Clock Source #2

Typical Application

LMKDB1202, LMKDB1204, LMKDB1208

SNAS927A – AUGUST 2025 – REVISED APRIL 2026

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

Codice articolo simile - LMKDB1104FS85

Produttore elettronici	Il numero della parte	Scheda tecnica	Spiegazioni elettronici
Texas Instruments	LMKDB1104FS85	5Mb / 95P	LMKDB11xx PCIe Gen 1 to Gen 7 Ultra Low Jitter LP-HCSL Clock Buffer Family REVISED AUGUST 2025
	LMKDB1104FS85	6Mb / 126P	LMKDB11xx PCIe Gen 1 to Gen 7 Ultra Low Jitter LP-HCSL Clock Buffer Family REVISED NOVEMBER 2025
	LMKDB1104FS85	6Mb / 133P	LMKDB11xx PCIe Gen 1 to Gen 7 Ultra Low Jitter LP-HCSL Clock Buffer Family REVISED MAY 2026
	LMKDB1104FS85REXR	5Mb / 95P	LMKDB11xx PCIe Gen 1 to Gen 7 Ultra Low Jitter LP-HCSL Clock Buffer Family REVISED AUGUST 2025
	LMKDB1104FS85REXR	6Mb / 126P	LMKDB11xx PCIe Gen 1 to Gen 7 Ultra Low Jitter LP-HCSL Clock Buffer Family REVISED NOVEMBER 2025

More results

Descrizione simile - LMKDB1104FS85

Produttore elettronici	Il numero della parte	Scheda tecnica	Spiegazioni elettronici
Integrated Circuit Syst...	ICS9FG1904B-1	221Kb / 22P	Frequency Generator for CPU, PCIe Gen 1, PCIe Gen 2 & FBD
Pericom Semiconductor C...	PI6C49003A	843Kb / 12P	PCIe Gen 2 Networking Clock Generator
	PI6C49004A	730Kb / 13P	PCIe Gen 2 Networking Clock Generator
	PI6CFGL201B	1Mb / 14P	2-Output Low Power PCIE Gen 1-2-3 Clock Generator
	PI6CFGL401B	1Mb / 14P	4-Output Low Power PCIE Gen 1-2-3 Clock Generator
	PI6CFGL601B	1,012Kb / 13P	6-Output Low Power PCIE Gen 1-2-3 Clock Generator
Silicon Laboratories	SL28PCIE30	338Kb / 16P	EProClock짰 Programmable PCIe Gen 2 Clock Generator
Renesas Technology Corp	9FGV0241	616Kb / 15P	2-OUTPUT VERY LOW POWER PCIE GEN 1–4 CLOCK GENERATOR November 16, 2022
Renesas Technology Corp	ICS9FG1904B-1	415Kb / 23P	Frequency Generator for CPU, PCIe Gen 1, PCIe Gen 2 & FBD 2019
Texas Instruments	LMKDB1120	2Mb / 70P	LMKDB1120 and LMKDB1108 Ultra-Low Jitter PCIe Gen 1 to Gen 6 LP-HCSL Clock Buffers NOVEMBER 2023

More results

LMKDB1104FS85 Scheda tecnica(PDF) 1 Page - Texas Instruments

LMKDB1104FS85 Scheda tecnica(HTML) 1 Page - Texas Instruments

Codice articolo simile - LMKDB1104FS85

Descrizione simile - LMKDB1104FS85

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69

Scheda tecnica Scarica

Link URL