VOOHU-Produkte der Kategorie JL5109 100M Ethernet Switch IC

Ethernet-Schnittstellenchips

JL5109 100M Ethernet Switch IC

JL5109 combines eight external 100M ports with one MII host uplink in a QFN88 package at 10 by 10 millimetres. It suits mid-size managed switches where the host must reach the network alongside a dense front panel.

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Artikelnummern für JL5109 100M Ethernet Switch IC finden

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Produktauswahlergebnisse für JL5109 100M Ethernet Switch IC
Bild Artikelnummer Datenblatt Vergleichen Downloads SerieDatenratePortsSchnittstellenmodusMAC-SchnittstellenspannungExterne VersorgungsspannungKupfer-PortOptischer PortTemperaturGehäuseBaugröße Muster
VOOHU JL5109C-NC JL5109 100M Ethernet Switch IC JL5109C-NC SPEC JL5109-Serie100M8+1MII3.3V3.3V(1.1V)¹10 Base-TNA0~70℃QFN8810*10 mm

So wählen Sie aus

Selecting an Ethernet switch IC in four steps

Topology first, then speed, then the supply rails, then package and thermals.

  1. 01

    Decide the port topology

    Count the external ports you need, then decide whether the host has to send and receive traffic. If it does, you need a device with an uplink port.

  2. 02

    Choose 100M or gigabit

    The range covers 100M and gigabit. There are no 2.5G or faster devices here, so if the design needs those speeds, say so at enquiry.

  3. 03

    Check the supply rails

    Most devices need a low voltage core rail alongside the main supply. Confirm the rails and their sequencing before the power tree is fixed.

  4. 04

    Plan package and thermals

    Packages run from QFN48 at 6 by 6 up to TQFP176 at 20 by 20 millimetres. Higher port counts concentrate more heat in one device.

Parameters

Reading switch IC specifications

Port notation and the supply requirement are the two figures most often misread.

01

Port notation

A figure such as 5+1 means five external ports plus one host uplink. A single figure such as 5 or 8 means external ports only, with no separate uplink.

02

Link speed

100M on the JL51xx series, gigabit on the JL61xx series. Every device also supports 10Base-T on copper for legacy links.

03

Uplink interface

MII on most devices with an uplink, RMII on the JL5104. Devices listed as NA have no dedicated host interface at all.

04

Supply rails

Typically a 3.3 volt main supply with a 1.1 volt core rail, or 1.1 volt alone on some gigabit parts. Missing a rail prevents the device starting.

05

Fibre support

1000Base-X appears on the JL6110 and on the S variants of the JL6107. Other devices in the range are copper only.

06

Temperature grade

NC and PC suffixes cover 0 to 70 degrees; NI and PI cover minus 40 to 85. Not every series offers both grades.

Vergleichen

Switch IC series side by side

Port count and uplink presence separate the series more than speed does.

Zur Produktauswahl zurückkehren ↑
SerieArtikelnummernDatenratePortsSchnittstellenmodusMAC-SchnittstellenspannungExterne VersorgungsspannungKupfer-PortOptischer PortTemperaturGehäuseBaugrößeAktion
JL5104-Serie2100M3+1RMII3.3V3.3V(1.1V)¹10 Base-TNA0~70℃, -40~85℃QFN486*6 mmFiltern →
JL5105-Serie2100M5NANA3.3V(1.1V)¹10 Base-TNA0~70℃, -40~85℃QFN486*6 mmFiltern →
JL5106-Serie2100M5+1MII3.3V3.3V(1.1V)¹10 Base-TNA0~70℃, -40~85℃QFN649*9 mmFiltern →
JL5108-Serie2100M8NANA3.3V(1.1V)¹10 Base-TNA0~70℃, -40~85℃QFN649*9 mmFiltern →
JL5109-Serie1100M8+1MII3.3V3.3V(1.1V)¹10 Base-TNA0~70℃QFN8810*10 mmFiltern →
JL5110-Serie1100M8+2MII3.3V3.3V(1.1V)¹10 Base-TNA0~70℃QFN8810*10 mmFiltern →
JL6105-Serie11G5NANA1.1V10 Base-TNA0~70℃QFN8810*10 mmFiltern →
JL6107-Serie61G5+2MII1.8V1.1V, 3.3V(1.1V)¹10 Base-TNA, 1000 Base-X0~70℃, -40~85℃LQFP12814*14 mmFiltern →
JL6108-Serie11G8NANA1.1V10 Base-TNA0~70℃LQFP12820*14 mmFiltern →
JL6110-Serie21G8+2MII3.3V1.1V10 Base-T1000 Base-X0~70℃, -40~85℃TQFP17620*20 mmFiltern →

Anwendungsprüfung

Where these switch ICs are used

Confirm the port topology, whether the host must manage traffic, and the environment.

Anwendungsprüfung

Embedded devices with a few ports

  • Confirm whether the host must join the network. If it does, choose a device with an uplink such as the 3+1 or 5+1 configurations.
Anwendungsprüfung

Unmanaged port expansion

  • Where the host does not need to send traffic, a device with external ports only is simpler and needs no uplink routing.
Anwendungsprüfung

Industrial switches with fibre uplink

  • Check which specific part supports 1000Base-X, then confirm the optical module and the supply rails the device needs.
Anwendungsprüfung

Cascaded multi-device designs

  • Two uplinks allow one to reach the host and one to cascade. Estimate cross-device traffic so the cascade link does not bottleneck.
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Documents

Switch IC datasheets and reference designs

Datasheets carry the supply sequencing, pinout and reference schematic per device.

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Aufgeführte PDF-Datenblätter
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Aufgeführte 3D-Dateisätze
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Aufgeführte PCB-Footprints

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Kategorieübersicht

Reading port notation and choosing the topology

Almost every selection question on switch ICs comes down to the port notation and whether the host controller needs to be on the network.

01

What 5+1 actually means

The first figure is external ports facing the outside world. The figure after the plus is a host uplink, a dedicated interface for the controller on the same board. A device listed as 5 has five external ports and no uplink, so the host cannot send or receive traffic through it. That distinction eliminates half the range.

02

When you need an uplink

If the product only has to move traffic between its own front panel ports, a device with external ports only is simpler and cheaper to lay out. If the host has to participate, for management, for remote access or because it originates data, you need an uplink and the host must provide the matching MII or RMII interface.

03

The supply rails catch people out

Most devices here need more than one rail: commonly 3.3 volts for the main supply and around 1.1 volts for the core, and some gigabit parts run the core alone. Missing a rail, or sequencing them wrongly, prevents the device starting. Confirm the rails and sequence before the power tree is committed.

FAQ

Ethernet switch IC questions engineers ask

Answers cover port notation, uplinks, supply rails and fibre support.

What is the 8+1 configuration for?

Eight external ports on the panel plus one MII uplink so the host controller can join the network, typically for management, remote access or host-originated traffic. It is the configuration for a mid-size managed switch where port density and host access are both required.

Which temperature grade is listed?

The listed part carries the NC suffix, covering 0 to 70 degrees. If your product needs an industrial range, tell us the required temperature and our engineers will confirm what is currently available, rather than assuming a grade exists because other series offer one.

How does it compare with JL5110?

Both provide eight external ports with an MII uplink in a QFN88 package at 10 by 10 millimetres. JL5110 has two uplinks rather than one, which allows a host connection and a cascade to another switch at the same time. Choose on whether you need that second link.

What should I plan for in the layout?

Eight copper ports each need magnetics and a controlled impedance pair to the connector, plus the MII uplink routing to the host. Decide the panel arrangement and the device placement early, then verify link stability and emissions on a prototype board.

How do I request samples or a quote?

With a complete part number, send the part number, quantity, delivery region and the date you need it. If you are still selecting, send the external port count, the host interface and the operating temperature range you require.

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