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MAX4928A, MAX4928B
DisplayPort/PCIe Passive Switches
The MAX4928A/MAX4928B Route Signals Between a GMCH and Either a PCIe 2.0 Socket or DisplayPort Connector
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Status
Active: In Production.
Description
The MAX4928A/MAX4928B high-speed passive switches route PCI Express® (PCIe) data and/or DisplayPort™ signals between two possible destinations in desktop or laptop PCs. The MAX4928A is intended to be used with the ATX form factor desktop PCs, while the MAX4928B is expected to be used in the BTX form factor.
The MAX4928A/MAX4928B are hex double-pole/double-throw (6 x DPDT) switches. The MAX4928A/MAX4928B feature a single digital control input (SEL) to switch signal paths and a latch input (LE) that holds the switches in a given state.
The MAX4928A/MAX4928B are fully specified to operate from a single +3.3V (typ) power supply. The MAX4928A/MAX4928B are available in an industry standard 5mm x 11mm, 56-pin TQFN package. Both devices operate over the -40°C to +85°C extended temperature range.
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Data Sheet
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Key Features
- Single +3.3V Power Supply Voltage
- Supports PCIe Gen I, Gen II, and DisplayPort
- Excellent Return Loss > 12dB at 2.5GHz
- Six Bidirectional Pairs of Switches
- All Switching in One Device
- Low 800µA (max) Supply Current
- Small 5mm x 11mm, 56-Pin TQFN Package
- Industry Standard Pinouts
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Applications/Uses
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Key Specifications:
| Switches and Multiplexers (Low Voltage) |
| Part Number |
Protocol |
Config. |
Channels |
VSUPPLY (Single)
(V) |
VSUPPLY (Single)
(V) |
VSIGNAL
(V) |
VSIGNAL
(V) |
Dynamic Range (max)
(V) |
RFLAT(ON) |
BW
(MHz) |
IL(OFF)
(nA) |
tON
(ns) |
tOFF
(ns) |
Budgetary Price |
| min |
max |
min |
max |
max |
typ |
max |
min |
max |
See Notes |
| MAX4928A |
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2:1 |
12 |
3 |
3.6 |
-0.1 |
1.8 |
1.9 |
0.3 |
10000 |
8 |
120 |
50 |
$3.48 @1k |
| MAX4928B |
$3.48 @1k |
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See All Switches and Multiplexers (Low Voltage) (186)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
Typical Operating Circuit
More Information
Didn't Find What You Need?
Information Index
Document Ref.: 19-4030
Rev 1;
2008-12-01
This page last modified: 2009-04-02
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