MAX4549

Serially Controlled, Triple 3x2 Audio/Video Crosspoint Switches


Please check latest availability status for a specific part variant.

Description

The MAX4548/MAX4549 serial-interface, programmable, triple 3x2 audio/video crosspoint switches are ideal for multimedia applications. The devices include three crosspoint switch matrices, each containing three inputs and two outputs. To improve off-isolation, each switch matrix has a shunt input and each output is selectively programmable for clickless or regular-mode operation. A selectable set of internal resistive voltage dividers supplies DC bias for each output when using AC-coupled inputs. To improve crosstalk, the voltage dividers include four externally accessible bypass points.

The MAX4548/MAX4549 feature 35Ω max on-resistance, 7Ω on-resistance matching between channels, 5Ω on-resistance flatness, and 0.07% total harmonic distortion (THD). Additionally, they feature off-isolation of -85dB at 20kHz and -72dB at 10MHz, with crosstalk of -85dB at 20kHz and -55dB at 10MHz. The MAX4548 uses a 2-wire I²-compatible serial interface, while the MAX4549 uses a 3-wire SPI™/QSPI™/MICROWIRE™-compatible serial interface. These parts are available in 36-pin SSOP packages and are specified for the extended (-40°C to +85°C) operating range.
MAX4548, MAX4549: Pin Configuration MAX4548, MAX4549: Pin Configuration Enlarge+

Key Features

  • Selectable Soft-Switching Mode for "Clickless" Audio Operation
  • 22Ω Typical On-Resistance (+5V Supply)
  • 5Ω Typical On-Resistance Matching Between Channels
  • 2Ω Typical On-Resistance Flatness
  • Audio Performance
    • -85dB Off-Isolation at 20kHz
    • -85dB Crosstalk at 20kHz
    • 0.07% THD with 600Ω Load
  • Video Performance
    • -72dB Off-Isolation at 10MHz
    • -55dB Crosstalk at 10MHz
  • Serial Interface
    • 2-Wire I²C-Compatible (MAX4548)
    • 3-Wire SPI/QSPI/MICROWIRE-Compatible (MAX4549)
  • Single-Supply Operation from +2.7V to +5.5V

Applications/Uses

  • High-End Audio Systems
  • PC Multimedia Boards
  • Security Systems
  • Set-Top Boxes
  • Video Conferencing Systems
Part NumberFunctionsConfig.RON
(Ω)
InterfaceILEAK(OFF)
(nA)
tON
(ns)
Off Iso.
(dB)
Crosstalk
(dB)
VSUPPLY
(V)
Package/PinsBudgetary
Price
maxmaxmax@ Freq.@ Freq.See Notes
MAX4548 Crosspoint3 x 3-to-235
2-Wire
Serial
10400
-72@10MHz
-85@20kHz
-55@10MHz
-85@20kHz
2.7 to 5.5
SSOP/36
$5.93 @1k
MAX4549 
3-Wire
Serial
SSOP/36
$5.72 @1k
See All Audio/Video Routing (Unbuffered) (27)
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 and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Technical Documents

App Note 5299 Selecting the Right CMOS Analog Switch

Quality and Environmental Data

Request Reliability Report for: MAX4549 
Lead-Free Package Tin (Sn) Whisker Reports

CAD Symbols and Footprints

  • MAX4549EAX+
  • MAX4549EAX+T
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

    Quality Management System >
    Environmental Management System >

     
    Status:
    Package:
    Temperature:

    Related Resources