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MAX4571, MAX4572, MAX4573, MAX4574
Serially Controlled, Clickless Audio/Video Switches


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Description
FULL DATA SHEET (PDF, 328kB)
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The MAX4571–MAX4574 serial-interface controlled switches are ideal for multimedia applications. Each device features 35Ω max on-resistance, -90dB audio off-isolation at 20kHz, -60dB video off-isolation at 1.0MHz, and "clickless" mode operation for audio applications.

The MAX4571/MAX4573 contain eleven SPST switches, while the MAX4572/MAX4574 contain two SPST switches and six SPDT switches. The MAX4571/MAX4572 feature a 2-wire, I2C-compatible serial interface. The MAX4573/MAX4574 feature a 3-wire, SPI™/QSPI™/MICROWIRE™-compatible serial interface. All four parts are available in 28-pin QSOP, SSOP, and wide SO packages and operate over the commercial and extended temperature ranges.

Key Features   Applications/Uses
  • Selectable Soft Switching Mode for "Clickless" Audio Operation
  • 35Ω max On-Resistance
  • -90dB Audio Off-Isolation at 20kHz
  • -50dB Video Off-Isolation at 10MHz
  • -90dB Audio Crosstalk at 20kHz
  • -52dB Video Crosstalk at 10MHz
  • Serial Interface
    • 2-Wire, Fast-Mode, I²C-Compatible (MAX4571/72)
    • 3-Wire, SPI/QSPI/MICROWIRE-Compatible (MAX4573/74)
  • Single-Supply Operation from +2.7V to +5.25V

 
  • Audio Systems
  • PC Multimedia Boards
  • Set-Top Boxes
  • Video Conferencing Systems

    Key Specifications:   Audio/Video Routing (Unbuffered)
    Part Number Functions Configuration RON (max) (Ω) Interface Max. OFF Leakage Current (nA) tON (max) (nS) Off Isolation @ Frequency (dB) Crosstalk @ Frequency (dB) Supply Voltage (V) Price**
    MAX4571 
    Switch
    11 x SPST NO 35 2-Wire
    Serial
    0.2 8,000 -50@10MHz
    -90@20kHz
    -52@10MHz
    -90@20kHz
    2.7 to 5.25 $3.23 @ 1k
    MAX4572  2 x SPST + 6 x SPDT 2-Wire
    Serial
    $3.23 @ 1k
    MAX4573  11 x SPST NO 3-Wire
    Serial
    $2.99 @ 1k
    MAX4574  2 x SPST + 6 x SPDT 3-Wire
    Serial
    $3.23 @ 1k
    See All Audio/Video Routing (Unbuffered) (27)
    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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    Document Ref.: 19-1404; Rev 1; 1999-04-01
    This page last modified: 2007-07-20



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