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Serially Controlled, Dual 4x2, Clickless Audio/Video Analog Crosspoint Switches

Product Details

Key Features

Parametric specs for Audio/Video Routing (Unbuffered)
Functions Crosspoint
Configuration 2 x 4-to-2
Interface 3-Wire
Serial
RON (Ω) (max) 80
ILEAK(OFF) (nA) (max) 10
RFLAT(ON) (Ω) (max) 5
tON (ns) (max) 900
Package/Pins SOIC (W)/28
SSOP/28
Budgetary
Price (See Notes)
3.43
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Simplified Block Diagram

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Parameters

Parametric specs for Audio/Video Routing (Unbuffered)
Functions Crosspoint
Configuration 2 x 4-to-2
Interface 3-Wire
Serial
RON (Ω) (max) 80
ILEAK(OFF) (nA) (max) 10
RFLAT(ON) (Ω) (max) 5
tON (ns) (max) 900
Package/Pins SOIC (W)/28
SSOP/28
Budgetary
Price (See Notes)
3.43

Key Features

  • Selectable Soft Switching Mode for Clickless Audio Operation
  • 43Ω Typical On-Resistance (±5V Supplies)
  • 5Ω Typical On-Resistance Matching Between Channels
  • 4Ω Typical On-Resistance Flatness
  • 0.014% Total Harmonic Distortion with 1kΩ Load
  • -110dB Off-Isolation at 20kHz
  • -78dB Off-Isolation at 4MHz
  • -95dB Crosstalk at 20kHz
  • -54dB Crosstalk at 4MHz
  • Serial Interface
    • 2-Wire, Fast-Mode, I²C-Compatible (MAX4550)
    • 3-Wire, SPI/QSPI/MICROWIRE-Compatible (MAX4570)
  • Four Auxiliary Outputs that Extend µP Ports
  • Single-Supply Operation: +2.7V to +5.5V
  • Dual-Supply Operation: ±2.7V to ±5.5V

Applications/Uses

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

Description

The MAX4550/MAX4570 serial-interface, programmable, dual 4x2 audio/video crosspoint switches are ideal for multimedia applications. Each device contains two identical crosspoint switch arrays, each with four inputs and two outputs. To improve off-isolation, use the additional crosspoint inputs SA and SB as shunts. Each output is selectively programmable for clickless or regular mode operation. A set of internal resistive voltage-dividers supplies DC bias for each output when using AC-coupled inputs. Additionally, four auxiliary outputs control additional circuitry via the MAX4550/MAX4570's 2-wire or 3-wire interface.

The MAX4550/MAX4570 feature 80Ω on-resistance, 10Ω on-resistance matching between channels, 5Ω on-resistance flatness, and 0.014% total harmonic distortion. Additionally, they feature off-isolation of at least -110dB in the audio frequency range and -78dB at 4MHz, with -95dB crosstalk in the audio frequency range and -54dB at 4MHz. The MAX4550 uses a 2-wire I²C-compatible serial interface, while the MAX4570 uses a 3-wire SPI™/QSPI™ or MICROWIRE™-compatible serial interface. These parts are available in 28-pin SSOP and wide SO packages and are tested over either the commercial (0°C to +70°C) or extended (-40°C to +85°C) operating temperature range.

Simplified Block Diagram

MAX4550, MAX4570: Pin Configuration MAX4550, MAX4570: Pin Configuration Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.