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MAX4549
PRODUCTIONSerially Controlled, Triple 3x2 Audio/Video Crosspoint Switches
- Part Models
- 2
- 1ku List Price
- Starting From $7.84
Overview
- 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
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.
Applications
- High-End Audio Systems
- PC Multimedia Boards
- Security Systems
- Set-Top Boxes
- Video Conferencing Systems
Documentation
Data Sheet 1
Design Note 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX4549EAX+ | 36-SSOP_W-7.62_MM | ||
| MAX4549EAX+T | 36-SSOP_W-7.62_MM |
This is the most up-to-date revision of the Data Sheet.
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