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主要特征
应用/用途
Parametric specs for Audio/Video Routing (Unbuffered)
Functions | Crosspoint |
Configuration | 3 x 3-to-2 |
Interface | 3-Wire Serial |
RON (Ω) (max) | 35 |
ILEAK(OFF) (nA) (max) | 10 |
RFLAT(ON) (Ω) (max) | 5 |
tON (ns) (max) | 400 |
Package/Pins | SSOP/36 |
Budgetary Price (See Notes) | 6.37 |
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Technical Docs
数据资料 | 串行控制、三组3x2音频/视频交叉点开关 | Jun 01, 1999 | |
应用笔记 | 选择合适的CMOS模拟开关 |
参量
Parametric specs for Audio/Video Routing (Unbuffered)
Functions | Crosspoint |
Configuration | 3 x 3-to-2 |
Interface | 3-Wire Serial |
RON (Ω) (max) | 35 |
ILEAK(OFF) (nA) (max) | 10 |
RFLAT(ON) (Ω) (max) | 5 |
tON (ns) (max) | 400 |
Package/Pins | SSOP/36 |
Budgetary Price (See Notes) | 6.37 |
主要特征
- 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
应用/用途
- 高端音频系统
- PC多媒体板
- 安全系统
- 机顶盒
- 视频会议系统
描述
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.
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.
Technical Docs
数据资料 | 串行控制、三组3x2音频/视频交叉点开关 | Jun 01, 1999 | |
应用笔记 | 选择合适的CMOS模拟开关 |