圣邦微电子

SGM2258 4.5Ω, 300MHz, Low-Power Full-Speed USB (12Mbps) Switch

GENERAL DESCRIPTION

The SGM2258 is a high-performance, dual, single-pole/double-throw (SPDT) CMOS analog switch designed for switching USB 1.1 signals. High bandwidth and low on-resistance make this switch able to pass both USB low and full-speed signal with minimum signal distortion.

The SGM2258 features guaranteed on-resistance matching (0.3Ω TYP) between switches and guaranteed on-resistance flatness over the signal range (2Ω TYP). This ensures excellent linearity and low distortion when switching signals.

The device is fabricated with sub-micron CMOS technology to achieve fast switching speeds and designed for break-before-make operation. The select inputis TTL-level compatible.

SGM2258 is available in Green TQFN-2.1×1.6-10L package. It operates over an ambient temperature range of -40 to +85.


PIN CONFIGURATIONS


FEATURES

• Operation Voltage: +1.8V to +5.5V 
• On-Resistance: 4.5Ω (TYP) at +4.5V 
• High Bandwidth: 300MHz 
• Switching Times: 
    tON 70ns 
    tOFF 20ns 
• High Off-Isolation: -51dB at 10MHz 
• Low Crosstalk: -67dB at 10MHz 
• Rail-to-Rail Operation 
• TTL/CMOS Compatible 
• Break-Before-Make Switching 
• Extended Industrial Temperature Range: 
    -40 to +85 
• Available in Green TQFN-2.1×1.6-10L Package

APPLICATIONS

Routes Signals for USB 1.1 
Portable Instrumentation 
Battery-Operated Equipment 
Computer Peripherals 
Cell Phones 
PDAs 
MP3s


ORDERING INFORMATION

Part Number Status Package Pins Pb-Free Temp Range
SGM2258YTQD10/TR Production TQFN-2.1×1.6-10L 10 Y -40℃ to +85℃ Samples

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