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High Frequency RF Switch

Art Mecina
Genius 16785 points
Other Parts Discussed in Thread: TS3DDR4000, TMUX136, TS5MP645

Hello Guys,

Good day!

Need your help guys on our customers need for a High Frequency RF Switch. Here are the details of the application

They need a high frequency (HF) switch to interrupt the Broad Reach bus signals (Automotive Ethernet Bus, Base100-T1 und Base1000-T1).
They want to be able to interrupt the signal line + data, or the signal line -data or both signal lines + data and -data.

The HF switch should have the following properties:
1. small loss attenuation up to min 600MHz
2. small Ron <5-6Ohm
3. small ON / OFF capacity
4. short ON / OFF time for fast switching to realize interruptions> = 1µs

BBR specification:
1. BBR HF signal level is 1.5Vpp with power until -26dBm / 0.01mW
1. Zo = 100Ohm Unshielded Twisted Pair (UTP)
2. differential signal < 1,5Vss
3. BW 166MHz Base 100-T1
4. BW 600MHz Base 1000-T1

Thanks in advance!

Art

  • 0
    TI__Prodigy 547 points

    Hi Art,

    TI currently doesn't characterize or market it's signal switches as "RF" switches. Typically, the term "RF" refers to a device that is typically between the ADC/DAC and the antenna and requires specific parameters to evaluated (e.g. Insertion Loss, Gain P1dB, Isolation, IP3, and/or Return Loss). Many RF products are developed on GaN, GaAs, InP, and SOI processes and can handle higher levels of input power depending on the process. TI’s signal switches are on a CMOS process and are meant for the digital or analog chain.

    We believe that the TMUX136 (BW: 6 GHz), TS5MP645 (2 GHz), and TS3DDR4000 (5.6 GHz) would work well for your application.

    Thanks,

    Jon

  • 0 in reply to Jon Alejandro
    TI__Genius 16785 points

    Thanks a lot Jon!

    Art