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Private-squelch CTCSS codec with speech scrambler integrated circuit - FX/MX465
The FX/MX465 is a 2.7 volt encoder/decoder microcircuit , with half-duplex predictive Continuous Tone Controlled Squelch System (CTCSS) The integral voice-band filtering pre-filters Tx audio and rejects CTCSS tone in receive. Under microprocessor...
Private-squelch CTCSS codec with speech scrambler integrated circuit - FX/MX465
The FX/MX465 is a 2.7 volt encoder/decoder microcircuit , with half-duplex predictive Continuous Tone Controlled Squelch System (CTCSS) The integral voice-band filtering pre-filters Tx audio and rejects CTCSS tone in receive. Under microprocessor control, FX/MX465 can encode/ decode any one of 47 sub-audio frequencies (+ Notone) from 67.0 to 254.1 Hz. Pin-selectable 8-bit parallel or serial format is used to load the device with tone frequencies and all functional commands.
A separate, Rx/Tx voice-audio path comes with a highpass (sub-audio reject) filter automatically placed in the relevant Rx or Tx voice line. The bandpass filter (with selected tone frequency) and period detector present in Rx sub-audio (CTCSS) path provides a logic level output (Rx Tone Detect) to indicate successful decoding. Rx "Press to Listen" (PTL) and Tx "Squelch-Tail Elimination" functions are available in both command loading modes.
A separate, Rx/Tx voice-audio path comes with a highpass (sub-audio reject) filter automatically placed in the relevant Rx or Tx voice line. The bandpass filter (with selected tone frequency) and period detector present in Rx sub-audio (CTCSS) path provides a logic level output (Rx Tone Detect) to indicate successful decoding. Rx "Press to Listen" (PTL) and Tx "Squelch-Tail Elimination" functions are available in both command loading modes.
Radio integrated circuit receiver - TDA7xxx, STA6x0 series, STA3005
ST has more than 60% of the market share for receiver chipsets for the major digital radio broadcast systems.
Our complete system level know-how, mixed signal CMOS and...
Our complete system level know-how, mixed signal CMOS and...
Radio integrated circuit receiver - TDA7xxx, STA6x0 series, STA3005
ST has more than 60% of the market share for receiver chipsets for the major digital radio broadcast systems.
Our complete system level know-how, mixed signal CMOS and BiCMOS technologies with RF capability and design expertise in silicon, combined with standard software libraries and personalized customization support, make ST the natural partner for these applications:
Highly integrated terrestrial and satellite tuners
Integrated multiple-channel and source decoders
Embedded analog-to-digital converters
Application processors and multi-standard audio decoders
Complete portfolio of digital and analog IP and microprocessor cores allowing system-on-chip design
Our complete system level know-how, mixed signal CMOS and BiCMOS technologies with RF capability and design expertise in silicon, combined with standard software libraries and personalized customization support, make ST the natural partner for these applications:
Highly integrated terrestrial and satellite tuners
Integrated multiple-channel and source decoders
Embedded analog-to-digital converters
Application processors and multi-standard audio decoders
Complete portfolio of digital and analog IP and microprocessor cores allowing system-on-chip design
Radio integrated circuit transceiver - 1 GHz
Wireless Control has become an indispensable item of everyday's life. Starting from routines like gate openers,...
Radio integrated circuit transceiver - 1 GHz
Wireless Control has become an indispensable item of everyday's life. Starting from routines like gate openers, window shutters and remote controls through metering and wireless fire-alarms to automotive applications like remote keyless entry and tire pressure monitoring systems, wireless control devices have established themselves as a cost-efficient and robust solution for a broad range of control applications.