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CMX808A CTCSS 'Type 2' Encoder/Decoder

CMX808   [IN PROGRESS]
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CMX808A CTCSS 'Type 2' Encoder/Decoder Features:
  • Fully CTCSS 'Type 2' Compatible
  • Up to 7 Tones in 'Active-Receive'
  • Single Tone Encode
  • Multi-tone (7) Decode with Selectable Rx Bandwidth
  • 48 Programmable Tones Available from 62.5Hz to 251Hz
  • Fast (140ms) Tone Decode
  • Toneset Cloning Capability
  • Voiceband Filtering Switchable to Rx and Tx Paths
  • Low Power Operation with Powersave
This device is a unique product for the designer of Family Radio transceivers. Offering leading-edge performance while also being highly cost effective.
The device is simple to interface to a host of μControllers via the serial programming interface.
A full range of 48 tones can be generated and detected by the device.
The decode time has been vastly improved from that offered by other solutions. Fast response and de-response gives the user of a Family Radio transceiver faster switching times and a reduction in the annoying squelch tail often found in CTCSS based systems.
The device has very low power consumption operating at a minimum of 3.0V.
Overview:
Technical
Description Min Typ Max
Operating Temperature -40 - +85 °C
Typical Supply Current at 3.0V Powersave - 1.5 - mA
  - 350 - μA
CTSS Rx and Tx Frequency Range   60 to 251   Hz
CTS Decoder Sensitivity - -26.0 - dB
CTS Decoder Response Time - 140 - ms
CTS Decoder De-response Time - 145 - ms
Audio Bandpass Filter Bandpass   350Hz to 3000 kHz  

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