The MX465 CTCSS Encoder/Decoder is a low voltage, CMOS device that meets TIA/EIA-603 Standards.
The MX465 will encode and decode the tones 159.8Hz, 183.5Hz, 189.9Hz, 196.6Hz, 199.5Hz, 206.5Hz, 229.1Hz, and 254.1Hz in addition to the 39 standard CTCSS tones, for a total of 47 CTCSS tones + Notone. With the incorporation of the on-chip TX and RX speech filter, the MX465 enhances voice/tone multiplexing by attenuating TX and RX speech 36dB at frequencies below 250Hz while passing signals > 300Hz with only 1dB of ripple. This not only minimizes CTCSS talk-off in the TX mode but also improves Hum and Noise performance in the RX mode.

FEATUREs
● Meets TIA/EIA-603 Standards
● 47 CTCSS Tones + Notone
● TX/RX Speech Filters
● Improved Sinad
● Serial or Parallel Programming
● Easy µP Interface
● Scanning on any Channel
● Standard 4MHz Xtal
(See MX165C for 1MHz)

APPLICATIONs
● Low Voltage 3.3V to 5.0V
● Mobile Radio Channel Sharing
● Scan Trunking
● Wireless Intercom Traffic Control
● Hookswitch Supervision
● Repeater Control