MX465 Datasheet | MX-COM

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) Low Voltage 3.3V to 5.0V Applications Mobile Radio Channel Sharing Scan Trunking Wireless Inter Traffic Control Hookswitch Supervision Repeater Control TONE IN TONE IN FILTER + - f TONE CLKS CLKS TONE DECODE FILTER REFERENCE VOLTAGE - + LOAD/LATCH D5/SERIAL ENABLE 1 D4/SERIAL ENABLE 2 D3/SERIAL DATA IN D2/SERIAL CLOCK D1 D0 RX/TX PTL XTAL/CLK XTAL CLKS/XTAL DIGITAL INTERFACE AND CLOCK GENERATION CLKS/XTAL A0-A5 D0-D10 TONE DETECT RX TONE DETECT LOGIC TONE OUT FILTER TX TONE OUT TONE ROM 48 x 10 VDD VSS VBIAS TX AUDIO IN RX AUDIO IN DECODE PARATOR REF. DECODE PARATOR IN 300Hz AUDIO FILTER + - TX AUDIO OUT RX AUDIO OUT RX TONE DECODE 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 36d B at frequencies below 250Hz while passing signals > 300Hz with only 1d B of ripple. This not only minimizes CTCSS talk-off in the TX mode but also improves Hum and Noise performance in the RX mode. Available in the following package styles: 24-pin TSSOP (MX465TN), 24-pin SSOP (MX465DS), 24-pin SOIC (MX465DW), 24-pin PLCC (MX465LH), 24-pin PDIP (MX465P), and 24-pin CDIP (MX465J) the MX465 requires a single 3.3V to 5.0V supply and a 4MHz clock or crystal. ©1998 MX- , INC. .mx. Tel: 800 638 5577 336 744 5050 Fax: 336 744 5054 Doc. #20480143.008 4800 Bethania Station Road, winston-Salem, NC 27105-1201 USA All trademarks and service marks are held...