FEATURES
Field Programmable Tone Encoder 40 CTCSS Frequencies Crystal-Controlled Frequency Stability Low Distortion Sinewave Output Few External Components Required CMOS Low Power Requirements CTCSS Encoder APPLICATIONS
Mobile Radio Base Stations & Repeater Stations Mobile Radios Hand-Held Radios Industrial Controls Intercom Systems Door-Entry Systems Xtal/Clock Clock Generator Xtal D0-D5 Binary Rate Multiplier Programmed Clocks TX Tone Sinewave Output Emitter Follower VDD TX Enable TX Tone Square Wave TX Tone Output Enable TX Enable These frequencies are 69.3, 97.4 and 206.5Hz. An on-chip inverter is provided to drive an external crystal circuit. Tone selection is achieved through six programming inputs and two control inputs (which allow either a logic “1” or “0” to enable the device). A low distortion sinewave is generated at the TX Tone Output when the MX315A is enabled. The emitter follower output stage can source 1mW directly into a 600 load (0dBm). The MX315A is available in the following package styles: 16-pin SOIC (MX315ADW), 14-pin PDIP (MX315AP) and 14-pin CDIP (MX315AJ).