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| CML Semiconductor Products PRODUCT INFORMATION FX365A Features Improved Audio and Noise Performance 39 Programmable Sub-Audio Tones + NOTONE Sub-Audio Frequency Range 67.0Hz to 250.3Hz Gain (dB) 0 -10 -20 -30 -40 -50 -60 -70 100 200 250.3 -33 CTCSS Encoder/Decoder Publication No. D/365A/F/2 Feb 1992 Advance Information Reduced Current Requirement in Rx Monitoring Mode Pin and Function Compatible with FX365 Microcircuits High Voiceband/CTCSS Isolation CTCSS Frequencies Voiceband Frequencies 300 400 500 600 700 800 900 1000 FX365A Voiceband Filter Response Frequency (Hz) Brief Description The FX365A is a half-duplex Processor controlled CTCSS Encoder and Decoder with integral voice-band filtering. This device which is pin and function compatible with standard FX365 microcircuits is also available in a 24pin plastic Small Outline (S.O.I.C.) [365A DW] SMD package. The FX365A demonstrates improved voiceband noise performance and requires less supply current in the Rx monitoring mode. The FX365A has the capability of encoding and decoding 39 separate sub-audio tones, 38 of which are detailed in the current FX365 Data Sheet, plus an additional tone of 69.3Hz. This Data Sheet, which details the differences between the FX365A and the FX365 microcircuits, should be used with the current FX365 Data Sheet. Programmable Sub-Audio Rx and Tx Frequencies (Hz) 67.0 88.5 114.8 151.4 203.5 69.3 91.5 118.8 156.7 210.7 71.9 94.8 123.0 162.2 218.1 74.4 97.4 127.3 167.9 225.7 77.0 100.0 131.8 173.8 233.6 79.7 103.5 136.5 179.9 241.8 82.5 107.2 141.3 186.2 250.3 85.4 110.9 146.2 192.8 NOTONE FX365A Tx and Rx Sub-Audio Frequencies 69.3Hz Tone Generation The additional sub-audio tone provided by the FX365A is 69.3Hz. With reference to the FX365 Data Sheet - Table 3, the programming information is as follows: Nominal Freq. (Hz) 69.3 D0 1 D1 0 D2 0 D3 1 D4 1 D5 1 Specification Exceeding the maximum rating can result in device damage. Operation of the device outside the operating limits is not implied. Supply voltage -0.3 to 7.0V Input voltage at any pin (ref VSS = 0V) -0.3 to (VDD + 0.3V) Sink/source current (supply pins) +/- 30mA (other pins) +/- 20mA Total device dissipation @ TAMB 25C 800mW Max. Derating 10mW/C Operating temperature range: FX365A J -40C to +85C (cerdip) FX365A DW/LG/LS -40C to +85C (plastic) Storage temperature range: FX365A J -55C to +125C (cerdip) FX365A DW/LG/LS -40C to +85C (plastic) Operating Limits All device characteristics are measured under the following conditions unless otherwise specified: VDD = 5.0V. TAMB = 25C. Xtal/Clock f0 = 1.0MHz. Audio level 0dB ref: = 300mV rms Composite Signal Content = 1.0kHz tone at 0dB, Noise at -12dB (gaussian white noise band-limited to 6.0kHz), Programmed CTCSS tone at -20dB. Characteristics Static Values Supply Voltage Supply Current See Note Min. 4.5 - - - Typ. 5.0 3.5 3.5 2.5 Max. 5.5 - - - 3000 0 - - 36.0 -54.0 40.0 2.0 950 - - 0.5 250 -48.0 - - - -48.0 Unit V mA mA mA Hz dB dB Hz dB dB dB k mVrms dB Absolute Maximum Ratings (Tx) (Rx) (Rx Monitor) 1 Audio Filter Passband Frequencies 300 Passband Gain at 1.0kHz - w.r.t. 1.0kHz -2.0 Stopband Frequencies - Attenuation 33.0 Output Noise (a.c. short circuit) 2 - SINAD 3 36.0 Tx Output Impedance - Tx Output Amplitude - Spurious Emissions - Notes 1 See FX365 Data Sheet Table 2. 2. Measured in a 30kHz bandwidth. 3. With an input level of 308mVrms at 1.0kHz, in a 30kHz bandwidth. A Ordering Information FX365A DW 24-pin surface mount S.O.I.C. 24-pin cerdip DIL 24-pin quad plastic encapsulated bent and cropped 24-lead plastic leaded chip carrier MIN 15.16 7.39 2.21 0.20 0.40 1.27 0.66 10.11 0.63 45 5 0.25 0.76 10.51 TYP MAX 15.60 7.59 2.67 ALTERNATIVE PIN LOCATION MARKING B J H FX365A J FX365A LG K PIN 1 N M L C F E G D FX365A LS DIMENSION A B C D E F G H J K L M N FX365A DW S.O.I.C. Package CML does not assume any responsibility for the use of any circuitry described. No circuit patent licences are implied and CML reserves the right at any time without notice to change the said circuitry. CONSUMER MICROCIRCUITS LIMITED 1 WHEATON ROAD WITHAM - ESSEX CM8 3TD - ENGLAND Telephone: (0376) 513833 Telex: 99382 CMICRO G Telefax (0376) 518247 (c) 1992 Consumer Microcircuits Limited |
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