FX643 Consumer Microcircuits Limited, FX643 Datasheet
FX643
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FX643 Summary of contents
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... The FX643 provides the key features needed for intelligent full-function Call Progress monitoring. In addition to detecting the full range of standard Call Progress tones, the FX643 adds single and dual tone decoding for better cross-system Call Progress monitoring. The FX643 also directly identifies the " ...
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... Call Progress Tone Detector Section 1.0 Features......................................................................................................1 1.1 Brief Description ........................................................................................1 1.2 Block Diagram............................................................................................3 1.3 Signal List ..................................................................................................4 1.4 External Components ................................................................................5 1.5 General Description ...................................................................................6 1.5.1 Overall Function Description .........................................................6 1.5.2 Glossary.......................................................................................6 1.5.3 Block Diagram Description............................................................7 1.5.4 Decode Output Truth Table ..........................................................8 1.6 Application Notes ......................................................................................8 1.6.1 General ........................................................................................8 1.7 Performance Specification ........................................................................9 1.7.1 Electrical Performance..................................................................9 1.7.2 Packaging ..................................................................................14 1996 Consumer Microcircuits Limited CONTENTS 2 FX643 Page D/643/4 ...
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... Call Progress Tone Detector 1.2 Block Diagram Note: XTALN for 16-pin SOIC (D4) package only. 1996 Consumer Microcircuits Limited Figure 1 Block Diagram 3 FX643 D/643/4 ...
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... When DETECT1 logic "0", this output goes to a logic "1" Non Call Progress signal is detected. V Power The positive supply rail. This pin should be DD decoupled Internal connection. Do not make any connection to these pins. 4 FX643 Description by a capacitor. SS D/643/4 ...
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... Call Progress Tone Detector 1.4 External Components Typical Values: C1 1nF ± 20% at 5V, 560pF ± 20% at 3.3V C2 0.1µF ± 20% (For details of clock frequency, refer to Section 1.7.1) C3, C4 33pF ± 20 ± 10% X1 3.579545MHz (Refer to Section 1.7.1) Figure 2 Recommended External Components 1996 Consumer Microcircuits Limited 5 FX643 D/643/4 ...
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... Progress tones. The detection algorithm requires that the tones have the characteristics typical of Call Progress Tones. Call Progress Low Band: The nominal range 340Hz to 490Hz. The FX643 will detect single or dual tones falling entirely within this range as Call Progress Low Band tones. ...
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... This block categorises the nature of the signal into various decoded output states and controls the two output pins. See the Decode Output Truth Table in section 1.5.4. Clock An external clock source connected to the XTAL/CLOCK input pin. Alternatively, the internal oscillator may be used with an external crystal if the 16-pin SOIC (D4) version of the FX643 is used. 1996 Consumer Microcircuits Limited 7 FX643 ...
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... Will detect single 600 and 620Hz tones, for example 0 Non Call Progress signal, e.g. Voice Activity Will detect a single tone lying outside the 0 Call Progress Band and within the Non Call Progress signal range 8 CONDITIONS No Signal for example for example D/643/4 FX643 ...
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... Correct operation of the device outside these limits is not implied. Supply ( Xtal Frequency 1996 Consumer Microcircuits Limited pins SS Notes 9 Min. Max. Units -0.3 7 -30 +30 mA -20 +20 mA Min. Max. Units 800 mW 13 mW/°C -55 +125 °C -40 +85 °C Min. Max. Units 3.0 5.5 V 3.57 3.59 MHz FX643 D/643/4 ...
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... ENABLE pin. 6. DETECT1, DETECT2 and DETECT3 pins. 1996 Consumer Microcircuits Limited Notes = 5.0V 3.3V 120µ Min. Typ. Max. 0.5 1.0 0.3 0.7 0.35 - 80% 20% 5.0 +5.0 10.0 90% 10% FX643 Units µ D/643/4 ...
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... Electrical Performance (continued) Figure 3 Timing Diagram: Call Progress Tone(s) Note 1: DETECT3 is "1" only when the Call Progress Signal Non Call Progress Signal single frequency tone. Figure 4 Timing Diagram: Non Call Progress Signal 1996 Consumer Microcircuits Limited 11 FX643 D/643/4 ...
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... Figure 5 Timing Diagram: Call Progress Tone(s) to Non Call Progress Signal Note 1: DETECT3 is "1" only when the Call Progress Signal Non Call Progress Signal single frequency tone. Figure 6 Timing Diagram: Special Information Tones 1996 Consumer Microcircuits Limited 12 FX643 D/643/4 ...
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... Timings also apply to Special Information Tone. 11. Special Information Tone Gap Length Ignored is 15ms maximum. 1996 Consumer Microcircuits Limited = 3.3V to 5.0V, Tamb = - 40°C to +85°C, S/N = 20dB. DD Notes 10 10 7,10, ms, No Signal is indicated for a minimum of 6ms. 13 FX643 Min. Typ. Max. Units 70 ms 145 145 ms 145 ...
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... Call Progress Tone Detector 1.7.2 Packaging Figure 7 P1 Mechanical Outline: Order as part no. FX643P1 Figure 8 D4 Mechanical Outline: Order as part no. FX643D4 Handling precautions: This product includes input protection, however, precautions should be taken to prevent device damage from electro-static discharge. CML does not assume any responsibility for the use of any circuitry described ...