CMX673D4 CML Microcircuits, CMX673D4 Datasheet
CMX673D4
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CMX673D4 Summary of contents
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D/673/5 June 2001 Features Worldwide Tone Compatibility Single and Dual Tones Detected Wide Dynamic Signal Range Fast Response Time Low Power Operation 500µA at 3.0V 3.58MHz Xtal/Clock Oscillator 1.1 Brief Description The CMX673 is a general purpose call progress tone ...
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Section 1.0 Features and Applications 1.1 Brief Description 1.2 Block Diagram 1.3 Signal List .............................................................................................. 4 1.4 External Components 1.5 General Description 1.5.1 Overall Function Description..................................................... 6 1.5.1 Software Description .................................................................. 6 1.5.2 Glossary........................................................................................ 6 1.5.3 Block Diagram Description........................................................ 7 ...
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Block Diagram 2001 Consumer Microcircuits Limited Figure 1 Block Diagram 3 D/673/5 ...
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Signal List Package Pin Pin Pin No. No. No XTAL/CLOCK ...
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External Components Typical Values: C1 0.1µF C2 1µF X1 3.579545MHz (refer to Section 1.7.1) Note not required if the input is referenced to VREF. Figure 2 Recommended External Components 2001 Consumer Microcircuits Limited ± 20% ± 20% ...
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General Description 1.5.1 Overall Function Description The CMX673 Call Progress Tone Detector uses different tone detection methods from those commonly found with other products. Many traditional devices from other suppliers use a bandpass filter followed by an energy detector. ...
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Block Diagram Description Amplifier The input signal is amplified by a self-biased inverting amplifier. The dc bias of this input is internally set at ½V DD. Signal Analyser The frequency range, quality and consistency of the input signal is ...
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Application Notes 1.6.1 General On power-up, it will take 80ms to initialise the internal state, this delay should be accounted for before the DETECT output is valid. XTAL/CLOCK 1 X1 XTALN 2 CMX673P1 ENABLE 3 DETECT 4 Figure 3 ...
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Performance Specification 1.7.1 Electrical Performance Absolute Maximum Ratings Exceeding these maximum ratings can result in damage to the device. Supply ( Voltage on any pin Current into or out of V ...
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Operating Characteristics For the following conditions unless otherwise specified: Xtal Frequency = 3.579545MHz, S/N = 16dB, Noise Bandwidth = 5kHz 3.0V to 5.0V, Tamb = -40°C to +85°C. 0dB = 775mVrms Parameters I (ENABLE = ‘1’) ...
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Electrical Performance (continued) For the following conditions unless otherwise specified: Xtal Frequency = 3.579545MHz, V Signal Timings (ref. Figures 3, 4 and 5) t Burst Length Ignored l t Burst Length Detected L t Call Progress Tone Gap Length GI ...
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Packaging Figure 5 P1 Mechanical Outline: Order as part no. CMX673P1 Figure 6 E3 Mechanical Outline: Order as part no. CMX673E3 2001 Consumer Microcircuits Limited 12 D/673/5 ...
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... Call Progress Tone Detector Figure 7 D4 Mechanical Outline: Order as part no. CMX673D4 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. No IPR or circuit patent licences are implied ...
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... In the process of creating a more global image, the three standard product semiconductor companies of CML Microsystems Plc (Consumer Microcircuits Limited (UK), MX-COM, Inc (USA) and CML Microcircuits (Singapore) Pte Ltd) have undergone name changes and, whilst maintaining their separate new names (CML Microcircuits (UK) Ltd, CML Microcircuits (USA) Inc and CML Microcircuits (Singapore) Pte Ltd), now operate under the single title circuits ...