CMX631AD5 CML Microcircuits, CMX631AD5 Datasheet
CMX631AD5
Related parts for CMX631AD5
CMX631AD5 Summary of contents
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... Tone Follower Output and a Packet Mode Output. This system (12kHz/16kHz) selectable integrated circuit, requires a 2.7V to 5.5V power supply which may be line-powered, is available in the following packages: 24-pin SSOP (CMX631AD5), 16-pin SOIC (CMX631AD4), and 16-pin PDIP (CMX631AP3). Additional package styles may be available to meet specific design requirements ...
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Low Voltage SPM Detector Section Features and Applications .................................................................................................. 1 Brief Description .................................................................................................................. 1 1 Block Diagram ................................................................................................................... 3 2 Signal List .......................................................................................................................... 4 3 External Components ....................................................................................................... 5 4 General Description .......................................................................................................... 6 4.1 Tone Follower Mode .............................................................................................................. 6 ...
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Low Voltage SPM Detector 1 Block Diagram 1998 Consumer Microcircuits Limited Figure 1: Block Diagram 3 CMX631A D/631A/1 ...
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Low Voltage SPM Detector 2 Signal List Packages Signal D5 D4/P3 Name 1 1 Xtal/Clock 4 2 XtalN 5 3 Clock Out 6 4 Clock BIAS Signal ...
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Low Voltage SPM Detector 3 External Components Figure 2: Recommended External Components R1 Note 1 R FEEDBACK R2 Note 1 R IN(-) R3 Note 1 R IN(+) R4 Note 1 R BIAS Recommended External Component Notes: 1. When calculating input ...
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Low Voltage SPM Detector 4 General Description 4.1 Tone Follower Mode The Tone Follower Output produces a logic ‘0’ when a valid signal is detected. A logic ‘1’ signifies a NOTONE or bad decode. See Figure 3. 4.2 Packet Mode ...
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Low Voltage SPM Detector 4.3 Sensitivity Setting The CMX631A input sensitivity can be accurately adjusted and set to support many national 12kHz and 16kHz SPM specifications. 4.3.1 Input Gain Calculation The input amplifier, with external circuitry, is used to set ...
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Low Voltage SPM Detector Figure 4: Input Gain Calculation Graph for V -10 -15 -20 MUST DECODE LEVEL -25 MUST NOT DECODE LEVEL -30 -35 -40 -45 -50 -25 -20 -15 Figure 5: Input Gain Calculation Graph for V 1998 ...
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Low Voltage SPM Detector 4.3.2 Input Gain Components Refer to the gain components found in Table 2 and Figure 2. The user should calculate and select external components (R1/R2/C3 and R3/R4/C4) to provide amplifier gain within the limits obtained in ...
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Low Voltage SPM Detector 5.1.2 Aliasing Due to the sampling nature of switched-capacitor filters used in the CMX631A, high frequency noise or unwanted signals can alias into the passband, disrupting detection. External components must be chosen carefully to avoid alias ...
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Low Voltage SPM Detector 6 Performance Specification 6.1 Electrical Specifications 6.1.1 Absolute Maximum Ratings Exceeding the maximum rating can result in device damage. Parameter Supply Voltage ( Voltage on any pin Current into ...
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Low Voltage SPM Detector 6.1.3 Operating Characteristics All device characteristics are measured under the following conditions unless otherwise specified 3. AMB Audio Level 0dB (ref.) = 775mV ...
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Low Voltage SPM Detector Operating Characteristics Notes: 1. With adherence to Signal-to-Voice and Signal-to-Noise specifications. 2. With Input Amplifier gain set to unity gain. See Section 4.3 for description of sensitivity setting. 3. Common Mode SPM and balanced voice signal. ...
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... Low Voltage SPM Detector 6.2 Packages The CMX631A is available in the following packages. Additional package styles may be available to meet specific design requirements. Figure 8: 24-pin SSOP Mechanical Outline: order as part no. CMX631AD5 Figure 9: 16-pin SOIC Mechanical Outline: order as part no. CMX631AD4 1998 Consumer Microcircuits Limited 14 CMX631A ...
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Low Voltage SPM Detector Figure 10: 16-pin PDIP Mechanical Outline: order as part no. CMX631AP3 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 ...
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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 ...