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12kHz Datasheets Context Search

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1997 - TLC274

Abstract: 3.579545MHZ c14 c13 FX631 detector circuit using OP-AMP 12KHZ
Text: CML Semiconductor Products Téléphone à carte SPM Detector - A dual ( 12kHz and 18kHz) tone , Detector microcircuits can be used, with additional external filter components, to detect both the 12kHz , SPM Detectors 12kHz 12kHz Filter Circuit Op-Amps A1 and A2 FX631 Low-Power SPM Detector System Set to 12kHz SPM Signal Composite Signal Voice/SPM/Security 18kHz Filter Circuit , .1 Basic Filter and FX631 Configuration The Circuit The telephone signal will consist of voice, 12kHz


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PDF 12kHz 18kHz) FX631 18kHz 12kHz TLC274 3.579545MHZ c14 c13 detector circuit using OP-AMP
2000 - STATES10

Abstract: CMX641A CMX641AD2 CMX641AP4 FX641 MX641
Text: transmit frequency at the TONE OP pin. When high (logic `1'), the Tx tone at the TONE OP pin is 12kHz. , Features Applications · Two ( 12kHz /16kHz) SPM Detectors · SPM for Pair-Gain Systems · Selectable 12kHz /16kHz ASK Generator · Payphone Security Applications · Selectable Tone Follower , either 12kHz or 16kHz telephone call charge frequencies. The detection sensitivity, frequency and , independently controllable sensitivity, bandwidth and system frequency ( 12kHz or 16kHz). There is also a 12kHz


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PDF CMX641A D/641A/2 12kHz/16kHz) 12kHz/16kHz FX/MX641 STATES10 CMX641A CMX641AD2 CMX641AP4 FX641 MX641
1997 - crystal 3.579545MHZ datasheet

Abstract: MX651 MX651DW MX651P
Text: SPM signal on the line. A valid signal sends the "DETECT 12kHz" pin to logic low. 4.2.4 Sample and , cause a false decode at the "DETECT 12kHz" pin. 5.2.2 18kHz Channel The 18kHz tone detector response , Diagrams 12kHz TONE BURSTS "DETECT 12kHz" PIN RESPONSE DELAY DERESPONSE DELAY Figure 3 , data Tx up to 166bps Rx up to 62bps · 12kHz Subscriber Pulse Metering Detector · Meets European 12kHz SPM Frequency Specifications · Payphone Applications · Card Operated Telephone Installations ·


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PDF MX651 18kHz 166bps 62bps 12kHz 12kHz MX651P crystal 3.579545MHZ datasheet MX651 MX651DW MX651P
1997 - Not Available

Abstract: No abstract text available
Text: signal sends the "DETECT 12kHz" pin to logic low. 4.2.4 Sample and Hold (18kHz Channel) This samples the , valid decode, e.g. 42ms - 45ms of 5708Hz at 50mV could cause a false decode at the "DETECT 12kHz" pin , 40 40 50 50 8 8 ms ms ms ms Min Max Unit 12kHz TONE BURSTS "DETECT 12kHz" PIN RESPONSE DELAY , 166bps Rx up to 62bps · 12kHz Subscriber Pulse Metering Detector Telephone Subscriber Pulse Metering & Anti Fraud Tone Processor PRELIMINARY INFORMATION Applications · Meets European 12kHz SPM


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PDF MX651 18kHz 166bps 62bps 12kHz 12kHz
2002 - Not Available

Abstract: No abstract text available
Text: OP pin. When high (logic ‘1’), the Tx tone at the TONE OP pin is 12kHz. When low (logic â , Features Applications • Two ( 12kHz /16kHz) SPM Detectors • SPM for Pair-Gain Systems • Selectable 12kHz /16kHz ASK Generator • Payphone Security Applications • Selectable Tone , the presence on a telephone line of either 12kHz or 16kHz telephone call charge frequencies. The , system frequency ( 12kHz or 16kHz). There is also a 12kHz /16kHz transmission tone which can be keyed on


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PDF CMX641A D641A/5 12kHz/16kHz) 12kHz/16kHz FX/MX641
2002 - Not Available

Abstract: No abstract text available
Text: OP pin. When high (logic ‘1’), the Tx tone at the TONE OP pin is 12kHz. When low (logic â , Features Applications • Two ( 12kHz /16kHz) SPM Detectors • SPM for Pair-Gain Systems • Selectable 12kHz /16kHz ASK Generator • Payphone Security Applications • Selectable Tone , the presence on a telephone line of either 12kHz or 16kHz telephone call charge frequencies. The , system frequency ( 12kHz or 16kHz). There is also a 12kHz /16kHz transmission tone which can be keyed on


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PDF CMX641A D641A/5 12kHz/16kHz) 12kHz/16kHz FX/MX641
2002 - CMX641A

Abstract: CMX641AD2 FX641 MX641
Text: TONE OP pin is 12kHz. When low (logic `0'), the Tx tone is 16kHz. TONE OP 23 (Fixed , Features Applications · Two ( 12kHz /16kHz) SPM Detectors · SPM for Pair-Gain Systems · Selectable 12kHz /16kHz ASK Generator · Payphone Security Applications · Selectable Tone Follower , either 12kHz or 16kHz telephone call charge frequencies. The detection sensitivity, frequency and , independently controllable sensitivity, bandwidth and system frequency ( 12kHz or 16kHz). There is also a 12kHz


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PDF CMX641A D641A/5 12kHz/16kHz) 12kHz/16kHz FX/MX641 CMX641A CMX641AD2 FX641 MX641
1182h

Abstract: marking S98 FX651 FX651D4 D6512 capacitor j u47
Text: valid SPM signal on the line. A valid signal sends the DETECT 12kHz" pin to logic low. Sample and Hold , , e.g. 42ms - 45ms of 5708Hz at 80mV could cause a false decode at the "DETECT 12kHz" pin. 18kHz , on next page) 12kHz TONE BURSTS "DETECT 12kHz" PIN RESPONSE DELAY DERESPONSE DELAY (a) SPM , Integrated Telecoms Functions: . 12kHz SPM Detector • Half Duplex 18kHz Modem Compact 16-pin Small , Low Power (3.3V) Requirement Component Adjustable Input Sensitivity Meets European 12kHz SPM


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PDF FX651 12kHz 18kHz 16-pin D/651/2 655kHz 18MHz 12lcHz FX651 1182h marking S98 FX651D4 D6512 capacitor j u47
978H

Abstract: No abstract text available
Text: absence of a valid SPM signal on the line. A valid signal sends the "DETECT 12kHz" pin to logic low , false decode at the "DETECT 12kHz" pin. 18kHz Channel Input frequencies in the ranges: 52.511 kHz - , Timings (See also Table 1 on next page) 12kHz TONE BURSTS "DETECT 12kHz" PIN DERESPONSE DELAY , Septem ber 1997 Provisional Inform ation Two Integrated Telecoms Functions: · 12kHz SPM Detector · , Installations Low Power (3.3V) Requirement Component Adjustable Input Sensitivity Meets European 12kHz SPM


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PDF FX651 D/651/4 12kHz 18kHz 16-pin FX651 978H
2002 - CMX641A

Abstract: CMX641AD2 FX641 MX641 CMX641
Text: TONE OP pin is 12kHz. When low (logic `0'), the Tx tone is 16kHz. TONE OP 23 (Fixed , Features Applications · Two ( 12kHz /16kHz) SPM Detectors · SPM for Pair-Gain Systems · Selectable 12kHz /16kHz ASK Generator · Payphone Security Applications · Selectable Tone Follower , either 12kHz or 16kHz telephone call charge frequencies. The detection sensitivity, frequency and , independently controllable sensitivity, bandwidth and system frequency ( 12kHz or 16kHz). There is also a 12kHz


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PDF CMX641A D641A/5 12kHz/16kHz) 12kHz/16kHz FX/MX641 CMX641A CMX641AD2 FX641 MX641 CMX641
2001 - CMX661

Abstract: CMX661D4 CMX661P3
Text: Applications · Two ( 12kHz /16kHz) SPM Detectors · Pair-Gain Systems · Standard 3.579545MHz , either 12kHz or 16kHz telephone call charge frequencies. The detection frequency and bandwidth are , 15 SYSTEM SELECT I/P Selects the system frequency. High (logic `1') = 12kHz ; Low (logic , detect 12kHz by default. 16 16 VDD POWER The positive supply rail. Critical levels and , tone bandpass/audio reject filters automatically centred on the system frequency ( 12kHz or 16kHz


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PDF CMX661 D/661/2 12kHz/16kHz) 579545MHz CMX661 12kHz 16kHz CMX661D4 CMX661P3
1997 - 1182h

Abstract: FX651 FX651D4
Text: "DETECT 12kHz" pin to logic low. Sample and Hold (18kHz Channel) This samples the input signal at , decode, e.g. 42ms - 45ms of 5708Hz at 50mV could cause a false decode at the "DETECT 12kHz" pin. 18kHz , ) Requirement · · 12kHz SPM Detector Half Duplex 18kHz Modem · Component Adjustable Input Sensitivity · Compact 16-pin Small Outline (SOIC) Package · Meets European 12kHz SPM Frequency , 1.1 Brief Description The FX651 integrated circuit combines 12kHz Subscriber Private Metering (SPM


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PDF FX651 D/651/4 12kHz 18kHz 16-pin FX651 18kHz 1182h FX651D4
1997 - 1182h

Abstract: FX651 FX651D4 sample and hold circuit
Text: "DETECT 12kHz" pin to logic low. Sample and Hold (18kHz Channel) This samples the input signal at , decode, e.g. 42ms - 45ms of 5708Hz at 50mV could cause a false decode at the "DETECT 12kHz" pin. 18kHz , ) Requirement · · 12kHz SPM Detector Half Duplex 18kHz Modem · Component Adjustable Input Sensitivity · Compact 16-pin Small Outline (SOIC) Package · Meets European 12kHz SPM Frequency , 1.1 Brief Description The FX651 integrated circuit combines 12kHz Subscriber Private Metering (SPM


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PDF FX651 D/651/4 12kHz 18kHz 16-pin FX651 18kHz 1182h FX651D4 sample and hold circuit
1997 - 13kHz

Abstract: dual tone decoder
Text: SPM signal on the line. A valid signal sends the "DETECT 12kHz" pin to logic low. 4.2.4 Sample and , cause a false decode at the "DETECT 12kHz" pin. 5.2.2 18kHz Channel The 18kHz tone detector response , Diagrams 12kHz TONE BURSTS "DETECT 12kHz" PIN RESPONSE DELAY DERESPONSE DELAY Figure 3 , data Tx up to 166bps Rx up to 62bps · 12kHz Subscriber Pulse Metering Detector · Meets European 12kHz SPM Frequency Specifications · Payphone Applications · Card Operated Telephone Installations ·


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PDF MX651 18kHz 166bps 62bps 12kHz 12kHz 13kHz dual tone decoder
2002 - CMX661

Abstract: CMX661D4 CMX661P3
Text: /661/3 July 2002 Provisional Information Features Applications · Two ( 12kHz /16kHz) SPM , chip ­ to indicate the presence on a telephone line of either 12kHz or 16kHz telephone call charge , the system frequency. High (logic `1') = 12kHz ; Low (logic `0') = 16kHz. This signal has an internal pullup resistor, so if left unconnected the CMX661 will detect 12kHz by default. 16 16 VDD , system frequency ( 12kHz or 16kHz) being detected. Their gain is constant so the internal device


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PDF CMX661 D/661/3 12kHz/16kHz) 579545MHz CMX661 12kHz 16kHz CMX661D4 CMX661P3
2001 - PAIRGAIN

Abstract: CMX631AD4 IC PRESET tone control CMX631A CMX631AD5 CMX631AP3 CMX641A CMX641AD2 CMX641AP4 CMX661
Text: employing CML's family of 12kHz and 16kHz SPM ICs CML's current family of SPM ICs offers a versatile and , 's SPM IC products have the ability to accurately detect 12kHz or 16kHz call-charge tones to most , Follow' and `Packet Mode' outputs Pin selectable to 12kHz and 16kHz systems D4, D5 and P3 packages , MUST NOT DECODE 12kHz or 16kHz `System Select' VEL DE LE DECO MUST -20 775mVr ms , 3-Line Serial Interface `System Select'/ `Tx Tone Select' ( 12kHz or 16kHz) ASK Tone


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PDF 12kHz 16kHz CMX641A CMX661 uk/products/telecom/cmx631A uk/products/telecom/cmx641A uk/products/telecom/cmx661 CMX631AD4 CMX631AD5 CMX631AP3 PAIRGAIN CMX631AD4 IC PRESET tone control CMX631A CMX631AD5 CMX631AP3 CMX641AD2 CMX641AP4 CMX661
2001 - CMX641A

Abstract: CMX641AD2 CMX641AP4 FX641 MX641
Text: at the TONE OP pin is 12kHz. When low (logic `0'), the Tx tone is 16kHz. O/P Operates in Enhanced , ADVANCE INFORMATION Features Applications · Two ( 12kHz /16kHz) SPM Detectors · SPM for Pair-Gain Systems · Selectable 12kHz /16kHz ASK Generator · Payphone Security Applications · , - CH1 CHANNEL 1 SPM DETECTOR 12kHz / 16kHz ASK GENERATOR CHANNEL 2 SPM DETECTOR SPM , either 12kHz or 16kHz telephone call charge frequencies. The detection sensitivity, frequency and


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PDF CMX641A 12kHz/16kHz) 12kHz/16kHz FX/MX641 CMX641A 24-pin CMX641AD2 CMX641AP4 CMX641AD2 CMX641AP4 FX641 MX641
1999 - P3271

Abstract: CTR21 12KHZ
Text: PRODUCT DATA SHEET P3271 HIGH ATTENUATION 12kHz SIGNAL FILTER Features Applications , attenuation at 12kHz Suitable for 600 and complex impedances DESCRIPTION P3271 is intended to provide very high stop-band attenuation of 12kHz signals where greater performance is required than that provided by conventional billing tone filters. A typical application is where 12kHz signals are locally , 12kHz signal in one direction, without loading the line at 12kHz , and thus enabling the 12kHz signal to


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PDF P3271 12kHz 12kHz P3271 12kHz, CTR21
2001 - Not Available

Abstract: No abstract text available
Text: Two ( 12kHz /16kHz) SPM Detectors Standard 3.579545MHz Xtal Selectable Bandwidth Limits Excellent , to indicate the presence on a telephone line of either 12kHz or 16kHz telephone call charge , set the 'Will Decode' bandwidth of the CMX661. Selects the system frequency. High (logic `1') = 12kHz , CMX661 will detect 12kHz by default. The positive supply rail. Critical levels and voltages within the , bandpass/audio reject filters automatically centred on the system frequency ( 12kHz or 16kHz) being detected


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PDF CMX661 D/661/1 12kHz/16kHz) 579545MHz CMX661 12kHz 16kHz
2001 - CMX641A

Abstract: CMX641AD2 CMX641AP4 FX641 MX641 1624-K
Text: at the TONE OP pin is 12kHz. When low (logic `0'), the Tx tone is 16kHz. I/P This pin selects the , ADVANCE INFORMATION Features Applications · Two ( 12kHz /16kHz) SPM Detectors · SPM for Pair-Gain Systems · Selectable 12kHz /16kHz ASK Generator · Payphone Security Applications · , - CH1 CHANNEL 1 SPM DETECTOR 12kHz / 16kHz ASK GENERATOR CHANNEL 2 SPM DETECTOR SPM , either 12kHz or 16kHz telephone call charge frequencies. The detection sensitivity, frequency and


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PDF CMX641A 12kHz/16kHz) 12kHz/16kHz FX/MX641 CMX641A 24-pin CMX641AD2 CMX641AP4 CMX641AD2 CMX641AP4 FX641 MX641 1624-K
Not Available

Abstract: No abstract text available
Text: ER LOGIC SYSTEM ( 12kHz'16kHz ) SIGNAL IN (-) ▼▼ ▼ 12kHz /16kHz 32! IT , €¢ • • • Detects 12kHz and 16kHz SPM Frequencies Low Power (3.0 VoltM <1.0mA) Operation IN , both 12kHz or 16kHz telephone call-charge frequencies on a telephone line. Deriving its input , 's national ‘Must/Must-Not Decode’ specifications via an on-chip input amplifier. The 12kHz and 16kHzf , clock-pulse input. The MX631, which demonstrates high 12kHz and 16kHz performance in the presence of both


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PDF mx63i 12kHz 16kHz MX631DW 16-Pin MX631P 16kHz) 12kHz/16kHz
2001 - Not Available

Abstract: No abstract text available
Text: `1'), the Tx tone at the TONE OP pin is 12kHz. When low (logic `0'), the Tx tone is 16kHz. TX TONE , · · · · · · Two ( 12kHz /16kHz) SPM Detectors Selectable 12kHz /16kHz ASK Generator Selectable Tone , indicate the presence on a telephone line of either 12kHz or 16kHz telephone call charge frequencies. The , ( 12kHz or 16kHz). There is also a 12kHz /16kHz transmission tone which can be keyed on and off directly by , components govern the input sensitivity; the SYSTEM SELECT pin selects 12kHz or 16kHz operation. When low


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PDF CMX641A D/641A/3 12kHz/16kHz) 12kHz/16kHz FX/MX641 CMX641A
2001 - 66CH1

Abstract: No abstract text available
Text: · · · Two ( 12kHz /16kHz) SPM Detectors Standard 3.579545MHz Xtal Selectable Bandwidth Limits , chip ­ to indicate the presence on a telephone line of either 12kHz or 16kHz telephone call charge , CMX661. Selects the system frequency. High (logic `1') = 12kHz ; Low (logic `0') = 16kHz. This signal has an internal pullup resistor, so if left unconnected the CMX661 will detect 12kHz by default. The , automatically centred on the system frequency ( 12kHz or 16kHz) being detected. Their gain is constant so the


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PDF CMX661 D/661/2 12kHz/16kHz) 579545MHz CMX661 12kHz 16kHz 66CH1
1997 - 16KHZ

Abstract: FX641 FX641D2 FX641P4
Text: ) Detector Publication D/641/4 February 2001 Provisional Issue Features Two ( 12kHz /16kHz) SPM Detectors on a Single Chip Selectable Tone Follower or Packet Mode Outputs Detects 12kHz and 16kHz , GENERATOR CLOCK DIVIDERS BUFFER VBIAS INTERNAL CLOCKS VSS XTAL 12kHz /16kHz SYSTEM Ch , 12kHz /16kHz SYSTEM SERIAL DATA SERIAL INPUT LOGIC 12kHz /16kHz SYSTEM LEVEL/ SYSTEM , presence, on a telephone line, of either 12kHz or 16kHz telephone call-charge frequencies. Under


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PDF FX641 D/641/4 12kHz/16kHz) 12kHz 16kHz 12kHz/16kHz FX641 FX641D2 24-pin FX641P4
2001 - CMX661D4

Abstract: CMX661 CMX661P3
Text: Information Features Applications · Two ( 12kHz /16kHz) SPM Detectors · Pair-Gain Systems · , ) Detector ­ two detectors on a single chip ­ to indicate the presence on a telephone line of either 12kHz , `1') = 12kHz ; Low (logic `0') = 16kHz. This signal has an internal pullup resistor, so if left unconnected the CMX661 will detect 12kHz by default. The positive supply rail. Critical levels and voltages , ( 12kHz or 16kHz) being detected. Their gain is constant so the internal device sensitivity is also


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PDF CMX661 12kHz/16kHz) 579545MHz CMX661 12kHz 16kHz CMX661D4 CMX661P3 CMX661D4 CMX661P3
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