FX602 Consumer Microcircuits Limited, FX602 Datasheet
FX602
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FX602 Summary of contents
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... Brief Description The FX602 is a low power CMOS integrated circuit for the reception of the physical layer signals used in BT's Calling Line Identification Service (CLIP), Bellcore's Calling Identity Delivery system (CID), the Cable Communications Association's Caller Display Services (CDS), and similar evolving services. It also meets the requirements of emerging Caller Identity with Call Waiting services ...
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... Bandpass Filter ............................................................................ 10 1.5.4 Level Detector............................................................................... 10 1.5.5 FSK Demodulator ......................................................................... 11 1.5.6 FSK Data Retiming ....................................................................... 11 1.5.7 Tone Alert Detector ...................................................................... 12 1.5.8 Ring or Line Polarity Reversal Detector .................................... 13 1.5.9 Xtal Osc and Clock Dividers ....................................................... 15 1.6 Application Notes......................................................................................... 16 1.6.1 'On-Hook' Operation .................................................................... 16 1.6.2 'Off-Hook' Operation .................................................................... 17 1.7 Performance Specification .......................................................................... 26 1.7.1 Electrical Performance ................................................................ 26 1.7.2 Packaging ..................................................................................... 30 1998 Consumer Microcircuits Limited CONTENTS 2 FX602 Page D/602/7 ...
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... Calling Line Identifier 1.2 Block Diagram 1998 Consumer Microcircuits Limited Figure 1 Block Diagram 3 FX602 D/602/7 ...
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... I/P (S) A high level on this input selects 'Zero-Power' mode, a low level enables the Input Signal Amplifier, the Bandpass Filter and either the FSK or the Tone Alert circuits depending on the MODE input. 4 Description and a DD should be connected capacitor SS FX602 /2 D/602/7 ...
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... FSK Demodulator or re-timed 8-bit characters depending on the state of the RXCK input. See section 1.5.6 Power The positive supply rail. Levels and thresholds within the device are proportional to this voltage. Should be decoupled capacitor mounted close to the device pins. 5 FX602 Description D/602/7 ...
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... V 200k for V (See section 1.5.2) R10 160k R11 100k Resistors 1%, capacitors 20% unless otherwise stated. Figure 2 Recommended External Components for Typical Application 1998 Consumer Microcircuits Limited = 5.0V DD 20% 6 C1, C2 18pF C3 0.33 F C6, C7 680pF C8,C9 0 3.579545MHz 1N4004 FX602 D/602/7 ...
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... Calling Line Identifier 1.5 General Description 1.5.1 Mode Control Logic The FX602's operating mode and the source of the DET and IRQN outputs are determined by the logic levels applied to the MODE and ZP input pins; ZP MODE 0 0 Tone Alert Detect 0 1 FSK Receive 1 0 'Zero-Power' ...
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... FSK Receive or Tone Alert Detect mode has been selected. In Tone Alert Detect mode the output of the Level Detector block provides an input to the Tone Alert Signal Detector. 1998 Consumer Microcircuits Limited R8 3 3.5 4 Nominal 4.5 5 5.5 DD FX602 D/602/7 ...
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... On detecting that the IRQN output has gone low, the C should pulse the RXCK pin high 8 times. The high to low transition at the end of the first 7 of these pulses will be used by the FX602 to shift the next data bit from the shift register onto the RXD output. At the end of the eighth pulse the FSK Demodulator output will be reconnected to the RXD output pin. The IRQN output will be cleared the first time the RXCK input goes high. Thus to use the Data Retiming function, the RXCK input should be kept low until the IRQN output goes low ...
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... The FX602 DET output will be set high while a valid Tone Alert signal is detected. At the end of the Tone Alert signal the DET output will go low and the IRQN output will be pulled low until the FX602 is switched out of Tone Alert Detector mode. ...
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... These circuits are used to detect the Line Polarity Reversal and Ringing signals associated with the Calling Line Identification protocol. Figure 7 illustrates their use in a typical application. Figure 7 : Ring or Line Polarity Reversal operation 1998 Consumer Microcircuits Limited See section 1.7.1 for definitions of Tton and Ttoff Figure 6 : Tone Alert Detector operation 11 FX602 D/602/7 ...
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... The signal at point X will be further attenuated by the potential divider formed by R1 and R2 before being applied to the FX602 input the amplitude of the signal appearing greater than the input threshold (Vthi) of Schmitt trigger 'A' then the N transistor connected to RT will be turned on, pulling the voltage discharging the external capacitor C5 ...
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... Xtal Osc and Clock Dividers Frequency and timing accuracy of the FX602 is determined by a 3.579545MHz clock present at the XTAL pin. This may be generated by the on-chip oscillator inverter using the external components C1, C2 and X1 of Figure 2, or may be supplied from an external source to the XTAL input, in which case C1, C2 and X1 should not be fitted ...
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... Application Notes 1.6.1 'On-Hook' Operation Figures below illustrate the line signalling and FX602 I/O signals for typical 'On-Hook' (Calling Line ID) BT and Bellcore system use. The BT Tone Alert signal consists of simultaneous 2130Hz and 2750Hz tones. The 'Chan Seize' signal consists of a '1010..' FSK bit sequence in all cases. ...
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... This application note describes the use of the FX602 for accurate CAS detection, providing better CIDCW performance than other solutions. The FX602's <1µA ring detect supply current volt supply range, and 16 pin package also offer significant advantages in battery life and final product size. ...
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... The same microcontroller is easily used to observe and control the FX602 CIDCW transaction initiation detection process. This involves measuring the FX602 DET output pulse duration, controlling the muting of near end voice, watching for further DET output activity, and controlling whether the FX602 is in Dual Tone Alert or FSK Receive modes, as shown in Figure 9b below. ...
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... Calling Line Identifier CIDCW Transaction Initiation Detection Algorithm The following State Transition Diagram, (Figure 9c) and explanatory text provide a detailed description of the CIDCW detection procedure shown in Figure 9b. Figure 9c : FX602 Based CIDCW Transaction State Transition Diagram 1998 Consumer Microcircuits Limited 17 FX602 D/602/7 ...
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... Calling Line Identifier 1. INITIAL state This is the normal state when the CPE is off hook. The FX602 is in the Tone Alert Detect mode, the timer is reset and the FX602's DET output line is being monitored. If the FX602 DET output goes high start the timer, and go to the WAIT_T1 state. ...
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... Note that the 50ms monitoring period of the CONFIRM_QUIET state when added to the 0.5 to 10ms de- response time of the FX602 in Tone Alert Detect mode and the 0 to 5ms delay in switching to FSK mode results in a valid CAS detection occurring at between 50 and 65 ms after the end of the CAS, leaving at least 35ms for muting the local handset fully, testing for off-hook extensions and initiating the dtmf ACK transmission while still meeting the 100ms specified for CIDCW from end of the dual-tone burst to the start of the ACK ...
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... Notes: 1 When the FX602 is in Tone Alert Detect mode, the IRQN output will go low on the first high to low transition of the DET output and will remain low until the FX602 is switched to FSK or Zero Power mode. Accordingly the IRQN output should be ignored when looking for a CAS signal. ...
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... Calling Line Identifier Timing Diagrams Figures illustrate the CIDCW transaction initiation sequence for various cases. Figure 9d : Valid CIDCW Transaction Initiation Sequence 1998 Consumer Microcircuits Limited 21 FX602 D/602/7 ...
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... Calling Line Identifier Figure 9e : Invalid CIDCW Transaction Initiation Sequence Figure 9f : Invalid CIDCW Transaction Initiation Sequence 1998 Consumer Microcircuits Limited (DET Output high for less than time T3) (DET Output high for more than 65ms) 22 FX602 D/602/7 ...
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... Calling Line Identifier Figure 9g : Invalid CIDCW Transaction Initiation Sequence (DET Output goes high during 50ms 'quiet' period) 1998 Consumer Microcircuits Limited 23 FX602 D/602/7 ...
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... A Xtal frequency of 3.579545MHz ±0.1% is required for correct Tone Alert and FSK detection. 1998 Consumer Microcircuits Limited pins SS Notes 1 24 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 -40 +85 °C 3.575965 3.583125 MHz FX602 D/602/7 ...
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... Dual tone burst duration 1998 Consumer Microcircuits Limited = 3.3V to 5.5V at Tamb = - 40 to +85°C, DD 0.1% Notes Min. 1 70 0.56V DD 0.44V DD - 0.6 0 -40.0 -7 ±75 ± FX602 Typ. Max. Units 1.0 A 0.5 1.0 mA 1 0.4 V 1.0 µA 0.56V 0.6 0.44V V DD 2130 Hz 2750 Hz 40 msec 10 ...
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... Voltage gain XTAL Input 'High' pulse width 'Low' pulse width Notes not including any current drawn from the FX602 pins by external circuitry other X1, C1 and C2. 2. RD, MODE, RXCK inputs All conditions must be met to ensure detection. 4. For V = 5.0V with equal level tones and with the input signal amplifier external components DD as section 1 ...
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... Calling Line Identifier 4 3.5 3 2.5 Vin 2 1 Figure 10 : Schmitt Trigger typical input voltage thresholds vs 0.1 0.01 0.001 0.0001 -40 -30 Figure 11 : Typical 'Zero Power' I 1998 Consumer Microcircuits Limited Vthi 3 -20 - Temperature vs. Temperature ( Vtlo 4 5.0V) DD FX602 D/602/7 ...
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... Calling Line Identifier 1.7.2 Packaging Figure 12 : 16-pin SOIC (D4) Mechanical Outline: Order as part no. FX602D4 Figure 13 : 16-pin DIL (P3) Mechanical Outline: Order as part no. FX602P3 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 ...
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... CML Microcircuits Product Prefix Codes Until the latter part of 1996, the differentiator between products manufactured and sold from MXCOM, Inc. and Consumer Microcircuits Limited were denoted by the prefixes MX and FX respectively. These products use the same silicon etc. and today still carry the same prefixes. ...