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DATA BULLETIN
MX651
Features
* Rapid 18kHz tone encoder-decoder can transfer NRZ data Tx up to 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 Frequency Specifications * Payphone Applications * Card Operated Telephone Installations * Component Adjustable Input Sensitivity * Low Power 3.3V/5.0V Operation
NRZ DATA
EXT CLKIN XTAL Clock Oscillator and Dividers XTAL RX/TX AMPOUT IN IN VBIAS VSS VDD Sample & Hold Sample & Hold
Digital Amplifier Modulator
Band Pass Filter
TXOUT
Filtering and Frequency Detection 12kHz Channel
DETECT 12kHz
Filtering and Frequency Detection 18kHz Channel
DETECT 18kHz
The MX651 is a low power integrated circuit which combines 12kHz Subscriber Pulse Metering (SPM) detection with 18kHz tone processing for anti-fraud purposes within a telephone system. Suitable for battery or line powered systems, the MX651 is protected from crosstalk and false decoding by employing high accuracy switched capacitor filters. By using simple logic or Processor control the MX651 will: * Decode 12kHz SPM pulses (in the presence of high level voice and 18kHz signaling) and provide a logic output. * Transmit an NRZ amplitude modulated 18kHz security tone to line. * Decode an incoming modulated 18kHz security tone (in the presence of high level voice and 12 kHz SPM tones) and provide a logic output. The MX651 is available in a 16-pin SOIC (MX651DW) and a 16-pin PDIP (MX651P) package.
(c) 1997 MX*COM Inc. www.mxcom.com Tele: 800 638-5577 910 744-5050 Fax: 910 744-5054 Doc. # 20480137.003 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA All trademarks and service marks are held by their respective companies.
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MX651 - PRELIMINARY INFORMATION
CONTENTS
Section ............................................................................................................................................... Page 1. Block Diagram .................................................................................................................................. 3 2. Signal List ......................................................................................................................................... 4 3. External Components ...................................................................................................................... 5 4. General Description ......................................................................................................................... 6
4.1 Overall Function ........................................................................................................................................ 6
4.1.1 SPM (12kHz) Detector .......................................................................................................................................6 4.1.2 Security Tone (18kHz) Detector (Rx Mode Only) ..............................................................................................6 4.1.3 Security Tone Transmission (Tx Mode Only).....................................................................................................6
4.2 Description of Blocks (Reference Figure 1) ............................................................................................ 6
4.2.1 Input Amplifier ....................................................................................................................................................6 4.2.2 Sample and Hold (12kHz Channel) ...................................................................................................................6 4.2.3 Filtering and Frequency Detection (12kHz Channel) .........................................................................................6 4.2.4 Sample and Hold (18kHz Channel) ...................................................................................................................6 4.2.5 Filtering and Frequency Detection (18kHz Channel) .........................................................................................6 4.2.6 Clock Oscillator and Dividers .............................................................................................................................7 4.2.7 (Gate ON-OFF) (Tx Only) ..................................................................................................................................7 4.2.8 Band Pass Filter (Tx Only).................................................................................................................................7
5. Application ....................................................................................................................................... 7
5.1 Device Sensitivity versus VDD - Input Amplifier Gain ................................................................................ 7 5.2 Alias Responses - False Decodes ............................................................................................................ 7
5.2.1 12kHz Channel ..................................................................................................................................................7 5.2.2 18kHz Channel ..................................................................................................................................................8
6. Performance Specifications............................................................................................................ 8
6.1 Electrical Performance .............................................................................................................................. 8 6.2 System Timing ......................................................................................................................................... 11
6.2.1 Timing Diagrams...............................................................................................................................................11
6.3 Packaging ................................................................................................................................................ 12
MX*COM, Inc. reserves the right to change specifications at any time and without notice.
(c) 1997 MX*COM Inc. www.mxcom.com Tele: 800 638-5577 910 744-5050 Fax: 910 744-5054 Doc. # 20480137.003 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA All trademarks and service marks are held by their respective companies.
1. Block Diagram
3.579545MHz Xtal XTAL NRZ DATA XTAL CLKIN
OSCILLATOR
CLOCK DIVIDERS
71.591kHz 357.955kHz 17.898kHz
357.955kHz
Gate TXOUT (18kHz ASK Signal)
Telephone SPM and Anti Fraud Tone Processor
Powersave Tx Circuitry 17.898kHz Powersave 18kHz Channel DIGITAL AMPLITUDE MODULATOR 17.898kHz Modulated on/off BAND PASS FILTER fc = 18kHz
RX/TX
R5 C5 VSS
17.898kHz
12kHz Channel
R2 LEVEL DETECTOR
3
C1
R1
AMPOUT
NEGIN
SAMPLE AND HOLD
HIGH PASS FILTER 1 fc = 5kHz
Enable
C2
R3
POSIN
ZERO CROSSING DETECTOR
FREQUENCY MEASUREMENT
DETECT 12kHz
Figure 1: Block Diagram
71.591kHz LEVEL DETECTOR SAMPLE AND HOLD HIGH PASS FILTER 2 fc = 16kHz ZERO CROSSING DETECTOR
R4
VBIAS
18kHz Channel
C3
VSS
VSS
Enable
VDD
C4
VDD
MX651 - PRELIMINARY INFORMATION
(c) 1997 MX*COM Inc. www.mxcom.com Tele: 800 638-5577 910 744-5050 Fax: 910 744-5054 Doc. # 20480137.003 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA All trademarks and service marks are held by their respective companies.
FREQUENCY MEASUREMENT
DETECT 18kHz
Telephone SPM and Anti Fraud Tone Processor
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MX651 - PRELIMINARY INFORMATION
2. Signal List
Pin No. 1 2 4 Signal XTAL XTAL CLKIN Type input output input Description Input to the on-chip oscillator inverter. Inverted output of the on-chip oscillator. A logic input which may be used when an external clock signal is available in place of a crystal. The external 3.579545MHz signal is applied to this pin and XTAL is tied to VDD. When not used, this pin should be tied to VDD. A logic input which controls the operating mode of the device. In Rx, the device detects the presence of 12kHz and 18kHz tones. In Tx, the18kHz detect function is disabled and 18kHz is transmitted from the TXOUT pin modulated ON -OFF by the NRZ Data pin. A logic input used in Tx mode to ASK modulate the TXOUT pin. A logic high corresponds to no tone and logic low corresponds to 18kHz. The Tx mode output. It is ASK modulated by the NRZ data input pin. It transmits 18kHz or no tone depending upon the state of the NRZ data input pin. This pin goes to a high impedance state when in Rx mode. Negative supply. A bias line for the internal circuitry, held at VDD/2 It also forms the analog ground for the input differential amplifier. This pin must be bypassed by a capacitor mounted close to the device pins (see Figure 1). Output of the input amplifier. External components are used in conjunction with the amplifier to couple the line signal into the device. Both inputs are available to allow a differential configuration because a two wire input is assumed. Inverting input to the input amplifier. Non-inverting input to the input amplifier. Logic output of the 18kHz channel. Logic 0 when a 18kHz tone (within specified frequency and amplitude limits) has been detected for a minimum length of time. Logic output of the 12kHz channel. Logic 0 when a 12kHz tone (within specified frequency and amplitude limits) has been detected for a minimum length of time. Positive Supply. Levels and voltages are dependent upon this supply. This pin should be bypassed to VSS by a capacitor (see Figure 1). No internal connection: leave open circuit.
5
RX / TX
input
6 7
NRZ DATA TXOUT
input output
8 9
VSS VBIAS
power output
10
AMPOUT
output
11 12 13
NEGIN POSIN DETECT 18kHz
input input output
14
DETECT 12kHz
output
16 3, 15
VDD N/C
power
(c) 1997 MX*COM Inc. www.mxcom.com Tele: 800 638-5577 910 744-5050 Fax: 910 744-5054 Doc. # 20480137.003 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA All trademarks and service marks are held by their respective companies.
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MX651 - PRELIMINARY INFORMATION
3. External Components
VDD XTAL XTAL N/C CLKIN RX/TX NRZ DATA TXOUT R5 C5 C3 VSS 1 2 3 4 5 6 7 8 16 15 14 13 VDD N/C DETECT12 DETECT18 POSIN NEGIN AMPOUT VBIAS R2 R4 R3 R1 C2 C1 C4
MX65112
11 10 9
R1, R3 R2, R4 C1, C2 C3, C4 R5 C5 XTAL
See Note 1 See Note 1 See Note 1
1.1M @ 3.3V 1.0M @ 5.0V 270k @ 3.3V 330k @ 5.0V 33pF @ 3.3V 68pF @ 5.0V 0.1F 51k 100pF
1% 1% 1% 1% 10% 10% 20% 1% 10%
See Note 2
3.579545MHz
Figure 2: Recommended External Components External Components Notes 1. The device sensitivity is proportional to the power supply (VDD) voltage. The input gain must compensate for this and also prevent input circuitry saturation. It is recommended that amplifier components (R1 to R4, C1 and C2) be used to set the gain between -10dB (if VDD is 5.0V) and -13dB (if VDD is 3.3V). 2. For best results, a crystal oscillator design should drive the clock inverter input with signal levels of at least 40% of VDD, peak-to-peak. Tuning fork type crystals generally cannot meet this requirement. To obtain crystal oscillator design assistance, consult your crystal manufacturer
(c) 1997 MX*COM Inc. www.mxcom.com Tele: 800 638-5577 910 744-5050 Fax: 910 744-5054 Doc. # 20480137.003 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA All trademarks and service marks are held by their respective companies.
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MX651 - PRELIMINARY INFORMATION
4. General Description
4.1 Overall Function
The MX651 is a dual channel tone detector for use in European, French, and other payphone systems where 12kHz SPM and 18kHz security tones are used. 4.1.1 SPM (12kHz) Detector The SPM detector channel responds to a low level (50mV) 12kHz tone in the presence of a large security tone (16kHz 20kHz) and speech. The device responds after a period of continuous valid tone and so recognizes a valid SPM toneburst (minimum transmission duration, 40 - 50ms). This function is permanently enabled. 4.1.2 Security Tone (18kHz) Detector (Rx Mode Only) This demodulates the 18kHz ASK signal in the presence of the SPM signaling. 4.1.3 Security Tone Transmission (Tx Mode Only) An 18kHz tone modulated ON - OFF by the NRZ data pin. A logic 0 gates the signal ON so that 18kHz is transmitted. A logic 1 gates the signal OFF so that no tone appears at the TXOUT pin.
4.2 Description of Blocks (Reference Figure 1)
4.2.1 Input Amplifier This Input Amplifier is connected as a differential amplifier and is used to couple the signal into the device. It also attenuates the combined speech, SPM tone and security tone to prevent its output saturating. The signal gain should be 10dB at 5.0V supply and -13dB at 3.3V. (See Figure 2 for recommended component values). 4.2.2 Sample and Hold (12kHz Channel) This samples the input signal at 17.898kHz and creates images of the incoming frequencies. The 12kHz SPM is translated to 5.898kHz and the security tone is translated to between 978Hz and 1182Hz. This simplifies the subsequent signal processing. 4.2.3 Filtering and Frequency Detection (12kHz Channel) The output of the sample and hold circuit is passed to filter HPF1. This is a switched capacitor high pass filter which amplifies the frequency shifted SPM tone (about 5.9kHz) but rejects the frequency shifted security tone (about 1kHz). The filter also rejects any speech signals present. The filter output is passed to the level detect and frequency measurement circuitry which determines the presence or absence of a valid SPM signal on the line. A valid signal sends the "DETECT 12kHz" pin to logic low. 4.2.4 Sample and Hold (18kHz Channel) This samples the input signal at 71.592kHz. It is synchronized with the following high pass filter, which is a switched capacitor circuit with the same sampling rate. The sample and hold circuit stores the value of the input waveform value between sampling instants so that it is a suitable input for the filter. Without the sample and hold circuit, speech or SPM tone components which are large compared with the security tone would interfere with the level discrimination at the filter output. 4.2.5 Filtering and Frequency Detection (18kHz Channel) The output of the sample and hold circuit is passed to filter HPF2. This is a switched capacitor high pass filter which amplifies the security tone (about 16.92kHz - 19.08kHz) but rejects the SPM tone. The filter output signal is passed to the level detect and frequency measurement circuitry which determines the presence or absence of a valid security tone on the line. A valid signal sends the "DETECT 18kHz" pin to logic 0.
(c) 1997 MX*COM Inc. www.mxcom.com Tele: 800 638-5577 910 744-5050 Fax: 910 744-5054 Doc. # 20480137.003 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA All trademarks and service marks are held by their respective companies.
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MX651 - PRELIMINARY INFORMATION
4.2.6 Clock Oscillator and Dividers These circuits generate the internal clocks by division of the oscillator reference frequency. The crystal is connected as shown in Figure 2 without any need for other external components. When a crystal is used, the CLKIN pin should be left open circuit. Alternatively, when a frequency of 3.579545MHz is externally available, the use of a crystal is unnecessary. The external frequency is applied to the CLKIN pin. In this case, the XTAL pin should be tied to V DD. In Tx, the dividers also generate a pulse train, frequency 18kHz, which is passed to the Tx circuitry (Gate ON - OFF and Band Pass Filter) for digital modulation and filtering. 4.2.7 (Gate ON-OFF) (Tx Only) This circuit is a digital block. It performs ON - OFF modulation of the 18kHz pulse train generated from the crystal frequency by the digital dividers. It is controlled by the NRZ DATA pin and is used to encode NRZ data packets as pulsed 18kHz (ASK data). The modulated digital signal is passed to the Tx filter for wave shaping. 4.2.8 Band Pass Filter (Tx Only) This is a 4th order band pass filter with center frequency 18kHz. It shapes the modulated digital pulse train from the previous block into a low distortion pulsed sinusoidal waveform. The resulting signal is the system acknowledgment security tone. It is transmitted by the subscriber equipment, via the telephone link, to the local exchange.
5. Application
5.1 Device Sensitivity versus VDD - Input Amplifier Gain
The device sensitivity is proportional to VDD because internal voltage references are derived from the power supply. Accordingly, input amplifier signal gain should be adjusted via external components. Figure 2 shows components recommended for 5.0V and 3.3V operation.
5.2 Alias Responses - False Decodes
The MX651 is designed to work in telephone systems where certain ranges of input frequencies are expected and other ranges are not. The 12kHz SPM channel works in the presence of speech and a tone in the range 16kHz - 20kHz. The security tone detector functions in the presence of an interfering tone in the range 11kHz - 13kHz. A significant tone at other frequencies may interfere with correct decoding of valid transmissions and should be avoided. A small range of input frequencies could cause false decoding when no valid tone has been received. This is because of the frequency shifting property of the SPM channel and the sampled data filters in both channels. The tone detectors in both the 12kHz and 18kHz channels will respond to `other than normal' tones. Accordingly, such tones should be avoided. 5.2.1 12kHz Channel The 12kHz tone detector response frequencies are described by the following two equations: sign f 12kHz plus = [(n x 17.898kHz) + 5.893kHz] - 5.893kHz] 0.185kHz 0.185kHz nominal nominal plus minus detect detect frequency frequency (kHz) (kHz) 5.893 N/A 23.791 12.005 41.689 29.903 ... ...
f 12kHz minus = [(n x 17.898kHz)
n 0 1 2 ...
(c) 1997 MX*COM Inc. www.mxcom.com Tele: 800 638-5577 910 744-5050 Fax: 910 744-5054 Doc. # 20480137.003 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA All trademarks and service marks are held by their respective companies.
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MX651 - PRELIMINARY INFORMATION
Note: A valid SPM input, in the range 11.82kHz - 12.18KHz, is met when; n = 1 and the nominal minus sign (-) detect frequency is calculated. The other inputs represent false decodes. The response time and level sensitivity for a false decode is the same as that for a valid decode, e.g. 42ms - 45ms of 5708Hz at 50mV could cause a false decode at the "DETECT 12kHz" pin. 5.2.2 18kHz Channel The 18kHz tone detector response frequencies are described by the following two equations: sign f 18kHz plus = [(n x 71.591kHz) + 18.0kHz] - 18.0kHz] 1.08kHz 1.08kHz nominal nominal plus minus detect detect frequency frequency (kHz) (kHz) 18 N/A 89.591 53.591 161.182 125.182 232.773 196.773 ... ...
f 18kHz minus = [(n x 71.591kHz)
n 0 1 2 3 ...
Note: A valid security tone input is met when, n = 0 and the nominal plus sign (+) detect frequency is calculated. The other inputs represent false decodes. The response time and level sensitivity for a false decode is the same as that for a valid decode, e.g. 5.8ms of 52.511kHz at 40mV could cause a false response at "DETECT18kHz" pin.
6. Performance Specifications
6.1 Electrical Performance
Absolute Maximum Ratings Exceeding these maximum ratings can result in damage to the device. Correct operation of the device outside these limits is not implied. General Supply (VDD - VSS) Voltage on any pin (wrt VSS) Current VDD VSS Any other pins DW / P Packages Total Allowable Power Dissipation at TAMB = 25C Derating above 25C Operating Temperature Storage Temperature -40 -55 800 13 85 125 mW mW/C above 25C C C -30 -30 -20 30 30 20 mA mA mA Min. -0.3 -0.3 Max. 7.0 VDD + 0.3 Units V V
(c) 1997 MX*COM Inc. www.mxcom.com Tele: 800 638-5577 910 744-5050 Fax: 910 744-5054 Doc. # 20480137.003 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA All trademarks and service marks are held by their respective companies.
Telephone SPM and Anti Fraud Tone Processor
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MX651 - PRELIMINARY INFORMATION
Operating Limits For the following conditions unless otherwise specified. Min. Supply (VDD - VSS) Operating Temperature Xtal Frequency Operating Characteristics For the following conditions unless otherwise specified: Xtal Frequency = 3.579545MHz, Noise and Distortion Measured in 50kHz Bandwidth VDD = 3.3V to 5.5V @ TAMB = 25C. Notes DC Parameters IDD IDD Logic 1 Input Level Logic 0 Input Level Logic 1 Output Level at IOH = -120A Logic 1 Output Level at IOL = 360A AC Parameters Tx Output Tx Output Impedance (Tx mode) Tx Output Impedance (Rx mode) Output Frequency Output Distortion Signal Level Signal Level Response/De-response Times Rise/Fall Times Rx Input Rx Input Impedance Rx Input Amp Voltage Gain 12kHz (SPM) Channel Performance With Interfering Speech & Security Tone Input Signal Level Decode Min Signal Level No Decode Max Signal Level Response Delay De-response Delay Detect Bandwidth Not Detect Frequencies (below 12kHz) Not Detect Frequencies (above 12kHz) 11 12 12 12 12 12, 13 12, 13 12 12 12 12.48 25 40 40 11.82 50 50 12.18 11.52 800 50 mV mV mV ms ms kHz kHz kHz 5 5, 6 5, 7 8 9 10 10.0 500 M V/V 3.0 2.0 3.4 2.2 4 4 300 17.82 1.0 500 18.18 2 3.7 2.4 100 5 2.5 k k kHz % VP-P VP-P s ms 1 2 1, 3 1, 3 1 1 4.6 0.4 3.5 1.5 2.5 1.0 4.0 2.0 mA mA V V V V Min. Typ. Max. Units 3.0 -40 3.579008 Max. 5.5 85 3.580082 Units V C MHz
(c) 1997 MX*COM Inc. www.mxcom.com Tele: 800 638-5577 910 744-5050 Fax: 910 744-5054 Doc. # 20480137.003 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA All trademarks and service marks are held by their respective companies.
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MX651 - PRELIMINARY INFORMATION
Notes 18kHz (Security Tone) Channel Performance With Interfering Speech & SPM Tone Input Signal Level Decode Min Signal Level No Decode Max Signal Level Response/De-response Times Detect Bandwidth Not Detect Frequencies (below 18kHz) Not Detect Frequencies (above 18kHz) Operating Characteristics Notes: 14 15 15 15 15 15, 16 15 15 15
Min.
Typ.
Max.
Units
1.2 40 10 8 16.92 19.75 19.08 16.25
V mV mV ms kHz kHz kHz
1. At VDD = 5.0V only, IDD specification does not include any current drawn from the device pins by external circuitry. 2. At VDD = 3.3V only, IDD specification does not include any current drawn from the device pins by external circuitry. 3. CLKIN input signal may be sinusoidal. 4. Small signal impedance. 5. At output of smoothing network. 6. VDD = 5.0V. 7. VDD = 3.3V. 8. The time between a logic 1 - 0 transition at NRZ data input and the tone amplitude at TXOUT reaching 10% of its full value or between a 0 - 1 transition at NRZ data input and the tone amplitude falling to 90% of its full value. 9. The time for the 18kHz tone amplitude at TXOUT to rise from 10% to 90% or to fall from 90% to 10% of its full value. 10. Input amplifier signal gain set to -10dB for VDD = 5.0V, -13dB for VDD = 3.3V. 11. Maximum 10% distortion for incoming SPM tone, not including interfering speech or security tone (16kHz - 20kHz). Minimum SNR 22dB for incoming SPM tone before the input capacitor. 12. Signal levels at the amplifier input, i.e. before the input capacitor. 12kHz channel performance specified in the presence of the following interfering signals: (a) A 1.2V continuous tone in the frequency range 16kHz - 20kHz (b) An ordinary speech signal containing frequencies in the range 300Hz - 3400Hz of maximum instantaneous amplitude 8.0VP-P 13. The device responds after 40-50ms of continuous valid tone and de-responds after: a 40-50ms period of no-tone, tones less than 25mV or an out of band tone. 14. Maximum 10% distortion for incoming security tone, not including interfering SPM tone (11kHz - 13kHz). Minimum 20dB SNR for incoming security tone. 15. Signal level specified at the amplifier input, i.e. before the input capacitor. Performance specified in the presence of an interfering 800mV continuous tone in the frequency range 11kHz - 13kHz. 16. The device responds after 8ms of continuous valid tone and de-responds after any of: an 8ms period of no-tone, tone of 10mV or less, or an out of band tone.
(c) 1997 MX*COM Inc. www.mxcom.com Tele: 800 638-5577 910 744-5050 Fax: 910 744-5054 Doc. # 20480137.003 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA All trademarks and service marks are held by their respective companies.
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MX651 - PRELIMINARY INFORMATION
6.2 System Timing
Notes Rx 12KHz 18KHz Tx Transmit 0 Time Transmit 1 Time Note: 1. Tx Transmit Times include both Response/De-response Times and Rise/Fall Times. 2. The Tx Transmit 0 and Transmit 1 Time must exceed 5.1ms. 6.2.1 Timing Diagrams Note 1, 2 Note 1, 2 5.1 5.1 ms ms Response Delay De-response Delay Response Time De-response Time 40 40 50 50 8 8 ms ms ms ms Min Max Unit
12kHz TONE BURSTS
"DETECT 12kHz" PIN
RESPONSE DELAY
DERESPONSE DELAY
Figure 3: SPM (12kHz) channel. Toneburst and tonegaps < the response and de-response delays are ignored
18kHz TONE BURSTS
"DETECT 18kHz" PIN
RESPONSE TIME
DERESPONSE TIME
Figure 4: Security tone (18kHz) channel. The response and de-response times are short to enable the device to recognize short ON-OFF bursts (20ms each)
(c) 1997 MX*COM Inc. www.mxcom.com Tele: 800 638-5577 910 744-5050 Fax: 910 744-5054 Doc. # 20480137.003 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA All trademarks and service marks are held by their respective companies.
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MX651 - PRELIMINARY INFORMATION
RX / TX PIN
NRZ DATA DON'T CARE TXOUT HIGH Z TRANSMIT 0 TIME TRANSMIT 1 TIME HIGH Z TRANSMIT 0 TIME DON'T CARE
Figure 5: Transmit Mode. TXOUT is modulated by the NRZ DATA pin. An 18kHz toneburst represents logic 0 and "no tone" represents logic 1. Data packets with symbol periods 6ms can be transmitted.
6.3 Packaging
Package Tolerances
A Z B E W L PIN 1 X Y C H J P K T
DIM. A B C E H J K L P T W X Y Z MIN. TYP. MAX.
0.395 (10.03) 0.413 (10.49) 0.286 (7.26) 0.299 (7.59) 0.093 (2.36) 0.105 (2.67) 0.390 (9.90) 0.419 (10.64) 0.003 (0.08) 0.020 (0.51) 0.013 (0.33) 0.020 (0.51) 0.041 (1.04) 0.016 (0.41) 0.050 (1.27) 0.050 (1.27) 0.009 (0.23) 0.0125 (0.32) 45 0 10 7 5 5
ALTERNATIVE PIN LOCATION MARKING
NOTE : All dimensions in inches (mm.) Angles are in degrees
Figure 6: SOIC Mechanical Outline: Order as part no. MX651DW
(c) 1997 MX*COM Inc. www.mxcom.com Tele: 800 638-5577 910 744-5050 Fax: 910 744-5054 Doc. # 20480137.003 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA All trademarks and service marks are held by their respective companies.
Telephone SPM and Anti Fraud Tone Processor
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MX651 - PRELIMINARY INFORMATION
A
Package Tolerances
DIM. A B C E E1 H J J1 K L P T Y MIN. TYP . MAX.
0.810 (20.57) 0.740 (18.80) 0.262 (6.63) 0.240 (6.10) 0.135 (3.43) 0.200 (5.06) 0.300 (7.62) 0.390 (9.91). 0.290 (7.37) 0.325 (8.26) 0.015 (0.38) 0.070 (1.77) 0.014 (0.35) 0.023 (0.58) 0.040 (1.02) 0.065 (1.65) 0.056 (1.42) 0.064 (1.63) 0.121 (3.07) 0.150 (3.81) 0.100 (2.54) 0.008 (0.20) 0.015 (0.38) 7
B
E1 Y
E
PIN 1
T
K H L J J1 P
C
NOTE : All dimensions in inches (mm.) Angles are in degrees
Figure 7: PDIP Mechanical Outline: Order as part no. MX651P
(c) 1997 MX*COM Inc. www.mxcom.com Tele: 800 638-5577 910 744-5050 Fax: 910 744-5054 Doc. # 20480137.003 4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA All trademarks and service marks are held by their respective companies.
CML Microcircuits
COMMUNICATION SEMICONDUCTORS
CML Product Data
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 CML Microcircuits. These companies are all 100% owned operating companies of the CML Microsystems Plc Group and these changes are purely changes of name and do not change any underlying legal entities and hence will have no effect on any agreements or contacts currently in force. 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. In the latter part of 1996, both companies adopted the common prefix: CMX. This notification is relevant product information to which it is attached. CML Microcircuits (USA) [formerly MX-COM, Inc.] Product Textual Marking On CML Microcircuits (USA) products, the `MX-COM' textual logo is being replaced by a `CML' textual logo.
Company contact information is as below:
CML Microcircuits (UK)Ltd
COMMUNICATION SEMICONDUCTORS
CML Microcircuits (USA) Inc.
COMMUNICATION SEMICONDUCTORS
CML Microcircuits (Singapore)PteLtd
COMMUNICATION SEMICONDUCTORS
Oval Park, Langford, Maldon, Essex, CM9 6WG, England Tel: +44 (0)1621 875500 Fax: +44 (0)1621 875600 uk.sales@cmlmicro.com www.cmlmicro.com
4800 Bethania Station Road, Winston-Salem, NC 27105, USA Tel: +1 336 744 5050, 0800 638 5577 Fax: +1 336 744 5054 us.sales@cmlmicro.com www.cmlmicro.com
No 2 Kallang Pudding Road, 09-05/ 06 Mactech Industrial Building, Singapore 349307 Tel: +65 7450426 Fax: +65 7452917 sg.sales@cmlmicro.com www.cmlmicro.com
D/CML (D)/2 May 2002

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Price & Availability of MX651

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