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| M-985-01 Precise Call Progress and Special Information Tone Generator Features * * * * * * * * * * Precise detection of call progress tones Linear (analog) input Digital (CMOS compatible), tri-state outputs 22-pin DIP and 20-pin SOIC Single supply 3 to 5 volt (low power CMOS) Inexpensive 3.58 MHz crystal time base Wide dynamic range (30 dB) Lower power consumption (power-down mode) 425 Hz detection Special Information Tone (SIT) Detection Description The M-985-01 is an integrated circuit precise tone detector for call progress and special information tones (SIT), as defined by CCITT. The use of integrated circuit techniques allows the M-985-01 to pack the eight filters for call progress detection into a single 22-pin DIP or a 20-pin SOIC. A 3.58 MHz crystal-controlled time base guarantees accuracy and repeatability. The M-985-01 combines the call progress detection of the M-982-02 and the SIT detection of the M-984-02. It has an operating voltage range down to 3V. It has low power consumption under normal operating conditions. A power down (PD) feature is provided to further reduce power consumption when inactive. Ordering Information Part # M-985-01P M-985-01S M-985-01T Applications * Automatic dialers * Dialing modems * Traffic measurement equipment * Test equipment * Service evaluation * Billing systems Description 22-pin plastic DIP 20-pin plastic SOIC 20-pin plastic SOIC,Tape and Reel Pin Diagram Block Diagram DS-M985-01-R1 www.clare.com 1 M-985-01 Absolute Maximum Ratings Storage Temperature Operating Ambient Temperature VDD Input Voltage on SIGIN Input Voltages (except SIGIN) Lead Soldering Temperature Note: Exceeding these ratings may permanently damage the M-985-01. -40 to 150C -40 to 85C 7V VSS - 6.5 to VDD + 0.3V VSS - 0.3 to VDD + 0.3 V 260 C for 5 seconds Absolute Maximum Ratings are stress ratings. Stresses in excess of these ratings can cause permanent damage to the device. Functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this data sheet is not implied. Exposure of the device to the absolute maximum ratings for an extended period may degrade the device and effect its reliability. Specifications Parameter Operating Conditions Power VREF Signal Detection, all tones except SIT tones. VDD Power supply noise Current drain (IDD) VREF Impedance Frequency range Level: VDD = 5.0v Level: VDD = 3.0V Duration (tDD) Signal drop out bridging time (tBB) Level skew between adjacent inband signals High level to low level signal for detection of both (tIL) Time to output (tDO) Time from OUT n to STROBE (tDS) Signal Detection, Frequency Range 940, 1400, 1800 Level: VDD = 5.0V Hz Level: VDD = 3.0V Duration Signal drop out bridging time (tBB) Signal to noise ratio Signal Rejection, Frequency range all tones except Level: VDD = 5.0V SIT tones. Level: VDD = 3.0V Interval duration (tID) Time to end of output (tIO) Conditions 0.1 - 5 kHz in-band signal XRANGE = open XRANGE = VSS XRANGE = open XRANGE = VSS for detection of both Min 2.7 48% of VDD 3.25 -1 -30 (24.5 mV) -40 (7.8 mV) -33 (17.4 mV) -43 (5.5 mV) 200 Max 5.5 20 15 52% of VDD 8.25 +1 0 (775 mV) -10 (245 mV) -3 (549 mV) -13 (173.5 mV) 20 6 200 240 10 0 (775 mV) -10 (245 mv) -3 (549 mV) -13 (173.5 mV) 15 +6 -50 (2.5 mV) -60 (0.8 mv) -53 (1.7 mV) -65 (.55 mV) 200 Units V mV p-p mA V k % of fo dBm dBm dBm dBm ms ms dB s ms ms s dBm dBm dBm dBm ms ms dB % of f0 dBm dBm dBm dBm ms ms Notes 1 High = 0 dBm (775 mV) 1 Low = -30 dBm (24.5 mV) SIGIN -24 dBm SIGIN < -24 dBm XRANGE = open -30 (24.5 mV) XRANGE = VSS -40 (7.8 mV) XRANGE = open -33 (17.4 mV) XRANGE = VSS -43 (5.5 mV) 50 16 -6 XRANGE = open XRANGE = VSS XRANGE = open XRANGE = VSS 160 - 2 - 1 - 2 www.clare.com Rev. 1 M-985-01 Specifications (Continued) Parameter Signal Rejection, Frequency Range 950, 1400, 1800 Level: VDD = 5.0V Hz Level: VDD = 3.0V Duration OUT n, STROBE pins OUT n pins EN, OE, XRANGE, MODE, PD pins Pull-up and Pull-down currents Conditions XRANGE = open XRANGE = VSS XRANGE= open XRANGE= VSS ISINK = -1mA ISOURCE = 1mA VO=VDD, VSS VDD = 5V VDD = 2.7V VDD = 5V VDD = 2.7V VDD = 5V VDD = 2.7V PD = VDD f=500 Hz XOUT open XOUT open XOUT open PD hi to lo CL = 20 pF, ISINK = -1mA CL = 20 pF, ISOURCE = 1mA CL = 20 pF CL = 50 pF, RL = 100 k Min 50 VDD -0.5 VDD - 2.0 VDD - 0.5 12.5 4 2 12.5 12.5 4 12.5 -6.5 80 VDD-0.2 40 20 VDD - 0.2 40 Max -40 (7.8 mV) -50 (2.5 mV) -43 (5.5 mV) -53 (1.7 mV) ms 0.5 1 0.5 50 20 6 100 25 10 50 VDD 28 0.2 60 10 30 0.2 60 250 250 Units dBm dBm dBm dBm V V A V V V A A A A A A A V k kHz V V % pF M ms V V % ns ns Notes 2 - Outputs Inputs VOL VOH IOZ VIL VIH MODE = VSS /XRANGE = VSS MODE2 = VDD PD pin SIGIN pin Clock PD = VDD Pull-down current Voltage range Input impedance Input spectrum External clock VIL connected to XIN VIH pin Duty cycle XIN, XOUT with Capacitance crystal osc. active Internal resistance Power up (tPU) X358 pin VOL VOH Tri-state Operation Duty cycle tEN (High Z to Low Z) tDE (Low Z to High Z) Unless otherwise noted, VDD - VSS = 5V, Ta = 25C, PD at logical low state, and XRANGE at a logical high state. Power levels are in dBm referenced to 600 ohm. DC voltages are referenced to VSS. Notes: 1. Per tone. 2. See Table 4 for detection/rejection frequencies. Call Progress Tone Detection Call progress tones are audible tones sent from switching systems to calling parties to show the status of calls. Calling parties can identify the success of a call placed by what is heard after dialing. The type of tone used and its timing vary from system to system, and though intended for human ears these signals can provide valuable information for automated calling systems. The M-985-01 contains five signal detectors sensitive to the frequencies often used for these progress tones. Rev. 1 Electronic equipment monitoring the OUTn outputs of the M-985-01 can determine the nature of signals present by measuring their duty cycle. See Mechanical Dimensions for a diagram of a circuit that could be used to permit a microcomputer to directly monitor tones on the telephone line. Much of the character of the progress tones is in their duty cycle or cadence (sometimes referred to as interruption rate). This information, coupled with level and frequency indication from the M985-01, can be used to decide what progress tones have been encountered. 3 www.clare.com M-985-01 Pin Functions Function Active high tri-state output, per Truth Table. Active high tri-state output, per Truth Table. Active high tri-state output, per Truth Table Active high tri-state output, per Truth Table Active high tri-state output, indicates 425 Hz detection. Active high enabled, when low drives STROBE low. Active high input. When low tri-states OUT n pins. Analog signal input (internally capacitive coupled). Active high output, indicates valid OUT n or D425 Most positive power supply input pin. Internally generated mid-power supply voltage (output) Most negative power supply input pin. Buffered oscillator output (3.58 MHz). Crystal oscillator or digital clock input. Crystal oscillator output. Used only with a crystal. Use X358 when clock output signal is required. XRANGE Active low input. Adds 10 dB of gain to input stage. MODE Selects 400/620 Hz detector frequency, 400 Hz when connected to VSS, 620 Hz when open. PD Power down operation, logic high inhibits internal clock. Internal pulldown resistor. MODE2 Tie high (VDD) for normal operation. Tie low or leave open to emulate M-982 operation. Pin OUT 1 OUT 2 OUT 3 OUT 4 D425 EN OE SIGIN STROBE VDD VREF VSS X358 XIN XOUT For example, dial tones shown in absolute Maximum Ratings Table on page 3, are usually "on" continuously and last until the first dial digit is received by the switching system. Line Busy, on the other hand, is turned off and on at a rate of 1 Hz with a 50% duty cycle, or an interruption rate of 60 times per minute (60 IPM). The tones can be distinguished in this way. It should be noted that while such techniques will usually be effective, there are some circumstances in which the M-98501 cannot be accurately used. Examples include situations where ringback tone may be short or not even encountered. Ringback may be provided at ringing voltage frequency (20 or 30 Hz) with some harmonics and may not fall in the detect range, and speech or other strong noise may obscure tones making cadence measurement difficult. Standards exist and should be consulted for your particular application. In North America AT&Ts "Notes on the Network" or EIA's RS-464 PBX standard should be reviewed. In Europe tone plans may vary with locale, in which case the CEPT administration in each country must be consulted. Outside these areas, national PTT organizations can provide information on the systems within their borders. Truth Table Signal Present (fo) 350 Hz 400 Hz (Note 1) 425 Hz 440 Hz 480 Hz 620 Hz (Note 2) 950 Hz 1400 Hz 1800 Hz 350 & 440 Hz 350 & 480 Hz 350 & 620 Hz (Note 2) 440 & 480 Hz 440 & 620 Hz (Note 2) 480 & 620 Hz (Note 2) Invalid Tone Combination Other (no detect) Any Mode X 0 X X X 1 X X X X X 1/open X X X X X X OUT 1 1 0 X 1 0 1 0 1 0 1 0 1 0 1 0 1 0 0 OUT 2 0 1 X 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 OUT 3 0 0 X 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 OUT 4 0 0 X 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 D425 X X 1 X X X X X X X X X X X X X 0 0 Strobe 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 PD 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 OE 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 EN 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 X 4 www.clare.com Rev. 1 M-985-01 Truth Table (Continued) Signal Present (fo) Any Any Any Any Notes: 1. This output indicates 400 Hz detect when MODE is connected to VSS. 2. This output indicates 620 Hz detect when MODE is open or connected to VDD. Mode X X X X OUT 1 0 OUT 2 OUT 3 OUT 4 0 0 0 High Impedance High Impedance High Impedance D425 0 Strobe 0 X 0 X PD 0 0 0 1 OE 1 0 0 0 EN 0 1 0 X Detector Frequency Windows for SIT Tones Detector D950 D1400 D1800 Low Reject 835 1275 1656 Low Accept 885 1328 1722 High Accept 1016 1472 1854 High Reject 1070 1527 1924 Call Progress Tones Frequency (HZ) 1 2 350 440 400 Off 440 Off 440 480 440 620 480 Off 480 620 350 Off 620 Off 425 Off Use Dial Tone Special Alert Tone Audible Ring Pre-empt Bell High Tone Reorder (Bell Low) Special Special European SIT Timing Rev. 1 www.clare.com 5 M-985-01 Signal Timing (See Specifications) Tri-State Timing Power-Down Timing Typical Application 6 www.clare.com Rev. 1 M-985-01 MECHANICAL DIMENSIONS Tolerances (inches) Min A A1 b b2 C D E E1 e ec L Nom Max .210 .015 .014 .022 .045 .060 .065 .009 .015 1.065 1.085 1.120 .390 .415 .425 .330 .360 .390 .100 BSC 0 15 15 .115 .130 .160 Metric Approximation (mm) Min Nom Max 5.33 .38 .36 .56 1.1 1.5 1.7 .23 .38 27.1 27.6 28.4 9.9 10.5 10.8 8.4 9.1 9.9 2.54 BSC 0 15 2.9 3.3 4.1 A A1 b D E e H L Tolerances (mm) Min Max 2.35 2.65 .10 .30 .33 .51 12.60 13.00 7.4 7.6 1.27 BSC 10.00 10.65 .40 1.27 SAE approximation (inches) Min Max .0926 .1043 .0040 .0118 .013 .020 .4961 .5118 .2914 .2992 .050 BSC .394 .419 .016 .050 Dimensions mm (inches) Rev. 1 www.clare.com 7 Worldwide Sales Offices CLARE LOCATIONS Clare Headquarters 78 Cherry Hill Drive Beverly, MA 01915 Tel: 1-978-524-6700 Fax: 1-978-524-4900 Toll Free: 1-800-27-CLARE Clare Switch Division 4315 N. Earth City Expressway Earth City, MO 63045 Tel: 1-314-770-1832 Fax: 1-314-770-1812 Clare Micronix Division 145 Columbia Aliso Viejo, CA 92656-1490 Tel: 1-949-831-4622 Fax: 1-949-831-4628 EUROPE European Headquarters CP Clare nv Bampslaan 17 B-3500 Hasselt (Belgium) Tel: 32-11-300868 Fax: 32-11-300890 France Clare France Sales Lead Rep 99 route de Versailles 91160 Champlan France Tel: 33 1 69 79 93 50 Fax: 33 1 69 79 93 59 Germany Clare Germany Sales ActiveComp Electronic GmbH Mitterstrasse 12 85077 Manching Germany Tel: 49 8459 3214 10 Fax: 49 8459 3214 29 Italy C.L.A.R.E.s.a.s. Via C. Colombo 10/A I-20066 Melzo (Milano) Tel: 39-02-95737160 Fax: 39-02-95738829 Sweden Clare Sales Comptronic AB Box 167 S-16329 Spanga Tel: 46-862-10370 Fax: 46-862-10371 United Kingdom Clare UK Sales Marco Polo House Cook Way Bindon Road Taunton UK-Somerset TA2 6BG Tel: 44-1-823 352541 Fax: 44-1-823 352797 ASIA/PACIFIC Asian Headquarters Clare Room N1016, Chia-Hsin, Bldg II, 10F, No. 96, Sec. 2 Chung Shan North Road Taipei, Taiwan R.O.C. Tel: 886-2-2523-6368 Fax: 886-2-2523-6369 SALES OFFICES AMERICAS Americas Headquarters Clare 78 Cherry Hill Drive Beverly, MA 01915 Tel: 1-978-524-6700 Fax: 1-978-524-4900 Toll Free: 1-800-27-CLARE Eastern Region Clare 603 Apache Court Mahwah, NJ 07430 Tel: 1-201-236-0101 Fax: 1-201-236-8685 Toll Free: 1-800-27-CLARE Central Region Clare Canada Ltd. 3425 Harvester Road, Suite 202 Burlington, Ontario L7N 3N1 Tel: 1-905-333-9066 Fax: 1-905-333-1824 Western Region Clare 1852 West 11th Street, #348 Tracy, CA 95376 Tel: 1-209-832-4367 Fax: 1-209-832-4732 Toll Free: 1-800-27-CLARE Canada Clare Canada Ltd. 3425 Harvester Road, Suite 202 Burlington, Ontario L7N 3N1 Tel: 1-905-333-9066 Fax: 1-905-333-1824 http://www.clare.com Clare, Inc. makes no representations or warranties with respect to the accuracy or completeness of the contents of this publication and reserves the right to make changes to specifications and product descriptions at any time without notice. Neither circuit patent licenses nor indemnity are expressed or implied. Except as set forth in Clare's Standard Terms and Conditions of Sale, Clare, Inc. assumes no liability whatsoever, and disclaims any express or implied warranty, relating to its products including, but not limited to, the implied warranty of merchantability, fitness for a particular purpose, or infringement of any intellectual property right. The products described in this document are not designed, intended, authorized or warranted for use as components in systems intended for surgical implant into the body, or in other applications intended to support or sustain life, or where malfunction of Clare's product may result in direct physical harm, injury, or death to a person or severe property or environmental damage. Clare, Inc. reserves the right to discontinue or make changes to its products at any time without notice. Specification: DS-M985-01-R1 (c)Copyright 2001, Clare, Inc. All rights reserved. Printed in USA. 7/24/01 |
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