MC34017A FREESCALE | Alldatasheet
Document overview
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Technical content
Features
Complete Telephone Bell Replacement Circuit with Minimum External Components On-Chip Diode Bridge and Transient Protection Direct Drive for Piezoelectric Transducers Push Pull Output Stage for Greater Output Power Capability Base Frequency Options 34017A-1: 1.0 kHz 34017A-2: 2.0 kHz 34017A-3: 500 Hz Input Impedance Signature Meets Bell and EIA Standards Rejects Rotary Dial Transient Figure 1. 34017A Simplified Application Diagram
ORDERING INFORMATION
Range (TA) Package MC34017AD/DR2 -20°C to 60°C
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C 15 K 160 K 2.2 mF3.0 V 5.0 mF25 V+ 6.8 K 1.0 mF Piezo Sound Element 34017A-1: C=1000 pF 34017A-2: C=500 pF 34017A-3: C=2000 pF This device contains 97 active transistors and 79 gates
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Figure 2. 34017A Simplified Internal Block Diagram
Figure 3. 34017A Terminal Connections Table 1. 34017A Terminal Definitions telephone line energizes the ringer through this bridge.
5 RS The input of the threshold comparator to which diode bridge current is mirrored and
4 RI The positive supply terminal for the oscillator, frequency divider, and output buffer
2, 3 RO1, RO2 The tone ringer output terminals through which the sound element is driven.
7 RG The negative terminal of the diode bridge and the negative supply terminal of the tone
6 RC The oscillator terminal for the external resistor and capacitor which control the tone
ringer frequencies (R2, C2).
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Table 2. Maximum Ratings All voltages are with respect to RG, Terminal 7, unless otherwise noted. ESD voltage data is available upon request.
Table 3. Static Electrical Characteristics Typical values noted reflect the approximate parameter mean at TA = 25°C under nominal conditions unless otherwise noted.
Analog Integrated Circuit Device Data
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STATIC ELECTRICAL CHARACTERISTICS APPLICATION CIRCUIT PERFORMANCE Refer to Typical Application. Characteristic Typ Unit Output Tone Frequencies 34017A-1 34017A-2 34017A-3 Warble Frequencies 12.5 Hz Output Voltage (VI ≥ 60 VRMS, 20 Hz) 37 V PP Output Duty Cycle 50 % Ringing Start Input Voltage (20 Hz) 36 V RMS Ringing Stop Input Voltage (20 Hz) 21 V RMS Maximum AC Input Voltage (≤ 68 Hz) 150 V RMS Impedance When Ringing VI = 40 VRMS, 15 Hz VI = 130 VRMS, 23 Hz >16 kΩ Impedance When Not Ringing VI = 10 VRMS, 24 Hz VI = 2.5 VRMS, 24 Hz VI = 10 VRMS, 5.0 Hz VI = 3.0 VRMS, 200 to 3200 Hz > 1.0 > 200 kΩ MΩ kΩ kΩ Maximum Transient Input Voltage (T ≤ 2.0 ms) 1500 V Ringer Equivalence Class A Class B 0.5 0.9
Figure 4. Oscillator Period (1/fO) versus Oscillator R2 C2 limits current from line transients. R2 Oscillator Resistor Range: 150 to 300 kΩ. provides dialer transient rejection.
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Figure 5. Test One
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Figure 8. Test Four Figure 9. Test Five
Figure 10. Test Six
Analog Integrated Circuit Device Data
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For the most current package revision, visit www.freescale.com and perform a keyword search using the 98A42420B listed below. D SUFFIX 8-LEAD SOIC 98A42420B ISSUE N
Analog Integrated Circuit Device Data Freescale Semiconductor 13 34017A PACKAGING PACKAGING DIMENSIONS D SUFFIX 8-LEAD SOIC 98A42420B ISSUE N
Analog Integrated Circuit Device Data
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For the most current package revision, visit www.freescale.com and perform a keyword search using the 98A42564B listed below. D SUFFIX 8-LEAD SOIC 98A42564B ISSUE U
Analog Integrated Circuit Device Data Freescale Semiconductor 15 34017A
REVISION HISTORY
REVISION DATE DESCRIPTION OF CHANGES 3.0 3/2006 Implemented Revision History page Converted to Freescale format
Rev 3.0 Information in this document is provided solely to enable system and software implementers to use Freescale Semiconductor products. There are no express or implied copyright licenses granted hereunder to design or fabricate any integrated circuits or integrated circuits based on the information in this document. Freescale Semiconductor reserves the right to make changes without further notice to any products herein. Freescale Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Freescale Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. Typical parameters that may be provided in Freescale Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including Typicals, must be validated for each customer application by customers technical experts. Freescale Semiconductor does not convey any license under its patent rights nor the rights of others. Freescale Semiconductor products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Freescale Semiconductor product could create a situation where personal injury or death may occur. Should Buyer purchase or use Freescale Semiconductor products for any such unintended or unauthorized application, Buyer shall indemnify and hold Freescale Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Freescale Semiconductor was negligent regarding the design or manufacture of the part. Freescale and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc., 2006. All rights reserved. How to Reach Us: Home Page: www.freescale.com E-mail: support@freescale.com USA/Europe or Locations Not Listed: Freescale Semiconductor Technical Information Center, CH370 1300 N. Alma School Road Chandler, Arizona 85224 +1-800-521-6274 or +1-480-768-2130 support@freescale.com Europe, Middle East, and Africa: Freescale Halbleiter Deutschland GmbH Technical Information Center Schatzbogen 7
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