MC34119 FREESCALE | Alldatasheet
Document overview
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- PDF pages: 17
Technical content
Features
- Wide Operating Supply Voltage Range (2.0 V to 16 V), Allows Telephone Line Powered Applications
- Low Quiescent Supply Current (2.7 mA Typ) for Battery Powered
Applications
- Chip Disable Input to Power Down the IC
- Low Power--Down Quiescent Current (65 µA Typ)
- Drives a Wide Range of Speaker Loads (8.0 Ω and Up)
- Output Power Exceeds 250 mW with 32 Ω Speaker
- Low Total Harmonic Distortion (0.5% Typ)
- Gain Adjustable from <0 dB to >46 dB for Voice Band
- Requires Few External Components
- Pb-Free Packaging Designated by Suffix Code EF
Figure 1. 34119 Simplified Application Diagram
ORDERING INFORMATION
Range (TA) Package MC34119D/R2 -20°C to 70°C 8 SOICN MCZ34119EF/R2 Chip Disable Audio Input GND CC VIN 4 FC1 3 FC2 V01 V02 1 CD 34199
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Figure 2. 34119 Simplified Internal Block Diagram
5 V01
8 V02
Figure 3. 34119 Pin Connections Table 1. 34119 Pin Definitions mode. Input impedance is nominally 90 kΩ. the capacitor at FC1 is sufficient. (typically) 52 dB of power supply rejection. Turn--on time of the circuit is affected by the capacitor on this pin. This pin can be used as an alternate input. resistor is connected to this pin and VO1. 5 V01 Amplifier Output #1. The dc level is ≈ (VCC - 0.7 V)/2. 6 VCC DC supply voltage (+2.0 V to +16 V) is applied to this pin. 7 GND Ground pin for the entire circuit.
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ELECTRICAL CHARACTERISTICS
Table 2. Maximum Ratings permanent damage to the device.
- Pin soldering temperature limit is for 10 seconds maximum duration. Not designed for immersion soldering. Exceeding these limits may
cause malfunction or permanent damage to the device.
- Freescale’s Package Reflow capability meets Pb-free requirements for JEDEC standard J-STD-020C. For Peak Package Reflow
MC33xxxD enter 33xxx), and review parametrics.
Analog Integrated Circuit Device Data Freescale Semiconductor 5 34119 STATIC ELECTRICAL CHARACTERISTICS STATIC ELECTRICAL CHARACTERISTICS Table 3. Static Electrical Characteristics values noted reflect the approximate parameter means at TA = 25°C under nominal conditions unless otherwise noted.
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DYNAMIC ELECTRICAL CHARACTERISTICS DYNAMIC ELECTRICAL CHARACTERISTICS Table 4. Dynamic Electrical Characteristics values noted reflect the approximate parameter means at TA = 25°C under nominal conditions unless otherwise noted.
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ELECTRICAL PERFORMANCE CURVES Figure 10. Device Dissipation, 8.0Ω Load Figure 11. Device Dissipation, 16 Ω Load Figure 12. Device Dissipation, 32 Ω Load Figure 13. Distortion versus Power Figure 14. Distortion versus Power Figure 15. Distortion versus Power
Analog Integrated Circuit Device Data Freescale Semiconductor 9 34119 ELECTRICAL PERFORMANCE CURVES Figure 16. Maximum Allowable Load Power Figure 17. Power Supply Current Figure 18. Small Signal Response Figure 19. Large Signal Response Figure 20. VCC-VOH @ V01, V02 versus load Current Figure 21. VOL @ V01, V02 versus Load Current
1.0 V/DIV
2.0 V CC 16 V
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ELECTRICAL PERFORMANCE CURVES Figure 22. Input Characteristics @ CD (Pin 1) Figure 23. Small Signal Response Figure 24. Audio Amplifier with Bass Suppression Figure 25. Frequency Response of Figure 24 Figure 26. Audio Amplifier with Bandpass Figure 27. Frequency Response of Figure 26
5.0 F 50 k
Analog Integrated Circuit Device Data Freescale Semiconductor 11 34119 ELECTRICAL PERFORMANCE CURVES Figure 28. Split Supply Operation connected through a capacitor to ground as shown on the front page.
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muting purposes and to conserve power. Hz), a maximum closed loop gain of 46 is recommended. Amplifier #2 is internally set to a gain of - 1.0 (0 dB). IC, and therefore nearly cancel each other at the outputs. equal to [RF ⋅ IIB]. VO2 is shifted positive an equal amount. and C2 in the Typical Applications Circuit) at FC1 and FC2. ≈60% longer for VCC = 3.0 V, and ≈20% less for VCC = 9.0 V. Turn-off time is <10 µs upon removal of VCC. Figure 29. Turn-On Time versus C1 and C2 at Power-On “0” (0 V to 0.8 V), the 34119 is enabled for normal operation. normal operation to muted operation, is in excess of 70 dB. the CD signal, is <2.0 µs, and turn-on time is 12 ms-15 ms. Both times are independent of C1, C2, and VCC.
Analog Integrated Circuit Device Data Freescale Semiconductor 13 34119 FUNCTIONAL DESCRIPTION FUNCTIONAL INTERNAL BLOCK DESCRIPTION POWER DISSIPATION Figures 10 to 12 indicate the device dissipation (within the IC) for various combinations of VCC, RL, and load power. The maximum power which can safely be dissipated within the MC34119 is found from the following equation: PD = (140°C - TA)/θJA where TA is the ambient temperature; and θJA is the package thermal resistance (100°C/W for the standard DIP package, and 180°C/W for the surface mount package.) The power dissipated within the 34119, in a given application, is found from the following equation: PD = (VCC x ICC) + (IRMS x VCC) - (RL x IRMS where ICC is obtained from Figure 17; and IRMS is the RMS current at the load; and RL is the load resistance. Figures 10 to 12, along with Figures 13 to 15 (distortion curves), and a peak working load current of ±200 mA, define the operating range for the 34119. The operating range is further defined in terms of allowable load power in Figure 16 for loads of 8.0Ω, 16Ω and 32Ω. The left (ascending) portion which 10% distortion occurs. The center flat portion of each curve is defined by the maximum output current capability of the 34119. The right (descending) portion of each curve is defined by the maximum internal power dissipation of the IC at 25°C. At higher ambient temperatures, the maximum load power must be reduced according to the above equations. Operating the device beyond the current and junction temperature limits will degrade long term reliability. LAYOUT CONSIDERATIONS Normally a snubber is not needed at the output of the 34119, unlike many other audio amplifiers. However, the PC board layout, stray capacitances, and the manner in which the speaker wires are configured, may dictate otherwise. Generally, the speaker wires should be twisted tightly, and not more than a few inches in length.
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- = Optional Differential Gain = 2 x RF RI + #1 Bias Circuit Speaker Chip Disable Audio Input GND RF 75 k 6V CC CI 0.1 RI 3.0 k VIN 4 FC1 3 1.0 F C2* 5.0µF FC2 50 k 125 k 50 k 4.0 k4.0 k
5 VO1
8 VO2
This device contains 45 active transistors. µ
Analog Integrated Circuit Device Data Freescale Semiconductor 15 34119 PACKAGING PACKAGE DIMENSIONS PACKAGING PACKAGE DIMENSIONS For the most current package revision, visit www.freescale.com and perform a keyword search using the “98A” listed below. D SUFFIX EF SUFFIX (PB-FREE) PLASTIC PACKAGE 98ASB42564B ISSUE U
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REVISION HISTORY
REVISION DATE DESCRIPTION OF CHANGES 2.0 11/2006 • Converted to the current Freescale format
- Implemented Revision History page
- Removed Peak Package Reflow Temperature During Reflow (solder reflow) parameter from Maximum Ratings on page 4. Added note with instructions from www.freescale.com
- Updated the Package drawing to the current revision 3.0 12/2006 • Restated note Freescale’s Package Reflow capability meets Pb-free requirements for JEDEC standard J-STD-020C. For Peak Package Reflow Temperature and Moisture Sensitivity Levels (MSL), Go to www.freescale.com, search by part number [e.g. remove prefixes/suffixes and enter the core ID to view all orderable parts. (i.e. MC33xxxD enter 33xxx), and review parametrics. on page 4
Rev. 3.0 RoHS-compliant and/or Pb-free versions of Freescale products have the functionality and electrical characteristics of their non-RoHS-compliant and/or non-Pb-free counterparts. For further information, see http://www.freescale.com or contact your Freescale sales representative. For information on Freescale’s Environmental Products program, go to http:// www.freescale.com/epp. 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 customer’s 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., 2007. All rights reserved. How to Reach Us: Home Page: www.freescale.com Web Support: http://www.freescale.com/support USA/Europe or Locations Not Listed: Freescale Semiconductor, Inc. Technical Information Center, EL516
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