Ordering number : ENA0740 Monolithic Linear IC LA42101 Audio Output for TV application 10W × 1ch Power Amplifier Overview LA42101 is a 10W 1-channel AF power amplifier intended for televisions. Functions • 10W × 1 channels (VCC = 14V, RL = 8Ω). • Standby function. • Built-in mute function. • Built-in various protection circuit (short to power/short to ground/load shorting/thermal). Specifications Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Symbol Allowable power dissipation Pd max Maximum junction temperature Tj max Thermal resistance Conditions Ratings VCC max Infinitely large heat sink Unit 17 V 15 W 150 θjc 3 °C °C/W Operating temperature Topr -25 to +75 °C Storage temperature Tstg -40 to +150 °C Operating Conditions at Ta = 25°C Parameter Symbol Conditions Ratings Unit Recommended supply voltage VCC 14 V Recommended load resistance RL 8 Ω 10 to 17 V Allowable operating supply voltage range VCC op Under conditions such that Maximum ratings are not exceeded Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment (home appliances, AV equipment, communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee thereof. If you should intend to use our products for applications outside the standard applications of our customer who is considering such use and/or outside the scope of our intended standard applications, please consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely responsible for the use. Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer' s products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer' s products or equipment. 53007 MS PC 20070313-S00014 No.A0740-1/7 LA42101 Electrical Characteristics at Ta = 25°C, VCC = 14V, RL = 8Ω, f = 1kHz, Rg = 600Ω Parameter Symbol Ratings Conditions min Standby current Ist Quiescent current Amplifier OFF ICCO Output power Rg = 0, RL = OPEN PO Total harmonic distortion Voltage gain 25 THD = 10% THD 8 VO = 0dBm max 0 10 μA 45 90 mA 10 PO = 1W VG 33 0.2 % 35 37 dB 0.2 0.4 mVrms VNO Ripple rejection ratio SVRR Rg = 0, fR = 100Hz, VCCR = 0dBm 40 50 ATT VO = 1Vrms, BPF = 20Hz to 20kHz 80 90 Mute ON *1 1.5 Mute control voltage (pin 6) Rg = 0, BPF = 20Hz to 20kHz Vmute Mute OFF Standby control voltage (pin 5) Vst Amplifier ON *1 dB dB 3.0 V 0 0.5 V 2.5 VCC V 0 0.5 V 39 kΩ Amplifier OFF Input resistance W 0.06 Output noise voltage Mute attenuation value Unit typ Ri 21 30 *1 : Note that the standby pin (pin 5) and MUTE pin (pin 6) incorporate the anti-electrostatic diode allowing the current to flow through the diode when the potential of VCC 7 pin decreases below that of pin 5/6. Package Dimensions unit : mm (typ) 3107B Pd max -- Ta 2.4 1 13 0.5 2.0 1.15 1.0 min 15.4max 4.5 (13.9) 2.0) 11.2 (11.8) ( (10.0) 3.4 3.0 min 25.6 C0.7 0.4 1.2 Allowable power dissipation, Pd max – W 18 16 14 Infinitely large heat sink 15 100×100×1.5mm3 12 θjc=3ºC/W 11.7 10 8 50×50×1.5mm3 6 5.8 4 2 0 --20 No heat sink 0 20 40 60 80 100 120 140 160 Ambient temperature, Ta – ˚C (0.8) SANYO : SIP13H No.A0740-2/7 LA42101 Block Diagram Standby VCC 5 7 MUTE 6 VCC/ground shorting protection circuit Load shorting protection circuit Thermal protection circuit PRE GND 3 IN 4 PWR 10 GND 8 +OUT2 9 -OUT2 Output amplifier Ri= 30kΩ Input amplifier 1 Ripple Filter Application Circuit Example LA42101 Ripple Filter 1 C2 + 47μF /25V N.C. PRE GND IN 2 3 4 * STBY MUTE 5 C1 4.7μF /10V VCC 6 C3 10μF /10V R1 15kΩ + +OUT 7 8 C4 1000μF /25V + -OUT PWR GND N.C. N.C. N.C. 9 10 11 12 13 RL C5 0.1μF R4 2.2Ω C6 0.1μF R5 2.2Ω +5V * LA42101 employs the zero-bias type input circuit, with the input pin potential being nearly zero (about 0.01V). Accordingly, the polarity must be determined according to the DC potential of a circuit connected to the previous stage of LA42101. No.A0740-3/7 LA42101 External Components C1 C2 C3, R1 C4 C5, C6 R2, R3 : The input coupling capacitors, for which 4.7μF or less is recommended. LA42101 employs the zero-bias type input circuit, with the input pin potential being nearly zero (about 0.01V). Accordingly, the polarity must be determined according to the DC potential of a circuit connected to the previous stage of LA42101. : Capacitor for starting time of the ripple filter and amplifier, for which 47μF is recommended. : Capacitor and resistor for mute. C3 is necessary even when the mute function is not used. : Power capacitor. : Capacitor and resistor for oscillation prevention. For C5, C6, the polyester film capacitor with superior temperature characteristics (Mylar capacitor) is recommended. Use R2, R3 of 2.2Ω along with the capacitor. 1. Mute function (pin 6) With the pin 6 voltage of 1.5V (minimum) or more, the mute function is turned ON. Set the VM application voltage so that the pin 6 voltage becomes. 1.5V or more. The mute time constant is determined by R1 and C3. Determine the constant after careful review because it is related to the pop sound at mute ON/OFF. C4 is necessary even when the mute function is not used because it is related to the pop sound when the amplifier is turned ON. Example : The pin 6 voltage becomes about 1.8V when VM = 5V and R1 = 15kΩ. Note that the MUTE pin (pin 6) incorporates the anti-static diodo and that decrease of the VCC pin 7 potential below that of pin 6 causes the current to flow through the diode. Mute VCC R1 VM 2kΩ 6 C3 + 10μF 20kΩ 2kΩ 2. Standby function (pin 5) The amplifier is turned ON when the voltage of 2.5V (minimum) or more is applied to pin 5. Pin 5 control voltage Standby Pin 5 voltage Amplifier Standby 0 to 0.5 OFF ON 2.5 to VCC ON OFF To suppress the inrush current to pin 5 when the VSTB application voltage is high, insert the control resistor (RSTB). VCC 2VBE VS RSTB 15kΩ 5 30kΩ Example : Tosuppress the pin 5 inrush current to 500μA or less RSTB = 1.5kΩ Applied voltage (VSTB) -2VBE (About 1.4V) -15kΩ 500μA Note that the standby pin (pin 5) incorporates the anti-electrostatic diode, allowing the cu orrent to flow through the diode when the potential of VCC pin 7 decreases below that of pin 5. No.A0740-4/7 LA42101 Cautions for us 1. Short-circuit (power-output short-circuit), ground fault (GND-output short-circuit), and load short-circuit protective circuits are incorporated. They are activated in case of abnormal connection. These circuits remain active while such abnormal connection continues and is reset automatically when the abnormality is removed. In certain conditions, the protective circuits may be locked and continue to be active even when the abnormality is removed. In this case, either enter the standby mode or turn OFF the power supply. 2. The thermal protection circuit is incorporated and is activated when the junction temperature (Tj) rises to about 160°C or more. The output is controlled to return gradually to the attenuated state. 3. When the product is used near the maximum rating, even the slightest change in the condition may cause exceeding of the maximum rating, resulting possibly in breakdown. Take the sufficient margin for the supply voltage, etc. and always use the product within a range never exceeding the maximum rating. No.A0740-5/7 LA42101 ICCO – VCC 25 RL = open Rg = 0Ω 20 80 Output power, PO – W Quiescent current, ICCO – mA 100 60 40 PO – VCC THD = 10% RL = 8Ω Rg = 600Ω f = 1kHz 15 10 5 20 0 4 8 12 16 20 0 8 24 12 10 7 5 3 2 THD – PO VCC = 14V RL = 8Ω Rg = 600Ω 1 7 5 10kHz 3 2 0.1 7 5 100Hz 1kHz 3 2 0.01 0.1 10 7 5 3 2 THD – f VCC = 14V RL = 8Ω Rg = 600Ω PO = 1W 1 7 5 3 2 0.1 7 5 3 2 0.01 2 3 5 7 2 1 3 5 7 10 10 2 3 5 7100 Output power, PO – W 0.5 Output noise voltage, VNO – mVrms 0.0 – 0.5 Response – dB – 1.0 – 1.5 – 2.0 – 2.5 – 3.0 – 4.0 – 4.5 VCC = 14V RL = 8Ω Rg = 600Ω VO = 0dBm (f = 1kHz) 10 2 3 5 7 100 2 3 5 7 1k 2 3 5 7 10k 2 3 – 20 SVRR – VCC 5 7100 2 3 5 7100k 5 7 10k 2 3 5 7100k 5 7 10k 2 3 0.4 0.3 0.2 0.1 0 RL = 8Ω Rg = 0 fr = 100Hz VCCR = 0dBm CVCC (CVCC) = 0.1μF – 30 – 40 – 50 – 60 – 70 8 2 3 VNO – Rg 0 10 5 7100k Ripple rejection ratio, SVRR – dB Ripple rejection ratio, SVRR – dB – 10 5 7100 VCC = 14V RL = 8Ω B.P.F = 20Hz to 20kHz 2 3 – 10 – 20 5 7 100 2 3 5 7 1k 2 3 Resistance for signal generation, Rg – Ω Frequency, f – Hz 0 2 3 Frequency, f – Hz Response – f 0.5 – 3.5 20 16 Supply voltage, VCC – V Total harmonic distortion, THD – % Total harmonic distortion, THD – % Supply voltage, VCC – V SVRR – fr VCC = 14V RL = 8Ω Rg = 0 VCCR = 0dBm CVCC (CVCC) = 0.1μF – 30 – 40 – 50 – 60 – 70 12 16 Supply voltage, VCC – V 20 10 2 3 5 7 100 2 3 5 7 1k 2 3 5 7100k Ripple frequency, fr – Hz No.A0740-6/7 LA42101 SVRR – VCCR 10 VCC = 14V RL = 8Ω Rg = 0 fr = 100Hz CVCC (CVCC) = 0.1μF SVRR = 20log (VO/VCCR) – 10 – 20 Allowable power dissipation, Pd – W Ripple rejection ratio, SVRR – dB 0 – 30 – 40 – 50 – 60 – 70 0 0.5 1 1.5 2 RVCCR – Vrms Mute attenuation value, Mute ATT – dB 6 4 2 0 0.1 2 3 5 7 1 2 3 5 7 10 Output power, PO – W ATT – Mute Pin 10 8 Pd – PO VCC = 14V RL = 8Ω Rg = 600Ω f = 1kHz Pd = VCC×ICC-PO 0 – 10 – 20 – 30 – 40 – 50 – 60 – 70 – 80 – 90 VCC = 14V RL = 8Ω Rg = 600Ω f = 1kHz VO = 1Vrms (VMUTE = 0V) B.P.F. =20Hz to 20kHz – 100 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 Mute pin – V SANYO Semiconductor Co.,Ltd. assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein. SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise to smoke or fire, or accidents that could cause damage to other property. When designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. In the event that any or all SANYO Semiconductor Co.,Ltd. products described or contained herein are controlled under any of applicable local export control laws and regulations, such products may require the export license from the authorities concerned in accordance with the above law. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise, without the prior written consent of SANYO Semiconductor Co.,Ltd. Any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the SANYO Semiconductor Co.,Ltd. product that you intend to use. Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. Upon using the technical information or products described herein, neither warranty nor license shall be granted with regard to intellectual property rights or any other rights of SANYO Semiconductor Co.,Ltd. or any third party. SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellctual property rights which has resulted from the use of the technical information and products mentioned above. This catalog provides information as of May, 2007. Specifications and information herein are subject to change without notice. PS No.A0740-7/7