Ordering number : ENA0494A Monolithic Linear IC LA42102 Audio Output for TV application 10W × 2ch Power Amplifier Overview LA42102 is 10W 2-channel AF power amplifier intended for televisions. Functions • 10W × 2 channels (VCC = 14V, RL = 8Ω). • Standby function. • Built-in mute function. • Built-in various protection circuit (short to VCC/short to groumd/load shorting/overheating). 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. 52307 MS PC / 40407 MS PC 20060926-S00001 No.A0494-1/8 LA42102 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 Rg = 0, RL = OPEN Output power PO1 THD = 10% Total harmonic distortion THD PO = 1W Voltage gain VG Output noise voltage VNO Ripple rejection ratio SVRR Channel separation CH.Sep Mute attenuation value 8 Vmute 33 Vst Input resistance Ri 0 10 µA 70 140 mA W 0.06 0.2 % 35 37 dB 0.2 0.4 mVrms Rg = 0, fR = 100Hz, VCCR = 0dBm 40 50 dB Rg = 10kΩ, VO = 0dBm 50 60 dB VO = 1Vrms, BPF = 20Hz to 20kHz 80 90 dB Mute ON *1 1.7 3.0 0 0.5 V 2.5 VCC V Mute OFF Standby control voltage (pin 5) max 10 Rg = 0, BPF = 20Hz to 20kHz ATT Mute control voltage (pin 6) 40 VO = 0dBm Unit typ Amplifier ON *1 Amplifier OFF 0 21 30 V 0.5 V 39 kΩ *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.A0494-2/8 LA42102 Block Diagram Standby VCC 5 7 Input amplifier 12 +OUT1 IN1 2 Output amplifier Ri= 30kΩ 11 -OUT1 MUTE 6 VCC/ground shorting protection circuit Load shorting protection circuit Thermal protection circuit PRE GND 3 IN2 4 PWR 10 GND 8 +OUT2 9 -OUT2 Output amplifier Ri= 30kΩ Input amplifier 1 Ripple Filter Test Circuit LA42102 Ripple Filter 1 C3 + 47µF /25V * IN1 PRE GND IN2 2 3 4 C1 4.7µF /10V * STBY MUTE 5 C2 4.7µF /10V VCC +OUT2 -OUT2 6 7 8 C4 C5 10µF 1000µF /10V /25V R1 15kΩ + + PWR GND 9 RL C8 0.1µF R4 2.2Ω 10 C9 0.1µF R5 2.2Ω -OUT1 +OUT1 11 RL C7 0.1µF R3 2.2Ω N.C. 12 13 C6 0.1µF R2 2.2Ω +5V PCA00898 * LA42102 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 LA42102. No.A0494-3/8 LA42102 External Components C1, C2 : Input coupling capacitors, for which 4.7µF or less is recommended. LA42102 employs the zero-bias type input circuit, with the input pin potential being nearly zero. Accordingly, the polarity must be determined according to the DC potential of a circuit connected to the previous stage of LA42102. C3 : Capacitor for starting time of the ripple filter and amplifier, for which 47µF is recommended. C4, R1 : Capacitor and resistor for mute. C4 is necessary even when the mute function is not used. C5 : Power capacitor. C6 to C9 : Capacitor and resistor for oscillation prevention. For C6 to C9, the polyester film capacitor with superior R2 to R5 temperature characteristics (Mylar capacitor) is recommended. Use R2 to R5 of 2.2Ω along with the capacitor. 1. Mute function (pin 6) With the pin 6 voltage of 1.7V (minimum) or more, the mute function is turned ON. Set the VM application voltage so that the pin 6 voltage becomes. 1.7V or more. The mute time constant is determined by R1 and C4. 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. Note that the MUTE pin (pin 6) incorporates the anti-electrostatic diode, allowing the current to flow through the diode when the potential of VCC 7 pin decreases below that of pin 6. Mute VCC R1 VM 2kΩ 6 C4 + 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 15 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.A0494-4/8 LA42102 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.A0494-5/8 LA42102 ICCO – VCC PO – VCC 20 RL = open Rg = 0Ω THD = 10% RL = 8Ω Rg = 600Ω f = 1kHz 18 100 16 Output power, PO – W Quiescent current, ICCO – mA 120 80 60 40 14 r 12 ila im 10 and ch1 8 ss 2i ch 6 4 20 2 0 4 8 12 16 0 8 18 10 12 1.5 7 5 3 2 THD – PO (ch1) VCC = 14V RL = 8Ω Rg = 600Ω 0.1 7 5 3 2 10kHz 0.1 7 5 1kHz 100Hz 3 2 0.01 0.1 2 3 5 7 2 1 3 5 7 10 2 3 1.5 7 5 3 2 THD – PO (ch2) 0.1 7 5 3 2 10kHz 0.1 7 5 1kHz 3 2 100Hz 0.01 0.1 5 7 100 2 3 5 7 Response – dB – 0.5 ch2 ch1 – 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 Total harmonic distortion, THD – % Response – f – 1.0 10 7 5 CHSep. – f 3 2 – 30 – 40 – 50 CH2→1 CH1→2 – 70 2 3 5 7 100 2 3 5 7 1k 2 3 5 7 10k Frequency, f – Hz 3 5 7 100 0.1 7 5 3 2 0.1 7 5 ch2 3 2 ch1 0.5 – 20 10 2 2 3 5 7 100 2 3 5 7 1k 2 3 5 7 10k 2 3 5 7100k Frequency, f – Hz VCC = 14V RL = 8Ω Rg = 10kΩ VO = 0dBm – 60 5 7 10 THD – f 0.01 10 5 7100k Output noise voltage, VNO – mVrms Channel separation, CHSep. – dB – 10 3 VCC = 14V RL = 8Ω Rg = 600Ω PO = 1W Frequency, f – Hz 0 2 1 Output power, PO – W 0 – 3.5 18 16 VCC = 14V RL = 8Ω Rg = 600Ω Output power, PO – W 0.5 14 Supply voltage, VCC – V Total harmonic distortion, THD – % Total harmonic distortion, THD – % Supply voltage, VCC – V 2 3 5 7100k VNO – Rg VCC = 14V RL = 8Ω BPF = 20Hz to 20kHz 0.4 0.3 ch2 ch1 0.2 0.1 0 10 2 3 5 7 100 2 3 5 7 1k 2 3 5 7 10k 2 3 Resistance for signal generation, Rg – Ω 5 7100k No.A0494-6/8 LA42102 – 10 – 20 SVRR – fr 0 VCC = 14V RL = 8Ω Rg = 0 VCCR = 0dBm CVCC (CVCC) = 1µF Ripple rejection ratio, SVRR – dB Ripple rejection ratio, SVRR – dB 0 – 30 – 40 ch2 – 50 ch1 – 60 2 3 5 7 100 2 3 5 7 1k 2 3 5 7 10k 2 3 – 20 – 30 – 40 ch2 – 50 5 7100k Ripple frequency, fr – Hz Ripple rejection ratio, SVRR – dB Mute attenuation value, Mute ATT – dB – 10 – 20 – 30 – 40 – 50 – 60 – 70 – 80 – 90 VCC = 14V RL = 8Ω Rg = 600Ω f = 1kHz VO = 1Vrms (VMUTE = 0V) BPF = 20Hz to 20kHz – 100 0.5 0.6 0.7 0.8 0.9 Allowable power dissipation, Pd – W 9 20 VCC = 14V RL = 8Ω Rg = 0 fR = 100Hz CVCC (CVCC) = 1µF SVRR = 20log (VO/VCCR) – 10 – 20 – 30 – 40 ch2 – 50 ch1 – 60 – 70 1.0 1.1 1.2 1.3 Mute – V 12 16 SVRR – VCCR 0 ch1 and ch2 is similar 0 12 Supply voltage, VCC – V Mute – MUTE ATT 10 ch1 – 60 – 70 8 – 70 10 – 10 SVRR – VCC RL = 8Ω Rg = 0 fR = 100Hz VCCR = 0dBm CVCC (CVCC) = 1µF 0 0.5 1 1.5 2 VCCR– Vrms Pd – PO VCC = 14V RL = 8Ω Rg = 600Ω f = 1kHz Pd = VCC×ICC-PO 6 3 0 0.1 2 3 5 7 1 2 3 5 7 10 Output power, PO – W No.A0494-7/8 LA42102 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.A0494-8/8