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Ordering number : ENA0494A
Monolithic Linear IC
LA42102
Overview
Audio Output for TV application
10W x 2ch Power Amplifier
LA42102 is 10W 2-channel AF power amplifier intended for televisions.
Functions
* 10W x 2 channels (VCC = 14V, RL = 8). * 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 = 25C
Parameter Maximum supply voltage Allowable power dissipation Maximum junction temperature Thermal resistance Operating temperature Storage temperature Symbol VCC max Pd max Tj max jc Topr Tstg Infinitely large heat sink Conditions Ratings 17 15 150 3 -25 to +75 -40 to +150 Unit V W C C/W C C
Operating Conditions at Ta = 25C
Parameter Recommended supply voltage Recommended load resistance Allowable operating supply voltage range Symbol VCC RL VCC op Under conditions such that Maximum ratings are not exceeded Conditions Ratings 14 8 10 to 17 Unit V V
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 = 25C, VCC = 14V, RL = 8, f = 1kHz, Rg = 600
Parameter Standby current Quiescent current Output power Total harmonic distortion Voltage gain Output noise voltage Ripple rejection ratio Channel separation Mute attenuation value Mute control voltage (pin 6) Symbol Ist ICCO PO1 THD VG VNO SVRR CH.Sep ATT Vmute Amplifier OFF Rg = 0, RL = OPEN THD = 10% PO = 1W VO = 0dBm Rg = 0, BPF = 20Hz to 20kHz Rg = 0, fR = 100Hz, VCCR = 0dBm Rg = 10k, VO = 0dBm VO = 1Vrms, BPF = 20Hz to 20kHz Mute ON *1 Mute OFF Standby control voltage (pin 5) Vst Amplifier ON *1 Amplifier OFF Input resistance Ri 40 50 80 1.7 0 2.5 0 21 30 33 40 8 Conditions min Ratings typ 0 70 10 0.06 35 0.2 50 60 90 3.0 0.5 VCC 0.5 39 0.2 37 0.4 max 10 140 A mA W % dB mVrms dB dB dB V V V V k Unit
*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
18
Pd max -- Ta
Infinitely large heat sink
15
25.6 C0.7 3.4 (10.0) ( 2.0)
2.4
Allowable power dissipation, Pd max - W
3.0 min
16 14 12 10 8 6 4 2 0 --20
100x100x1.5mm3
11.7
jc=3C/W
11.2 (11.8)
15.4max
(13.9)
50x50x1.5mm3
5.8
4.5
1 0.5 2.0 (0.8) 1.15
13
1.0 min
No heat sink
0.4 1.2
0
20
40
60
80
100
120
140
160
Ambient temperature, Ta - C
SANYO : SIP13H
No.A0494-2/8
LA42102
Block Diagram
Standby 5 VCC 7
Input amplifier 12 +OUT1 IN1 2 Ri= 30k Output amplifier 11 -OUT1 MUTE 6
VCC/ground shorting protection circuit Load shorting protection circuit Thermal protection circuit
PWR 10 GND
PRE GND 3
8 IN2 4 Ri= 30k Input amplifier Output amplifier 9
+OUT2
-OUT2
1 Ripple Filter
Test Circuit
LA42102
Ripple Filter 1 C3 + 47F /25V * PRE GND 3 PWR GND 10
IN1 2
IN2 4
STBY MUTE 5
VCC
+OUT2 -OUT2 9 RL C8 0.1F R4 2.2
-OUT1 +OUT1 11 RL C7 0.1F R3 2.2 12
N.C. 13
C1 4.7F /10V
*
C2 4.7F /10V
6 7 8 C4 C5 10F 1000F /10V /25V R1 15k + +
C9 0.1F R5 2.2
C6 0.1F R2 2.2
PCA00898
+5V
* 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 4.7F 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 47F 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 2.2 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
VM
R1 6 C4 + 10F
2k
20k
2k
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
Pin 5 voltage 0 to 0.5 2.5 to 15 Amplifier OFF ON Standby ON OFF
Standby
VCC 2VBE VS RSTB 5 30k 1.5k 15k
To suppress the inrush current to pin 5 when the VSTB application voltage is high, insert the control resistor (RSTB). Example : Tosuppress the pin 5 inrush current to 500A or less RSTB = Applied voltage (VSTB) -2VBE (About 1.4V) -15k 500A
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 160C 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
120
ICCO - VCC
RL = open Rg = 0
Output power, PO - W
20 18 16 14 12 10 8 6 4 2
PO - VCC
THD = 10% RL = 8 Rg = 600 f = 1kHz
Quiescent current, ICCO - mA
100
80
60
40
ch1
and
ch
ss 2i
im
ila
r
20
0 4 8 12 16 18
0 8
10
12
14
16
18
Supply voltage, VCC - V
1.5 7 5 3 2 0.1 7 5 3 2 0.1 7 5 3 2 0.01 0.1 2 3
THD - PO (ch1)
Supply voltage, VCC - V
1.5 7 5 3 2 0.1 7 5 3 2 0.1 7 5 3 2 0.01 0.1 2 3
THD - PO (ch2)
Total harmonic distortion, THD - %
Total harmonic distortion, THD - %
VCC = 14V RL = 8 Rg = 600
VCC = 14V RL = 8 Rg = 600
10kHz 1kHz 100Hz
10kHz
1kHz 100Hz
57 2 3 5 7 10 2 3 5 7 100
57
1
2
3
5 7 10
2
3
5 7 100
1
Output power, PO - W
0.5 0 - 0.5 - 1.0 - 1.5 - 2.0 - 2.5 - 3.0 - 3.5 - 4.0 - 4.5
Response - f
Output power, PO - W
10 7 5 3 2 0.1 7 5 3 2 0.1 7 5 3 2 0.01 10 23
THD - f
ch2 ch1
Total harmonic distortion, THD - %
VCC = 14V RL = 8 Rg = 600 PO = 1W
Response - dB
VCC = 14V RL = 8 Rg = 600 VO = 0dBm (f = 1kHz)
23 5 7 100 23 5 7 1k 23 5 7 10k 23 5 7100k
ch2 ch1
5 7 100 23 5 7 1k 23 5 7 10k 23 57 100k
10
Frequency, f - Hz
0 - 10
Frequency, f - Hz
0.5
CHSep. - f
Output noise voltage, VNO - mVrms
VNO - Rg
VCC = 14V RL = 8 BPF = 20Hz to 20kHz
Channel separation, CHSep. - dB
VCC = 14V RL = 8 Rg = 10k VO = 0dBm
0.4
- 20
- 30
0.3
ch2 ch1
- 40
0.2
- 50
- 60 - 70 10 23 5 7 100 23 5 7 1k 23
CH21 CH12
5 7 10k 23 5 7100k
0.1
0 10
23
Frequency, f - Hz
Resistance for signal generation, Rg -
5 7 100
23
5 7 1k
23
5 7 10k
23
5 7100k
No.A0494-6/8
LA42102
0
SVRR - fr
Ripple rejection ratio, SVRR - dB
VCC = 14V RL = 8 Rg = 0 VCCR = 0dBm CVCC (CVCC) = 1F
0 - 10
SVRR - VCC
RL = 8 Rg = 0 fR = 100Hz VCCR = 0dBm CVCC (CVCC) = 1F
Ripple rejection ratio, SVRR - dB
- 10
- 20
- 20
- 30
- 30
- 40
- 40
ch2
- 50
ch2
- 50
- 60 - 70 10 23
ch1
5 7 100 23 5 7 1k 23 5 7 10k 23 5 7100k
- 60 - 70 8
ch1
12 16 20
Ripple frequency, fr - Hz
10
Mute - MUTE ATT
ch1 and ch2 is similar
Supply voltage, VCC - V
0
SVRR - VCCR
Mute attenuation value, Mute ATT - dB
0 - 10 - 20 - 30 - 40 - 50 - 60 - 70 - 80 - 90
Ripple rejection ratio, SVRR - dB
- 10
- 20
VCC = 14V RL = 8 Rg = 0 fR = 100Hz CVCC (CVCC) = 1F SVRR = 20log (VO/VCCR)
- 30
- 40
ch2
- 100 0.5
VCC = 14V RL = 8 Rg = 600 f = 1kHz VO = 1Vrms (VMUTE = 0V) BPF = 20Hz to 20kHz
0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3
- 50
- 60 - 70 0 0.5 1 1.5
ch1
2
Mute - V
12
Pd - PO
VCC = 14V RL = 8 Rg = 600 f = 1kHz Pd = VCCxICC-PO
VCCR- Vrms
Allowable power dissipation, Pd - W
9
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

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