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Ordering number : ENA0714
Monolithic Linear IC
LA42205
Overview
Audio Output for TV application
5W x 2ch Power Amplifier
The LA42205 is a 5W 2-channel power amplifier IC and optimal for use as the audio output power amplifier in TV application
Functions
* 5W x 2 channels (VCC = 9.5V, RL = 8) * Built-in standby function. * Built-in mute function. * Built-in various protection circuit (short to VCC/short to ground/load shorting/overheating).
Specifications
Maximum Ratings at Ta = 25C
Parameter Maximum supply voltage Allowable power dissipation Maximum output current Maximum junction temperature Thermal resistance Operating temperature Storage temperature Symbol VCC max Pd max IO peak Tj max jc Topr Tstg No signal Infinitely large heat sink Per channel Conditions Ratings 16 30 1.0 150 2.5 -20 to +75 -40 to +150 Unit V W A 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 9.5 8 7 to 14 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.
53007 MS PC 20070205-S00003 No.A0714-1/7
LA42205
Electrical Characteristics at Ta = 25C, VCC = 9.5V, 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 7) 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 6) Vst Amplifier ON *1 Amplifier OFF Input resistance Ri 40 50 80 1.5 0 2.5 0 21 30 30 35 4 Conditions min Ratings typ 0 70 5 0.06 32 0.2 50 60 90 3.0 0.5 VCC 0.5 39 0.2 34 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 6) and MUTE pin (pin 7) incorporate the anti-electrostatic diode allowing the current to flow through the diode when the potential of VCC (pin 9) decreases below that of pin 6 or 7.
Package Dimensions
unit : mm (typ) 3336
21.6 (20.0) (11.0) (R1.75) HEAT SPREADER 3.0
40.0
Pd max - Ta
Aluminum heat sink mounting conditions Tightening torque : 39N.cm silicone grease applied Infinitely large heat sink jc = 2.5C/W
Allowable power dissipation, Pd max - W
30.0
(8.6)
(11.0)
(14.55)
20.0 16.7
17.9
5C/W heat sink 10C/W heat sink
(9.05)
12.4
10.0
3.35
0.4
20C/W heat sink
5.6 0 - 20
1 (1.91) 1.27 0.7
15 2.54 2.54
0
20
40
60
80
100
120
140
Ambient temperature, Ta - C
SANYO : HZIP15
No.A0714-2/7
LA42205
Block Diagram
Standby 6 VCC 9
Input amplifier 14 +OUT1 IN1 3 Ri= 30k Output amplifier 13 -OUT1 MUTE 7
VCC/ground shorting protection circuit Load shorting protection circuit Thermal protection circuit
PWR 11 GND
PRE GND 4
10 +OUT2 IN2 5 Ri= 30k Input amplifier Output amplifier 12 -OUT2
2 Ripple Filter
Test Circuit
LA42205
GND (H.S) 1 Ripple Filter 2 PRE GND 4 PWR GND -OUT2 -OUT1 +OUT1 11 12 13 14 GND (H.S) 15
IN1 3
IN2 5
STBY MUTE 6 7 8
VCC +OUT2 9 10
+ C3 100F /25V C1 0.47F
C2 0.47F
R1 15k
+ C4 10F /6.3V
RL = 8 RL = 8 + C6 470F /25V
+5V +VCC
C5 0.1F
* Pin 8 : NC. This pin must be left open. * Pins 1 and 15 are connected to the heat sink. They must be connected to power and ground. Pin Voltage Conditions : VCC = 9.5V, STBY = 5V
Pin No. Pin Pin voltage (V) 1 GND (H.S) 0 2 Ripple Filter 9.2 3 IN1 0.7 4 Pre GND 0 5 IN2 0.7 6 STBY 5 7 Mute 0 8 N.C. 9 10 11 12 13 14 15 VCC +OUT2 Power -OUT2 -OUT1 +OUT1 GND GND (H.S) 9.5 4.8 0 4.8 4.8 4.8 0
No.A0714-3/7
LA42205
External Components
C1, C2 C3 C4, R1 C5 C6 : Input coupling capacitors. A value of 47F is recommended. The input pin potential is 0.7V. : Capacitor which sets the starting time of the ripple filter and amplifier. A value of 100F is recommended. : Capacitor and resistor for muting function. C4 is necessary even when the mute function is not used. : This capacitor increases the oscillator margin. We recommend a value of 0.1F. : Power supply capacitor.
1. Muting function (pin 7) The muting function is turned on when the pin 7 voltage is 1.5V (minimum) or higher. The VM applied voltage is set so that the pin 7 voltage will be 1.5V or higher. The muting time constant is determined by an C4, R1 circuit, and the component values must be determined by a careful analysis, since they are related to impulse noise that occurs when the muting function is turned on or off. Also note that since C4 affects the occurrence of impulse noise when the amplifier is turned on or off, it will be required if the muting function is not used.
Mute
VCC R1 15k VM C4 + 10F /6.3V 7 20k 7.5k
1k
2k
2. Standby function (pin 6) The amplifier is turned on by applying a level of 2.5V (minimum) or higher to pin 6. Pin 6 control voltage
Pin 6 voltage 0 to 0.5 2.5 to VCC Amplifier Off On Standby On Off
The limit resistor RSTB may be inserted if the VSTB applied voltage is comparatively high and there is a need to suppress the pin 6 sink current.
Standby
VCC 2VBE VS RSTB 6 30k 1.5k 15k
No.A0714-4/7
LA42205
Usage Notes
1. This IC includes three short circuit protection circuits : shorting to power (shorts between an output and the power supply), shorting to ground (shorts between an output and ground), and load shorting protection circuits. These protection circuits operate while the corresponding abnormal condition continues, and recover automatically when the abnormal condition is resolved. There are, however, cases where, due to IC usage conditions, one of these protection circuits may lock and continue operating after the problem has been resolved. If this occurs, the protection circuit state can be reset by either switching the IC to standby mode or by temporarily cutting power from the IC. 2. This IC includes a thermal protection circuit that operates if the junction temperature (Tj) rises to 160C or higher. This circuit gradually reduces the output level. 3. If this IC is operated in the vicinity of any of its maximum ratings, even slight changes in operating conditions could result in a maximum rating being exceeded. Since this could lead to the destruction of the IC, end product designs must include adequate margins in the supply voltage and other parameters so that the IC is always used within ranges such that the maximum ratings are never exceeded.
No.A0714-5/7
LA42205
140
ICCO - VCC
RL = open Rg = 0 VSTBY = 5V
Output power, PO - W
12
PO - VCC
THD = 10% RL = 8 Rg = 600 f = 1kHz
Quiescent current, ICCO - mA
120
10
100
8
80
6
60
4
40
20 0 6 8 10 12 14 16 18
2
0 6
8
10
12
14
Supply voltage, VCC - V
10 7 5 3 2 1 7 5 3 2 0.1 7 5 3 2 0.01 0.1 2 3 5 7 2 3 5 7
THD - PO (ch1)
Supply voltage, VCC - V
10 7 5 3 2 1 7 5 3 2 0.1 7 5 3 2 0.01 0.1 2 3 5 7 2 3 5 7
THD - PO (ch2)
Total harmonic distortion, THD - %
Total harmonic distortion, THD - %
VCC = 9.5V RL = 8 Rg = 600
VCC = 9.5V RL = 8 Rg = 600
10kHz 1kHz 100Hz
10kHz 1kHz 100Hz
1
10
1
10
Output power, PO - W
10 7 5 3 2 1 7 5 3 2 0.1 7 5 3 2 0.01 10 23 5 7 100 23 5 7 1k 23 5 7 10k 23 5 7100k
THD - f
Output power, PO - W
0.5 0 - 0.5
Response - f
Total harmonic distortion, THD - %
VCC = 9.5V RL = 8 Rg = 600 PO = 1W
Response - dB
ch1 ch2
-1 - 1.5 -2 - 2.5 -3 - 3.5 -4 10
ch2 ch1
VCC = 9.5V RL = 8 Rg = 600 VO = 0dBm (f = 1kHz)
23 5 7 100 23 5 7 1k 23 5 7 10k 23 57 100k
Frequency, f - Hz
0.4
Frequency, f - Hz
0
VNO - Rg
Channel separation, CH Sep. - dB
CH Sep. - f
VCC = 9.5V RL = 8 Rg = 10k VO = 0dBm
Output noise voltage, VNO - mVrms
VCC = 9.5V RL = 8 B.P.F = 20Hz to 20kHz
- 10
0.3
- 20
0.2
ch2 ch1
- 30
- 40
- 50
0.1
ch1ch2 ch2ch1
23 5 7 100 23 5 7 1k 23 5 7 10k 23 57 100k
- 60 - 70
0 10
23
Resistance for signal generation, Rg -
5 7 100
23
5 7 1k
23
5 7 10k
23
5 7100k
10
Frequency, f - Hz
No.A0714-6/7
LA42205
0
SVRR - VCC
Ripple rejection ratio, SVRR - dB
Ripple rejection ratio, SVRR - dB
- 10
- 20
RL = 8 Rg = 0 fr = 100Hz VCCR = 0dBm CVCC = 0.1F
0 - 10
SVRR - fr
VCC = 13V RL = 8 Rg = 0 VCCR = 0dBm CVCC = 0.1F
- 20
- 30
- 30
- 40
- 40
- 50
ch1 and ch2 is similar
- 50
ch1 and ch2 is similar
- 60 - 70 6 8 10 12 14 16
- 60 - 70 10 23 5 7 100 23 5 7 1k 23 5 7 10k 23 57 100k
Supply voltage, VCC - V
0
Ripple frequency, fr - Hz
10
ATT - Mute Pin
Pd - PO
VCC = 9.5V RL = 8 Rg = 600 f = 1kHz Pd = VCCxICC-2PO
Mute attenuation value, Mute ATT - dB
- 10 - 20 - 30 - 40 - 50 - 60 - 70 - 80 - 90
ch1 and ch2 is similar
Allowable power dissipation, Pd - W
8
6
Pd
4
- 100 0.5
VCC = 9.5V RL = 8 Rg = 600 f = 1kHz VO = 1Vrms (Mute pin = 0V) B.P.F. =20Hz to 20kHz
0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4
2
0 0.1
2
3
5
7
1
2
3
5
7
10
Mute pin - V
Output power, PO - W
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.A0714-7/7

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