LA42102 [SANYO]
Monolithic Linear IC Audio Output for TV application 10W 】 2ch Power Amplifier; 单片线性IC音频输出电视应用】 10W双声道功率放大器
| 型号： | LA42102 |
| 厂家： | 
SANYO SEMICON DEVICE |
| 描述： | Monolithic Linear IC Audio Output for TV application 10W 】 2ch Power Amplifier |
| 文件： | 总8页 (文件大小：89K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Ordering number : ENA0494A
Monolithic Linear IC
Audio Output for TV application
LA42102
10W × 2ch Power Amplifier
Overview
LA42102 is 10W 2-channel AF power amplifier intended for televisions.
Functions
• 10W × 2 channels (V
• Standby function.
= 14V, R = 8Ω).
L
CC
• Built-in mute function.
• Built-in various protection circuit (short to V /short to groumd/load shorting/overheating).
CC
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
V
Maximum supply voltage
Allowable power dissipation
Maximum junction temperature
Thermal resistance
V
max
17
15
CC
Pd max
Infinitely large heat sink
W
Tj max
θjc
150
°C
3
°C/W
°C
Operating temperature
Storage temperature
Topr
Tstg
-25 to +75
-40 to +150
°C
Operating Conditions at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
V
Recommended supply voltage
Recommended load resistance
V
14
8
CC
R
L
Ω
Allowable operating supply
voltage range
V
op
Under conditions such that
10 to 17
V
CC
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, V
= 14V, R = 8Ω, f = 1kHz, Rg = 600Ω
CC
L
Ratings
typ
Parameter
Symbol
Ist
Conditions
Unit
min
max
10
Standby current
Amplifier OFF
0
µA
mA
W
Quiescent current
I
Rg = 0, R = OPEN
L
40
8
70
10
140
CCO
Output power
P
1
THD = 10%
O
Total harmonic distortion
Voltage gain
THD
VG
P
V
= 1W
0.06
35
0.2
37
%
O
= 0dBm
33
dB
mVrms
dB
dB
dB
V
O
Output noise voltage
Ripple rejection ratio
Channel separation
Mute attenuation value
Mute control voltage (pin 6)
V
Rg = 0, BPF = 20Hz to 20kHz
0.2
50
0.4
NO
SVRR
CH.Sep
ATT
Rg = 0, fR = 100Hz, V R = 0dBm
CC
40
50
80
1.7
0
Rg = 10kΩ, V = 0dBm
60
O
V
= 1Vrms, BPF = 20Hz to 20kHz
90
O
Vmute
Mute ON *1
Mute OFF
3.0
0.5
V
Standby control voltage (pin 5)
Vst
Amplifier ON *1
Amplifier OFF
2.5
0
V
V
CC
0.5
V
Input resistance
Ri
21
30
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 V 7 pin decreases below that of pin 5/6.
CC
Package Dimensions
unit : mm (typ)
3107B
Pd max -- Ta
18
16
14
12
10
8
2.4
25.6
Infinitely large heat sink
(
2.0)
(10.0)
C0.7
3.4
15
100×100×1.5mm3
θjc=3ºC/W
11.7
50×50×1.5mm3
5.8
6
4
No heat sink
1
13
2
0
0.5
1.15
0.4
1.2
--20
0
20
40
60
80
100
120
140
160
2.0
Ambient temperature, Ta – ˚C
(0.8)
SANYO : SIP13H
No.A0494-2/8
LA42102
Block Diagram
Standby
5
V
CC
7
Input amplifier
+OUT1
12
IN1
2
Output amplifier
Ri=
30kΩ
11 -OUT1
PWR
MUTE
6
3
V
CC/ground shorting protection circuit
Load shorting protection circuit
Thermal protection circuit
10
GND
PRE
GND
+OUT2
-OUT2
8
9
4
IN2
Output amplifier
Ri=
30kΩ
Input amplifier
1
Ripple
Filter
Test Circuit
LA42102
Ripple
Filter
PRE
PWR
+OUT2 -OUT2 GND -OUT1 +OUT1 N.C.
IN1
2
GND
IN2
STBY MUTE
V
CC
1
3
4
5
6
7
8
9
10
11
12
13
C4
C5
C3
+
10µF
1000µF
47µF
/10V
/25V
R
C8
R
L
/25V
C1
C2
L
4.7µF
4.7µF
*
*
C9
C7
C6
+
+
R1
15kΩ
0.1µF 0.1µF
0.1µF 0.1µF
R3
2.2Ω
/10V
/10V
R4
2.2Ω
R5
2.2Ω
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
C4, R1 : Capacitor and resistor for mute. C4 is necessary even when the mute function is not used.
C5 : Power capacitor.
: Capacitor for starting time of the ripple filter and amplifier, for which 47µF is recommended.
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 V application voltage so that the pin 6 voltage becomes. 1.7V or more.
M
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
Mute
anti-electrostatic diode, allowing the current to flow through the
diode when the potential of V
pin 6.
7 pin decreases below that of
V
CC
CC
R1
C4
2kΩ
V
6
M
+
20kΩ
10µF
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
0 to 0.5
Amplifier
OFF
Standby
ON
V
CC
2.5 to 15
ON
OFF
2V
BE
R
STB
15kΩ
To suppress the inrush current to pin 5 when the V
STB
application voltage is high, insert the control resistor (R
V
5
S
).
STB
30kΩ
1.5kΩ
Example : Tosuppress the pin 5 inrush current to 500µA or less
Applied voltage (V
) -2V (About 1.4V)
STB BE
500µA
R
STB
=
-15kΩ
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 V pin 7 decreases below that of pin 5.
CC
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
I
– V
CC
P
– V
O CC
CCO
120
100
80
20
18
R
= open
THD = 10%
L
Rg = 0Ω
R = 8Ω
L
Rg = 600Ω
f = 1kHz
16
14
12
10
8
60
40
6
4
20
0
2
0
4
8
12
16
18
8
10
12
14
16
18
Supply voltage, V
CC
THD – P (ch1)
O
– V
Supply voltage, V – V
CC
THD – P (ch2)
O
1.5
7
5
1.5
7
5
V
= 14V
V
= 14V
CC
CC
= 8Ω
R
R = 8Ω
L
L
Rg = 600Ω
Rg = 600Ω
3
2
3
2
0.1
7
5
0.1
7
5
3
2
3
2
10kHz
10kHz
0.1
7
5
0.1
7
5
1kHz
1kHz
3
2
3
2
100Hz
100Hz
0.01
0.01
0.1
2
3
5
7
1
2
3
5
7
2
3
5
7
2
3
5
7
2
3
5
7
2
3
2
2
5
7
0.1
10
100
1
10
100
Output power, P – W
O
Response – f
Output power, P – W
O
THD – f
0.5
10
7
5
V
R
= 14V
CC
= 8Ω
0
L
Rg = 600Ω
3
2
P
= 1W
–
0.5
O
ch2
ch1
–
–
–
–
–
1.0
1.5
2.0
2.5
3.0
0.1
7
5
3
2
0.1
7
5
ch2
–
V
L
= 14V
3.5
CC
3
2
R
= 8Ω
ch1
–
–
Rg = 600Ω
4.0
4.5
V
= 0dBm (f = 1kHz)
O
2
0.01
3
5 7
2
3
5 7
2
3
5 7
2
3
5 7
100k
2
3
5 7
2
3
5 7
2
3
5 7
3
5 7
100k
10
100
1k
10k
10
100
1k
10k
Frequency, f – Hz
Frequency, f – Hz
V
– Rg
CHSep. – f
NO
0
0.5
V
= 14V
V
= 14V
CC
= 8Ω
CC
R
R = 8Ω
L
L
–
Rg = 10kΩ
BPF = 20Hz to 20kHz
10
V
= 0dBm
O
0.4
0.3
0.2
–
–
–
–
20
30
40
50
ch2
ch1
0.1
0
CH2→1
CH1→2
–
–
60
70
2
3
5
7
2
3
5
7
2
3
5
7
2
3
5
7
2
3
5
7
2
3
5
7
2
3
5
7
3
5 7
100k
10
100
1k
10k
100k
10
100
1k
10k
Resistance for signal generation, Rg – Ω
Frequency, f – Hz
No.A0494-6/8
LA42102
SVRR – fr
SVRR – V
CC
0
0
V
L
= 14V
R = 8Ω
L
CC
= 8Ω
R
Rg = 0
10 fR = 100Hz
R = 0dBm
–
–
10 Rg = 0
R = 0dBm
V
CC
CV
V
CC
CV
(CV ) = 1µF
(CV ) = 1µF
CC
CC
CC
CC
–
–
–
–
–
–
–
–
20
30
40
50
20
30
40
50
ch2
ch1
ch2
ch1
–
–
–
–
60
70
60
70
2
3
5
7
2
3
5
7
2
3
5
7
2
3
5 7
100k
8
12
16
20
10
100
1k
10k
Ripple frequency, fr – Hz
Mute – MUTE ATT
Supply voltage, V
– V
R
SVRR – VCC
CC
10
0
0
10
20
30
40
50
V
R
= 14V
CC
ch1 and ch2 is similar
= 8Ω
L
Rg = 0
–
–
–
–
–
–
–
–
10
20
30
fR = 100Hz
CV
(CV ) = 1µF
CC
CC
SVRR = 20log (V /V R)
O
CC
–
–
–
–
–
–
40
50
60
70
80
90
ch2
ch1
V
= 14V
CC
R
= 8Ω
L
Rg = 600Ω
–
–
60
70
f = 1kHz
V
= 1Vrms (VMUTE = 0V)
O
BPF = 20Hz to 20kHz
–
100
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
0
0.5
1
1.5
2
Mute – V
V
R– Vrms
CC
Pd – P
O
12
9
V
= 14V
CC
R
= 8Ω
L
Rg = 600Ω
f = 1kHz
Pd = V ×I -P
CC CC
O
6
3
0
2
3
5
7
1
2
3
5
7
0.1
10
Output power, P – W
O
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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