一 224 一
.....
低频功率放大器
三三字羊
根辑
音频功牟放大器
RL斗.....80 (2迢迢)
极限参数( TA=25"C)
电源也压
VCC~二 llV (有信号)
VCC~二 15V (元信号)
2. 捆， 2 通过
RL=80 (BTL)
功耗
PD~4.0W
(带 P 板)
坏 1患温度
T A=-20......75 C
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VCC=9.0V
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•
VCC=9.0V , R L=4.00 (2 通过)
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.方块囡
·特征
电源也压
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， 3.5W， 2 迢迢
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V CC=9. 0...... 24V
RL=8.00
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Rg=6000 , f =1. 0凶z
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(TA=25 C)
0
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输出也 i成
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.方块圈
LA4192
Ordering number : EN1321G
Monolithic Linear IC
LA4261
For Home Stereos And Music Centers
3.5W 2-Channel AF Power Amplifier
Overview
The LA4261 is a 3.5W 2-channel AF power amplifier, especially suited for use in home stereos and music centers.
Features
• Minimum number of external parts required (No input capacitor, bootstrap capacitor required).
• High output: 3.5W typ.×2.
• Soft clip, causing little harmonic disturbance to radios (See page 8).
• Small pop noise at the time of power switch ON/OFF (See page 8).
• Built-in protector against abnormal modes (Thermal shutdown, overvoltage).
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VCC max
25
V
Maximum output current
IOP
1 channel
2.0
A
Allowable power dissipation
Pd max
With heat sink (see Pd − Ta characteristics)
7.5
W
Operating temperature
Topr
−20 to +75
°C
Storage temperature
Tstg
−40 to +150
°C
Operating Conditions at Ta = 25°C
Parameter
Symbol
Recommended supply voltage
VCC
Recommended load resistance
RL
Operating supply voltage range
VCC op
Conditions
Ratings
Unit
16
V
8
Ω
9 to 24
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.
82008 MS JK/22897HA(II)/71093TS/2126KI/8064KI/8053KI,MT No.1321 -1/9
LA4261
Electrical Characteristics at Ta = 25°C, VCC = 16V, RL = 8Ω, f = 1kHz, Rg = 600Ω, (circuit 1)
Unit
Ratings
Parameter
Symbol
Quiescent current
ICCO
Voltage gain
VG
Conditions
min
typ
max
46
62
mA
48
50
52
dB
3.0
3.5
Output power
PO
THD = 10%
Total harmonic distortion
THD
PO = 0.5W
Output noise voltage
VNO
Rg = 10kΩ, BW = 20Hz to 20kHz
Ripple rejection ratio
Rr
Rg = 0, Vr = 500mV
40
50
Crosstalk
CT
Rg = 10kΩ
40
55
Voltage gain difference
ΔVG
W
0.3
1.0
%
0.65
1.5
mV
dB
dB
1.5
dB
Package Dimensions
unit : mm (typ)
3018B
16.7 max
13.5
3.5
(8.4)
0.5
1.6 min
1.3
0.45
1.6
5
3
2.54
m
(1.17)
10
6
50
4
×5
0
×1
.5
mm
3
2.5
Al heat sink Tightening
torque 39 N cm
Silicon grease applied
Thermal resistance
between junction
and outside air
θj-c 10°C/W
5m
1.
0×
1
7
12
0×
3.6
7.5
Pd max -- Ta
Infinite heat sink
10
(R3.6)
Allowable power dissipation, Pd max -- W
8
25.75 max
25.2
24.0
12.0
3
No heat sink
2
1
0
-20
0
20
40
60
80
100
120
140
160
Ambient temperature, Ta -- °C
SANYO : SIP10FD
Block Diagram
No.1321-2/9
LA4261
θf -- Sf
3
Thermal resistance of heat sink, θf -- °C/W
Al heat sink t = 1.5 mm
2
10
7
5
3
2
1.0
2
10
3
5
7 100
2
3
5
7 1000
2
Area of heat sink, Sf -- cm2
Sample Application Circuit 1:
Sample Application Circuit 2:
Recommended Circuit
Circuit with minimum number of
external parts
C10 100μF/25V
+
C1 100μF/6.3V
1
+
+
C2
330pF
9
R1
100kΩ
5
R2
100kΩ
Input 1
* C8
10 0.1μF
RL
8Ω
R4 3.3Ω
VR
30kΩ
Input 2
2
VR
30kΩ
5
LA4261
input 2
C3
330pF
VCC
C7 470μF/16V
output 1
+
3
2
input 1
C9 470μF/25V
6
+
8
7 * polyester film capacitor
C5 470μF/16V
output 2
4
* C6
0.1μF
C4
100μF/6.3V
LA4261
+
RL
8Ω
R3
3.3Ω
Sample Printed Circuit Pattern
INPUT 1
GND
10 9 8 7 6 5 4 3 2 1
* 0.1μF
3.3Ω
470μF +
/35V
100μF
+ /35V
0.1μF *
100μF
/6.3V
VCC
470μF
/25V
OUTPUT 1
100kΩ
GND
100μF
/6.3V
3.3Ω
+
330pF
+
+
100kΩ
330pF
+
INPUT 2
470μF
/25V
OUTPUT 2
* polyester film capacitor
No.1321-3/9
LA4261
Description of External Parts
C1, C4
(100μF)
C2, C3
(330pF)
C5, C7
(470μF)
C6, C8
(0.1μF polyester
film capacitor)
C9
(470μF)
C10
(100μF)
R1, R2
(100kΩ)
R3, R4
(3.3Ω)
: Feedback capacitor.
Decreasing the capacitance value lowers the low frequency response. Increasing the capacitance
value makes the starting time later.
: Input short capacitor.
Reduces the high frequency noise when the input impedance is increased. Not required when the
input impedance is decreased.
: Output capacitor.
Decreasing the capacitance value causes insufficient power at low frequencies.
: Oscillation blocking capacitor.
Decreasing the capacitance value causes oscillation to occur easily. Use a polyester film
capacitor that is good in high frequency response and temperature characteristic. The use of an
electrolytic capacitor may cause oscillation to occur at low temperatures.
: Power capacitor.
Decreasing the capacitance value causes ripple to occur. Locating at a distance from the IC or
removing this capacitor may cause oscillation to occur.
: Ripple filter capacitor.
Decreasing the capacitance value excessively or removing this capacitor causes ripple to occur.
However, increasing the capacitance value does not always cause ripple to be reduced.
Decreasing the capacitance value makes the starting time earlier.
: Input bias resistor.
Determines the bias (bias of GND potential) to be applied to the input pin and the input
impedance. Not required if variable resistors are used.
: Resistor connected in series with oscillation blocking capacitor.
Prevents phase shift attributable to the oscillation blocking capacitor so that oscillation is hard to
occur.
Note for Changing Voltage Gain
C1
Basically, the voltage gain can be reduced by adding external resistors (RNF)
in series with feedback capacitors C1, C4. However, it should be noted that
since there is no phase compensation pin the frequency response is extended
and oscillation is liable to occur when the voltage gain is reduced. The voltage
gain must not be reduced to be less than 30dB.
1
RNF
2
LA4261
5
6
C4
RNF
External Muting
If external muting is required, make the circuit as shown right. In this
case, the attack time, recovery time, and pop noise are similar to those
which occur at the time of power switch ON/OFF.
VCC
220Ω
+
muting SW
100μF
100μF
+
3
1
2
9
10
LA4261
5
+
6
100μF
No.1321-4/9
LA4261
Proper Cares in Using IC
• Maximum ratings
If the IC is used in the vicinity of the maximum ratings, even a slight variation in conditions may cause the maximum
ratings to be exceeded, thereby leading to breakdown. Allow an ample margin of variation for supply voltage, etc.
and use the IC in the range where the maximum ratings are not exceeded.
• Pin-to-pin short
If power is applied when the space between pins is shorted, breakdown or deterioration may occur. When mounting
the IC on the board or applying power, make sure that the space between pins is not shorted with solder, etc.
• When using in radios, allow a sufficient space between IC and bar antenna.
• Printed circuit pattern
When designing the printed circuit pattern, make the power supply, output, and ground lines thick and short and
arrange the pattern and parts so that no feedback loop is formed between input and output. Place power capacitor C9,
oscillation blocking capacitors C6, C8 as close to IC pins as possible to prevent oscillation from occurring. Refer to
the sample printed circuit pattern.
No.1321-5/9
LA4261
PO -- VCC
8
7
VCC = 16V
RL = 8Ω
2
6
T
-8
1
0
0
2
4
6
8
10
12
14
F
4=
0μ
-6
47μF
2
-4
10
%
10
=
5%
HD
3
-2
,C
4
C1
5
220
μF
0
Response -- dB
Output power, PO -- W
f Response
4
f = 1kHz
RL = 8Ω
16
18
20
22
24
-10
26
2 3
5
2 3
100
Supply voltage, VCC -- V
ICC -- PO
3
5
3
2
5
2
7
5
7 1.0
3
2
5
7
V CC
5
3
10
5
7 0.1
2
Output power, PO -- W
= 10
%
3
5
7 1.0
2
3
5
7 10
2
Output power, PO -- W
ICCO − VCC
60
THD
2V
=2
3
1.0
3
5 100k
f = kHz
RL = 8Ω
7
7
2
2 3
10k
10
100
7 0.1
5
2
Power dissipation, Pd -- W
7
5
3
V
20
18V
16V
14V
Current dissipation, ICC -- mA
1000
3
2
1k
Pd -- PO
3
VCC = 16V
RL = 8Ω
f = 1kHz
2
5
5
Frequency, f -- Hz
Vpin -- VCC
36
Quiescent
Quiescent
50
28
Pin voltage, Vpin -- V
Quiescent current, ICCO -- mA
32
40
30
20
24
20
Pin
16
Pin 1,2,4,
6,7,10
3
12
Pin
8
7,10
10
Pin 2,4
4
Pin 1,6
0
0
4
8
12
16
20
24
32
28
0
0
40
36
4
8
Supply voltage, VCC -- V
VNO -- Rg
VCC = 16V
RL = 8Ω
FILTER 20Hz to 20kHz
(DIN AUDIO)
Output noise voltage, VNO -- mV
2
10
7
5
3
2
1.0
ER
FILT
7
5
2
OUT
N
ER I
FILT
3
2 3
5
7 1k
2
3
5
16
20
24
28
32
Vro -- VCC
100
7
5
Output ripple voltage, Vro -- mV
3
12
Supply voltage (pin 9), VCC -- V
RL = 8Ω
Rg = 0
fR = 100Hz
3
2
VR = 1V
10
7
5
3
0.5V
2
0.3V
1.0
7
5
3
7 10k
2
3
5
Signal source resistance, Rg -- Ω
7 100k
2
3
2
0
4
8
12
16
20
24
28
Supply voltage, VCC -- V
No.1321-6/9
LA4261
Vro -- Vr
5
2
VCC = 16V
RL = 8Ω
Rg = 10kΩ
VO = 0dBm
70
Crosstalk, CT -- dB
Output ripple voltage, Vro -- mV
3
CT -- f
80
VCC = 16V
Rg = 0
fR = 100Hz
10
7
5
3
2
CH2
60
CH1
CH
1
CH
2
50
40
1.0
30
7
5
3
3
5
7
2
0.1
3
5
7
2
1.0
3
20
5
2 3
5
2
100
3
Ripple voltage, Vr -- V
ICCO -- Ta
70
VCC = 25
V 22V
50
40
14V
16V
30
20
5
2
10k
3
5
100k
VCC = 16V
RL = 8Ω
f = 1kHz
40
30
20
10
10
0
-40
-30
-20
-10
0
10
20
30
40
50
60
Ambient temperature, Ta -- °C
70
0
80
2
VCC = 16V
RL = 8Ω
0
VG
=
35 d
B
dB
40
B
45d
B
50d
-2
-4
-6
-8
2 3
5
100
2 3
5
2 3
1k
5
10k
2
3
5
Total harmonic distortion, THD -- %
f Response
4
Response -- dB
3
50
Voltage gain, VG -- dB
Quiescent current, ICCO -- mA
60
2
3
5 7 10
2
5 7 1k
2
3
VCC = 16V
RL = 8Ω
PO = 0.5W
2
1.0
7
5
dB
3
=
VG
2
0.1
7
5
45dB
40dB
3
35dB
2
3
5
2
100
3
5
50
1k
2
3
5
10k
2 3
5
100k
VNO -- VG
3
2W
3
5W
P
O=
0.
7
5
3
VCC = 16V
RL = 8Ω
FILTER 20Hz to 20kHz
(DIN AUDIO)
2
Output noise voltage, VNO -- mV
5
2
20
3
Frequency, f -- Hz
7
0.1
2
3
100k
VCC = 16V
RL = 8Ω
f = 1kHz
2
5 7 100
THD -- f
10
7
5
2
THD -- VG
1.0
3
External resistance, RNF -- Ω
Frequency, f -- Hz
Total harmonic distortion, THD -- %
2
1k
VG -- RNF
60
Quiescent
-10
5
Frequency, f -- Hz
1.0
7
0kΩ
0Ω
5
3
FILTE
T
2
0.1
=1
kΩ
0Ω
10
7
5
Rg
R OU
N
ER I
FILT
3
30
40
Voltage gain, VG -- dB
50
60
2
15
20
25
30
35
40
45
50
55
60
Voltage gain, VG -- dB
No.1321-7/9
LA4261
Vrp -- VG
10
VCC = 16V
RL = 8Ω
Rg = 0
fR = 100Hz
Output ripple voltage, Vrp -- mV
7
5
3
VR = 0.5V
2
1.0
7
5
0.3V
3
2
10
20
30
40
50
60
Voltage gain, VG -- dB
Pop Noise Waveform at The Time of Power Switch ON
(VCC = 16V, RL = 8Ω, quiescent)
Pop Noise Waveform at The Time of Power Switch OFF
(VCC = 16V, RL = 8Ω, quiescent)
1
1
Pop noise waveform
0
-1
-1
e
point ris
Middle
rm
wavefo
8
V/div
V/div
Pop noise waveform
0
8
6
6
4
4
2
2
s/div
0
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
f = 1kHz Clip waveform
(VCC = 16V, RL = 8Ω, THD = 5%)
1.6
0
Middle point fall
waveform
s/div
0
0.2
0.4
0.6
0.8
1.0
f = 10kHz Clip waveform
(VCC = 16V, RL = 8Ω, THD = 5%)
No.1321-8/9
LA4261
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 August, 2008. Specifications and information herein are subject to
change without notice.
PS No.1321-9/9
Ordering number: EN1321E
Monolithic Linear IC
LA4261
3.5 W 2-Channel AF Power Amplifier for
Home Stereos and Music Centers
Features
Package Dimensions
. Minimum number of external parts required (No input
bootstrap capacitor required).
. capacitor,
High output: 3.5 W typ. ×2.
. Soft clip, causing little harmonic disturbance to radios
page 8).
. (See
Small pop noise at the time of power switch ON/OFF
page 8).
. (See
Built-in protector against abnormal modes (Thermal
3018A-SIP10F
unit : mm
[LA4261]
shutdown, overvoltage).
SANYO : SIP10F
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Symbol
Maximum supply voltage
VCCmax
Maximum output current
IOP
Allowable power dissipation
Pd max
Conditions
Ratings
Unit
25
V
1 channel
2.0
A
With heat sink
(see Pd – Ta characteristics)
7.5
W
Operating temperature
Topr
–20 to +75
°C
Storage temperature
Tstg
–40 to +150
°C
Ratings
Unit
Operating Conditions at Ta = 25°C
parameter
Symbol
Conditions
Recommended supply voltage
VCC
16
V
Recommended load resistance
RL
8
Ω
Operating supply voltage range
VCC op
9 to 24
V
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
22897HA(II)/71093TS/2126KI/8064KI/8053KI,MT No.1321-1/8
LA4261
Operating Characteristics at Ta = 25°C, VCC = 16 V, RL = 8 Ω, f = 1 kHz, Rg = 600 Ω, (circuit 1)
Parameter
Quiescent current
Symbol
Conditions
min
ICCO
Voltage gain
VG
Output power
PO
THD = 10%
Total harmonic distortion
THD
PO = 0.5 W
Output noise voltage
VNO
Rg = 10 kΩ, BW = 20 Hz to 20 kHz
typ
max
Unit
46
62
mA
48
50
52
dB
3.0
3.5
W
0.3
1.0
%
0.65
1.5
mV
Ripple rejection ratio
Rr
Rg = 0, Vr = 500 mV
40
50
dB
Crosstalk
CT
Rg = 10 kΩ
40
55
dB
Voltage gain difference
∆VG
1.5
dB
Pd max – Ta
Infinite heat sink
Al heat sink
Tightening torque 39 Nccm
Silicon grease applied
Thermal resistance
between junction and
outside air θj-c 10°C/W
2.5
No heat sink
Ambient temperature, Ta – °C
Thermal resistance of heat sink, θf – °C/W
Allowable power dissipation, Pd max – W
Equivalent Circuit Block Diagram
θf – Sf
Al heat sink t = 1.5 mm
Area of heat sink, Sf – cm2
No.1321-2/8
LA4261
Sample Application Circuit 1:
Sample Application Circuit 2:
Recommended Circuit
Circuit with minimum number of external
parts
Unit (resistance: Ω, capacitance: F)
Sample Printed Circuit Pattern
Unit (resistance: Ω, capacitance: F)
Description of External Parts
C1, C4
100 µF
Feedback capacitor
Decreasing the capacitance value lowers the low frequency response. Increasing the
capacitance value makes the starting time later.
C2, C3
330 pF
Input short capacitor
Reduces the high frequency noise when the input impedance is increased. Not required
when the input impedance is decreased.
C5, C7
470 µF
Output capacitor
Decreasing the capacitance value causes insufficient power at low frequencies.
C6, C8
0.1 µF
polyester film
capacitor
Oscillation blocking capacitor
Decreasing the capacitance value causes oscillation to occur easily. Use a polyester film
capacitor that is good in high frequency response and temperature characteristic. The use
of an electrolytic capacitor may cause oscillation to occur at low temperatures.
C9
470 µF
Power capacitor
Decreasing the capacitance value causes ripple to occur. Locating at a distance from the
IC or removing this capacitor may cause oscillation to occur.
C10
100 µF
Ripple filter capacitor
Decreasing the capacitance value excessively or removing this capacitor causes ripple to
occur. However, increasing the capacitance value does not always cause ripple to be
reduced. Decreasing the capacitance value makes the starting time earlier.
R1, R2
100 kΩ
Input bias resistor
Determines the bias (bias of GND potential) to be applied to the input pin and the input
impedance. Not required if variable resistors are used.
R3, R4
3.3 Ω
Resistor connected in series with oscillation blocking capacitor.
Prevents phase shift attributable to the oscillation blocking capacitor so that oscillation is
hard to occur.
No.1321-3/8
LA4261
Note for Changing Voltage Gain
Basically, the voltage gain can be reduced by adding external
resistors (RNF) in series with feedback capacitors C1, C4.
However, it should be noted that since there is no phase
compensation pin the frequency response is extended and
oscillation is liable to occur when the voltage gain is reduced.
The voltage gain must not be reduced to be less than 30 dB.
External Muting
If external muting is required, make the circuit as shown right.
In this case, the attack time, recovery time, and pop noise are
similar to those which occur at the time of power switch
ON/OFF.
Unit (resistance: Ω, capacitance: F)
Proper Cares in Using IC
. Maximum ratings
If the IC is used in the vicinity of the maximum ratings, even a slight variation in conditions may cause the maximum ratings to
be exceeded, thereby leading to breakdown. Allow an ample margin of variation for supply voltage, etc. and use the IC in the
range where the maximum ratings are not exceeded.
. Pin-to-pin short
If power is applied when the space between pins is shorted, breakdown or deterioration may occur. When mounting the IC on
the board or applying power, make sure that the space between pins is not shorted with solder, etc.
. When using in radios, allow a sufficient space between IC and bar antenna.
. Printed circuit pattern
When designing the printed circuit pattern, make the power supply, output, and ground lines thick and short and arrange the
pattern and parts so that no feedback loop is formed between input and output. Place power capacitor C9, oscillation blocking
capacitors C6, C8 as close to IC pins as possible to prevent oscillation from occurring. Refer to the sample printed circuit
pattern.
PO – VIN
Output power, PO – W
Total harmonic distortion, THD – %
THD – PO
Input voltage, VIN – mV
Output power, PO – W
No.1321-4/8
LA4261
THD – f
Output power, PO – W
Total harmonic distortion, THD – %
PO – f
Frequency, f – Hz
f Response
Response – dB
Output power, PO – W
Frequency, f – Hz
PO – VCC
Frequency, f – Hz
Pd – PO
Power dissipation, Pd – W
Current dissipation, ICC – mA
Supply voltage, VCC – V
ICC – PO
Output power, PO – W
ICCO – VCC
Output power, PO – W
Vpin – VCC
Quiescent
Pin voltage, Vpin – V
Quiescent current, ICCO – mA
Quiescent
Pin 3
Pin 1, 2, 4,
6, 7, 10
Pin 7, 10
Pin 2, 4
Pin 1, 6
Supply voltage, VCC – V
Supply voltage (pin 9), VCC – V
No.1321-5/8
LA4261
Vro – VCC
FILTER 20 Hz to 20 kHz
Output ripple voltage, Vro – mV
Output noise voltage, VNO – mV
VNO – Rg
Supply voltage, VCC – V
CT – f
Crosstalk, CT – dB
Output ripple voltage, Vro – mV
Signal source resistance, Rg – Ω
Vro – Vr
Ripple voltage, Vr – V
ICCO – Ta
Frequency, f – Hz
VG – RNF
Voltage gain, VG – dB
Quiescent current, ICCO – mA
Quiescent
External resistance, RNF – Ω
Ambient temperature, Ta – °C
f Response
Response – dB
Total harmonic distortion, THD – %
THD – f
Frequency, f – Hz
Frequency, f – Hz
No.1321-6/8
LA4261
VNO – VG
Output noise voltage, VNO – mV
Total harmonic distortion, THD – %
THD – VG
Voltage gain, VG – dB
Output ripple voltage, Vrp – mV
Voltage gain, VG – dB
Vrp – VG
FILTER 20 Hz to 20 kHz
Voltage gain, VG – dB
No.1321-7/8
LA4261
Pop Noise Waveform at The Time of Power Switch ON
(VCC = 16 V, RL = 8 Ω, quiescent)
Pop noise waveform
Pop Noise Waveform at The Time of Power Switch OFF
(VCC = 16 V, RL = 8 Ω, quiescent)
Pop noise waveform
Middle point rise
waveform
Middle point fall
waveform
f = 1 kHz Clip waveform
(VCC = 16 V, RL = 8 Ω, THD = 5%)
f = 10 kHz Clip waveform
(VCC = 16 V, RL = 8 Ω, THD = 5%)
No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment,
nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or
indirectly cause injury, death or property loss.
Anyone purchasing any products described or contained herein for an above-mentioned use shall:
1 Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors
and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and
expenses associated with such use:
2 Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO
ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally.
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume
production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use
or any infringements of intellectual property rights or other rights of third parties.
This catalog provides information as of February 1997. Specifications and information herein are subject to change without notice.
No.1321-8/8