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Ordering number : ENA0972
LA4814V
Overview
Monolithic Linear IC
2-Channel Power Amplifier
The LA4814V buili-in the power amplifier circuit capable of low-voltage (2.7V and up) operation and has additionally a standby function to reduce the current drain. It is a power amplifier IC optimal for speaker drive used in battery-driven portable equipment and other such products.
Applications
Mini radio cassette players/recorders, portable radios, transceivers and other portable audio devices
Features
* On-chip 2-channel power amplifier Output power 1 = 350mW typ. (VCC = 5.0V, RL = 4, THD = 10%) Output power 2 = 150mW typ. (VCC = 3.6V, RL = 4, THD = 10%) * Enables monaural BTL output system by changing externally connected components Output power 3 = 700mW typ. (VCC = 5.0V, RL = 8, THD = 10%) Output power 4 = 320mW typ. (VCC = 3.6V, RL = 8, THD = 10%) * Low-voltage operation possible VCC =2.7V and up * Standby function Current drain at standby = 0.1A typ. (VCC = 5V) * Voltage gain setting possible Voltage gain = 3 to 20dB * Second amplifier stop control function Reducing the pop noise at startup (in BTL mode)
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.
N2107 MS PC 20071010-S00010 No.A0972-1/17
LA4814V
Specifications
Maximum Ratings at Ta = 25C
Parameter Maximum supply voltage Allowable power dissipation Maximum junction temperature Operating temperature Storage temperature Symbol VCC max Pd max Tj max Topr Tstg * Conditions Ratings 8 1.85 150 -40 to +85 -40 to +150 Unit V W C C C
* Mounted on SANYO evaluation board : Double-sided board with dimensions of 60mm x 60mm x 1.6mm
Operating Conditions at Ta = 25C
Parameter Recommended supply voltage Recommended load resistance Symbol VCC RL Single ended mode BTL mode Operating supply voltage range VCC op Single ended mode BTL mode, RL = 8 to 32 BTL mode, RL = 6 * Determine the supply voltage to be used with due consideration of allowable power dissipation. Conditions Ratings 5 4 to 32 6 to 32 2.7 to 7 2.7 to 7 2.7 to 5.5 Unit V V V V
Electrical Characteristics at Ta = 25C, VCC = 5.0V, RL = 4, fin = 1kHz
Parameter Quiescent current drain Standby current drain Maximum output power BTL maximum output power Voltage gain Voltage gain use range Channel balance Total harmonic distortion Output noise voltage Channel separation Ripple rejection ratio Output DC offset voltage Reference voltage Pin 8 control HIGH voltage Pin 8 control LOW voltage Pin 9 control HIGH voltage Pin 9 control LOW voltage Symbol ICCOP ISTBY POMAX POMXB VG VGU CHB THD VNOUT CHSEP SVRR VOF VREF V8H V8L V9H V9L (Power amplifier operation mode) (Power amplifier standby mode) (Second amplifier standby mode) (Second amplifier operation mode) 1.6 0 1.6 0 VIN = -30dBV VIN = -30dBV Rg = 620, 20 to 20kHz VOUT = -10dBV, 20 to 20kHz Rg = 620, fr = 100Hz, Vr = -20dBV Rg = 620, V3-V12, in BTL mode -30 -70 No signal No signal, V8 = Low THD = 10% BTL mode, RL = 8, THD = 10% VIN = -30dBV 8.2 3 -2 0 0.35 15 -81 53 0 2.2 VCC 0.3 VCC 0.3 30 220 Conditions Ratings min typ 8.6 0.1 350 700 9.7 11.2 20 2 1 50 max 15 10 Unit mA A mW mW dB dB dB % Vrms dBV dB mV V V V V V
No.A0972-2/17
LA4814V
Package Dimensions
unit : mm (typ) 3313
2.5
Pd max - Ta
SANYO evaluation board (double-sided) 60mmx60mmx1.6mm SANYO evaluation board (single-sided) 80mmx70mmx1.6mm
0.96
6.5 14 8
Allowable power dissipation, Pd max - W
2.0 1.85
1.5 1.15 1.0
4.4
6.4
1 1.3 (2.35) 0.65
7 0.22
0.5
0.15
0.5 0.35
0.60
Independent IC
0.18
1.5max
0 - 40
- 20
0
20
40
60
80
100
Ambient temperature, Ta - C
1.5
SANYO : HSSOP14(225mil)
Block Diagram
14 13 12 11 10 9 CNT 8 STBY BIAS VCC
0.1 (1.3)
OUT2
VCC
IN2
NC
NC
Radiator Fin
Power AMP-2 Power AMP-1
+ + -
OUT1
CONTROL
1
2
3
4
5
6
7
VREF
GND
IN1
NC
NC
NC
No.A0972-3/17
LA4814V
Pin Functions
Pin No. 1 2 3 12 Pin Name GND NC OUT1 OUT2 2.2 Power amplifier output pin 0 Pin Voltage VCC = 5V Ground pin Description Equivalent Circuit
VCC VCC
3 12
10k
GND
4 5 10 NC IN1 IN2 2.2 Input pin
VCC VCC 500
5 10
GND
6 7 NC VREF 2.2 Ripple filter pin (For connection of capacitor for filter)
VCC
VCC 100k 7 107k
100k
GND
8 STBY Standby pin Standby mode at 0V to 0.3V Operation mode at 1.6V to VCC
8
21k
1k 40k
3k
GND
9 CNT Second amplifier stop control pin Second amplifier operation at 0V to 0.3V Second amplifier stop at 1.6V to VCC
9
11k
10k 40k
10k
GND
11 13 14 NC NC VCC 5 Power supply pin
No.A0972-4/17
LA4814V
Cautions for Use
1.Input coupling capacitors (C1, C2) C1 and C2 are input coupling capacitors that are used to cut DC voltage. However, the input coupling capacitor C1 (C2) and input resistor R1 (R2) make up the high-pass filter, attenuating the bass frequency. Therefore, the capacitance value must be selected with due consideration of the cut-off frequency. The cut-off frequency is expressed by the following formula : fc = 1/2 x R1 x C1 (= 1/2 x R2 x C2) Note with care that this capacitance value affects the pop noise at startup. To increase this capacitance value, it is necessary to increase the capacitance value of pin 7 capacitor (C5) to soften the startup characteristics. 2.Pin 7 capacitor (C5) This capacitor C5 is designed for the ripple filter. Its purpose is to make up a low-pass filter with a 100k internal resistor for reducing the ripple component of the power supply and improve the ripple rejection ratio. Inside the IC, the startup characteristics of the pin 7 voltage are used to drive the automatic pop noise reduction circuit, and care must be taken with the pop noise when the C5 capacitance value is to be set lower. However, when the IC is used in BTL mode, the automatic pop noise reduction function mentioned above has no effect. Instead, a pop noise reduction method that utilizes the second amplifier control function is used so that the capacitance value must be determined while factoring in the ripple rejection ratio or startup time. Recommended capacitance value : Min. 22F (in 2-channel mode) 10F (in mono BTL mode) 3.Bypass capacitor (C7) The purpose of the bypass capacitor C7 is to reject the high-frequency components that cannot be rejected by the power supply capacitor (chemical capacitor C6). Place the capacitor as near to the IC as possible, and use a ceramic capacitor with excellent high-frequency characteristics. 4.Standby function The standby function serves to place the IC in standby mode to minimize the current drain. a) When using the standby function (when using microcomputer control) By applying the following voltages to the standby pin (pin 8), the mode changeover can be performed between standby and operation. Operation mode ... V8 1.6V Standby mode ... V8 0.3V However, set the resistance of resistor R5 inserted in series in such a way that the condition in the following formula is met. R5 24.6 x (Vstby - 1.6) k R5 The pin 8 inrush current is expressed by the following formula: 8 STBY Vstby V8 I8 = (40 x Vstby - 26.3)/(1+0.04 x R5) A Fig. 1 b) When not using the standby function (microcomputer control is not possible) By applying a voltage from the power supply (pin 14) to the standby pin (pin 8), the IC can be turned on without the control of the microcomputer when the power is turned on. In order to reduce the pop noise when the IC is turned off, it is recommended that resistor R5 be inserted as shown in Fig.2. The resistance value indicated below is recommended for the inserted resistor R5. VCC = 5.0V : R5 = 82k VCC = 3.6V : R5 = 47k VCC = 3.0V : R5 = 33k
VCC
14 VCC R5
8
STBY
Fig. 2
No.A0972-5/17
LA4814V
5.Second amplifier control function (only when BTL mode is used) The second amplifier control function is a function to reduce the startup pop-noise in BTL mode. The pop noise can be reduced by first turning on the IC while the second amplifier is stopped, then after the potential inside the IC gets stabilized, turning on the second amplifier. The values shown below are recommended for the control time.
C5 [F] Twu [ms] 2.2 200 3.3 250 4.7 300 10 500
* Twu : Time after releasing standby to second amplifier turn-on
a) When using microcomputer control The second amplifier can be controlled by applying the following voltages to pin 9. Second amplifier operation mode ... V9 0.3V Second amplifier stop mode ... V9 1.6V However, set the resistance value of the resistor R6 inserted in series in such a way that the condition in the following formula is met. R6 16.2 x (Vcnt - 1.6) k R6 The pin 9 injected current is expressed by the following formula : 9 CNT Vcnt I9 = (57.6 x Vcnt - 31.7)/(1+0.058 x R6) A V9 Fig. 3 b) When microcomputer control is not possible When the microcomputer cannot be used, the second amplifier can be controlled by adding the external components as shown in Fig. 4.
VCC
VCC (V) 5 R7 (k) R9 (k) C8 (F) 10 120 100 3.6 6.8 68 100 3 6.8 56 100
14 VCC R7 R9 9 CNT
+
C8
R8 100k
R5
8
STBY
Fig. 4 6.Shorting between pins When power is applied with pins left short-circuited, electrical deterioration or damage may result. Therefore, check before power application if pins are short-circuited with solder, etc. during mounting of IC. 7.Load shorting If the load is left short-circuited for a long period of time, electrical deterioration or damage may occur. Never allow the load to short-circuit. 8.Maximum rating When IC is used near the maximum rating, there is a possibility that the maximum rating may be exceeded even under the smallest change of conditions, resulting in failure. Take sufficient margin for variation of supply voltage and use IC within a range where the maximum rating will never be exceeded.
No.A0972-6/17
LA4814V
9.Turn-off transient response characteristics If the IC is turned off and then turned back on while there is a potential difference between the pin 7 (reference voltage, plus input pin) and pins 5 and 10 (minus input pins), a louder pop noise than the one normally generated when power is switched on will be emitted. Therefore, in order to minimize the turn-on pop noise, smoothen the discharge of the input and output capacitors, and bring the potential of pin 7 and pins 5 and 10 to approximately the same level, then turn on the IC. a) Single ended mode When the continuous changeover of mode between standby and operation is necessary, it is recommended to insert a resistor between the output pins (pins 3 and 12) and ground to accelerate the turn-off transient response characteristic. The value shown below is recommended for the resistor used for discharge. In order to reduce pop noise, it is recommended that time necessary for turning the IC back on is greater than the following value. Recommended discharge resistor : R = 4.7k (Recommended turn-on time : T = 600ms)
PWRSTBY STBYPWR
100ms/div
3
R3 33k
OUT1 10k
OUT:50mV/div,AC
4.7k
+
C3 470F
+ -
Vref
RL 4
5
IN1
7pin:1V/div,DC
R1 10k C1 0.22F
T
b) BTL mode When the continuous changeover of mode between standby and operation is performed, it is recommended that the second amplifier control function be used to reduce the turn-on pop noise. If this function is used, the pop noise level can be reduced regardless of the time taken for the IC to turn on after it is turned off. For details on the time taken for the second amplifier to turn on after the IC is turned on, refer to Section 5 "Second amplifier control function."
No.A0972-7/17
LA4814V
Application Circuit Example 1. (2-channel single ended mode)
SPEAKER 4
VCC IN2
C7 0.1F
C6 10F
C4 470F
+
+ 12
R4 33k 11 10
R2 10k 9 8
14
13
1
2
3 +
4
5
6 R1 10k C1 0.22F
7 +
C3 470F
SPEAKER 4
R3 33k
IN2
Application Circuit Example 2. (monaural BTL mode)
VCC +
C7 0.1F
C6 10F
R2 10k R4 10k
from CPU
from CPU
8 7 +
C5 22F
R5 10k
C2 0.22F
from CPU
14
13
12
11
10
9
SPEAKER 8
1
2
3
4 R3 33k
5
6 R1 10k C1 0.22F
R6 10k
IN
C5 10F
No.A0972-8/17
R5 10k
LA4814V
Test Circuit
4 out2 + 10F Power supply VCC = 5V 14 13 12 0.1F 470F + 33k
620 0.22F 10k 10k 11 10 9 8
S4 S2
S1
10k Power supply Vsby = 1.5V
1
2
3
4
5
6
7 + 22F
33k 10k 470F out1 4 620 + 0.22F S3
Signal source fin = 1kHz
No.A0972-9/17
LA4814V
General characteristics Single ended mode
10
Total harmonic distortion, THD - %
RL = OPEN Rg = 0
ICCO - VCC
100.0
RL = 4 f = 1kHz
THD - PO
V = V CC
2
Supply current, ICCO - mA
6
10.0 7 5 3 2 1.0 7 5 3 2 0.1 0.01 2 3 5
4
2
0
0
2
4
6
8
V CC =
7
3.6
8
V CC =5 V V CC =6 V
3 5 7 1
0.1
Supply voltage, VCC - V
100 7 5 3 2 10 7 5 3 2 1 7 5 3 2 0.1 0.01 2 3 5 7 0.1 2 3 5 7 1
Total harmonic distortion, THD - %
VCC = 5V f = 1kHz
THD - PO
Output power, PO - W
1.0 0.9
f = 1kHz THD = 10%
PO - VCC
6 R L= 8 R L= 4
0.8
R L= 1
Output power, PO - W
0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 2 3 4 5 6
3V
RL
=4
=8
RL
RL
= 16
7
Output power, PO - W
1
VCC = 5V f = 1kHz
Pd - PO
Supply voltage, VCC - V
1
Pd - PO
f = 1kHz RL = 4
V
V CC
Power dissipation, Pd - W
RL = 4
0.6
Power dissipation, Pd - W
0.8
0.8
CC
=
6V
0.6
=5
V
0.4
RL = 8 RL = 16
0.4
V CC
0.2
= 3.6V
0.2
V CC = 3V
0 0.01
2
3
5
7
0.1
2
3
5
7
1
0 0.01
2
3
5
7
0.1
2
3
5
7
1
Output power, PO - W
10 7
THD - f
Output power, PO - W
20
Vg - f
Total harmonic distortion, THD - %
5 3 2
VCC = 5V PO = 10mW Vg = 10.4dB
Voltage gain, Vg - dB
10
0
R L= 4 R L= 16 8
1 7 5 3 2 0.1 10
- 10
C1 =
- 20
C1
=0
.1 F
C1 0.2 2F = 1
.0 F
- 30
23
5 7 100
23
5 7 1k
23
5 7 10k
23
57 100k
- 40 10
VCC = 5V RL = 4 R1 = 10k C3 = 470F Vg = 10.4dB
5 7 100 23
R L=
23
Frequency, f - Hz
Frequency, f - Hz
5 7 1k
23
5 7 10k
23
57 100k
No.A0972-10/17
LA4814V
- 40
CH.Separation - f
Output noise voltage, VNO - Vrms
- 50
Channel separation - dBV
VCC = 5V RL = 4 Din Audio VOUT = -10dBV
20 18 16 14 12 10 8 6 4 2 0 2
RL = 4 Rg = 620 Din Audio
VNO - VCC
- 60
- 70
- 80
CH12 CH21
- 90
- 100 10
23
5 7100
23
5 7 1k
23
5 7 10k
23
57 100k
3
4
5
6
7
Frequency, f - Hz
Supply voltage ripple rejection, SVRR - dB Supply voltage ripple rejection, SVRR - dB
100 90 80 70 60 50 40 30 20 10 0 10 23 5 7 100 23 5 7 1k 23 5 7 10k 23 57 100k
SVRR - f
Supply voltage, VCC - V
70 60
SVRR - C5
VCC = 5V RL = 4 Rg = 620 C5 = 22F Vr = -20dBV
50
VCC = 5V RL = 4 Rg = 620 C5 = 22F Vr = -20dBV
40
30
20 10 0 1
2
3
5
7
- 70
Mutting attenation - VIN
VCC = 5V V8 = 0V RL = 4 f = 1kHz Vg = 10.4dB IC is standby mode
Frequency, f - Hz
- 70
Mutting attenation - f
VCC = 5V V8 = 0V RL = 4 VIN = -10dBV Vg = 10.4dB IC is standby mode
Capacitance, C5 - F
10
2
3
5
7
100
Mutting level - dBV
- 90
Mutting level - dBV
- 10 0 10 20
- 80
- 80
- 90
- 100
- 100
- 110 - 40
- 30
- 20
- 110 10
23
5 7 100
23
5 7 1k
23
5 7 10k
23
57 100k
Input voltage, VIN - dBV
Frequency, f - Hz
General characteristics BTL mode
100 7 5 3 2 10 7 5 3 2 1.0 7 5 3 2 0.1 0.01 2 3 5 7 0.1 2 3 57 1 2 3 5 7 10
Total harmonic distortion, THD - %
Total harmonic distortion, THD - %
f = 1kHz RL = 8 Vg = 16.4dB
THD - PO
100 7 5 3 2 10 7 5 3 2 1.0 7 5 3 2
VCC = 5V f = 1kHz Vg = 16.4dB
THD - PO
VC C = 3V VC C = 3. 6V
VCC = 5 V VCC = 6V
0.1 0.01
2
3
5 7 0.1
RL = 32 RL = 16 RL = 8 RL = 6
2 3 571 2
3
Output power, PO - W
Output power, PO - W
5 7 10
No.A0972-11/17
LA4814V
1.50
f = 1kHz THD = 10%
PO - VCC
RL = 8
Power dissipation, Pd - W
1
VCC = 5V f = 1kHz
Pd - PO
0.8
Output power, PO - W
1.00
RL
0.75
=
16
R L=
0.6
RL
0.50
RL
=
6
RL
=3
2
0.4
0.25
0.2
6 =1 RL 2 RL = 3
0
2
3
4
5
6
7 PCA02344
0 0.01
2
3
5 7 0.1
2
3
6
= 8
571
1.25
2
3
Supply voltage, VCC - V
1.2
Total harmonic distortion, THD - %
f = 1kHz RL = 8
Pd - PO
Output power, PO - W
1 7 5 3 2
5 7 10 PCA02345
THD - f
1
VCC = 5V RL = 8 PO = 10mW
Power dissipation, Pd - W
=
0.8
6V
0.6
VC
C
0.1 7 5 3 2
0.4
VCC
0.2
6V = 3.
=6 R L 8 = RL
V CC
2 3 5 7 0.1
= 3V
2 3 57 2 3 5 7 10 PCA02346
RL
0.01 10 23 5 7 100 23 5 7 1k
=3
2
23 5 7100k PCA02347
0 0.01
1
23
5 7 10k
Output power, PO - W
30
VNO - VCC
Frequency, f - Hz
25 20
Vg - f
Output noise voltage, VNO - Vrms
28 26 24 22 20 18 16 14 12 10 2
VCC = 5V RL = 8 Rg = 620 Din Audio
Voltage gain, Vg - dB
C1 = 1.0F
15 10
5 0 -5 - 10
C1
C1 =0 .22 =0 F .1 F
VCC = 5V RL = 8 VIN = -30dBV Vg = 16.4dB Rin = 10k
5 7 100 23 5 7 1k 23 5 7 10k 23
3
4
5
6
7 PCA02348
10
23
Supply voltage, VCC - V
Supply voltage ripple rejection, SVRR - dB
70
SVRR - f
Frequency, f - Hz
Supply voltage ripple rejection, SVRR - dB
70 60
SVRR - C5
60 50
VCC = 5V RL = 8 Vr = -20dBV C5 = 10F Rg = 620
50
VCC = 5V RL = 8 Vr = -20dBV fr = 100Hz Rg = 620
40
40 30
30
20 10 0 10
20 10 0 1
23
5 7 100
23
5 7 1k
23
5 7 10k
23
Frequency, f - Hz
57 100k PCA02350
2
3
5
7
Capacitance, C5 - F
10
2
3
No.A0972-12/17
R L= 16
57 100k PCA02349 5 7 100 PCA02351
V =5
V CC
LA4814V
- 50
Mutting level - dBV
- 70
Mutting level - dBV
- 60
VCC = 5V V9 = 1.6V RL = 8 f = 1kHz Vg = 16.4dB
Mutting attenation - VIN
- 50
Mutting attenation - f
VCC = 5V V9 = 1.6V RL = 8 VIN = 10dBV Vg = 16.4dB
- 60
- 70
- 80
- 80
- 90 - 40
second amplifier is shut down mode
- 30 - 20 - 10 0
- 90 10
second amplifier is shut down mode
23 5 7 100 23 5 7 1k 23 5 7 10k 23 5 7100k
- 10 - 20 - 30 - 40 - 50 - 60 - 70 - 80
Mutting level - dBV
Mutting level - dBV
VCC = 5V V8 = 0V RL = 8 f = 1kHz Vg = 16.4dB IC is standby mode
Mutting attenation - VIN
out 1-g nd
Input voltage, VIN - dBV
- 10 - 20 - 30 - 40 - 50 - 60 - 70 - 80 - 90 10
Mutting attenation - f
Frequency, f - Hz
out1-gnd
VCC = 5V V8 = 0V RL = 8 VIN = -10dBV Vg = 16.4dB IC is standby mode
1out
- 30 - 20 - 10 0
out
2
- 90 - 40
out1-out2
23 5 7 100 23 5 7 1k 23 5 7 10k 23 5 7100k
10
20
Input voltage, VIN - dBV
Frequency, f - Hz
Temperature characteristics
10
ICCO - Ta
VCC = 5V RL = OPEN Rg = 0
Reference voltage, VREF - V
4
VREF - Ta
VCC = 5V
Supply current, ICCO - mA
9.5
3
9
8.5
2
8
1
7.5
7 - 50
0
50
100
0 - 50
0
50
100
Ambient temperature, Ta - C
10 7
THD - Ta (SE)
Ambient temperature, Ta - C
10 7
THD - Ta (BTL)
Total harmonic distortion, THD - %
5 3 2
Total harmonic distortion, THD - %
VCC = 5V RL = 4 Vg = 10.4dB f = 1kHz VIN = -20dBV
5 3 2
VCC = 5V RL = 8 Vg = 16.4dB f = 1kHz VIN = -20dBV
1 7 5 3 2 0.1 - 50
1 7 5 3 2 0.1 - 50
0
50
100
0
50
100
Ambient temperature, Ta - C
Ambient temperature, Ta - C
No.A0972-13/17
LA4814V
1
0.8
VCC = 5V RL = 4 f = 1kHz THD = 10%
PO - Ta (SE)
1
PO - Ta (BTL)
0.8
Output power, PO - W
0.6
Output power, PO - W
0.6
0.4
0.4
0.2
0.2
0 - 50
0
50
100
0 - 50
VCC = 5V RL = 8 f = 1kHz THD = 10%
0 50 16
Ambient temperature, Ta - C
15
Vg - Ta (SE)
Ambient temperature, Ta - C
20
Vg - Ta (BTL)
Voltage gain, Vg - dB
Voltage gain, Vg - dB
10
VCC = 5V RL = 4 f = 1kHz Vg = 10.4dB VIN = -20dBV
15
5
10
0
5
-5 - 50
0
50
100
0 - 50
VCC = 5V RL = 8 f = 1kHz Vg = 16.4dB VIN = -20dBV
0 50 100
Ambient temperature, Ta - C
Ambient temperature, Ta - C
No.A0972-14/17
LA4814V
Pop noise
Single ended mode : Turn-on transient response characteristic
STBY PWR 200ms/div OUT : 50mV/div, AC
Single ended mode : Turn-off transient response characteristic
PWR STBY 1s/div OUT : 50mV/div, AC
7pin : 1V/div, DC
7pin : 1V/div, DC
BTL mode: Turn-on transient response characteristic
STBY PWR 100ms/div 3pin-12pin : 50mV/div, AC
BTL mode: Turn-off transient response characteristic
PWR STBY 500ms/div 3pin-12pin : 50mV/div, AC
7pin : 1V/div, DC
7pin : 1V/div, DC 9pin : 1V/div, DC
No.A0972-15/17
LA4814V
Evaluation board
1. Double-sided board Size : 60mmx60mmx1.6mm
Top Layer
Bottom Layer
2. Single-sided board Size : 70mmx80mmx1.6mm
Top Layer
Bottom Layer
No.A0972-16/17
LA4814V
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 November, 2007. Specifications and information herein are subject to change without notice. PS No.A0972-17/17

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