LA4814V Monolithic Linear 2-Channel Power Amplifier LA4

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LA4814V Monolithic Linear 2-Channel Power Amplifier LA4

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Ordering number ENA0972
LA4814V
Monolithic Linear
2-Channel Power Amplifier
LA4814V buili-in power amplifier circuit capable low-voltage (2.7V operation additionally standby function reduce current drain. power amplifier optimal speaker drive used battery-driven portable equipment other such products.
Applications
Mini radio cassette players/recorders, portable radios, transceivers other portable audio devices
Features
On-chip 2-channel power amplifier Output power 350mW typ. (VCC 5.0V, 10%) Output power 150mW typ. (VCC 3.6V, 10%) Enables monaural output system changing externally connected components Output power 700mW typ. (VCC 5.0V, 10%) Output power 320mW typ. (VCC 3.6V, 10%) Low-voltage operation possible =2.7V Standby function Current drain standby 0.1A typ. (VCC Voltage gain setting possible Voltage gain 20dB Second amplifier stop control function Reducing noise startup mode)
SANYO Semiconductor Co.,Ltd. products described contained herein are, with regard "standard application", intended general electronics equipment (home appliances, equipment, communication device, office equipment, industrial equipment etc.). products mentioned herein shall intended "special application" (medical equipment whose purpose sustain life, aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level reliability directly threaten human lives case failure malfunction product cause harm human bodies, shall they grant guarantee thereof. should intend products applications outside standard applications customer considering such and/or outside scope intended standard applications, please consult with prior intended use. there consultation inquiry before intended use, customer shall solely responsible use. Specifications SANYO Semiconductor Co.,Ltd. products described contained herein stipulate performance, characteristics, functions described products independent state, guarantees performance, characteristics, functions described products mounted customer' products equipment. verify symptoms states that cannot evaluated independent device, customer should always evaluate test devices mounted customer' products equipment.
N2107 20071010-S00010 No.A0972-1/17
LA4814V
Specifications
Maximum Ratings 25°C
Parameter Maximum supply voltage Allowable power dissipation Maximum junction temperature Operating temperature Storage temperature Symbol Topr Tstg Conditions Ratings 1.85 +150 Unit
Mounted SANYO evaluation board Double-sided board with dimensions 60mm 60mm 1.6mm
Operating Conditions 25°C
Parameter Recommended supply voltage Recommended load resistance Symbol Single ended mode mode Operating supply voltage range Single ended mode mode, mode, Determine supply voltage used with consideration allowable power dissipation. Conditions Ratings Unit
Electrical Characteristics 25°C, 5.0V, 1kHz
Parameter Quiescent current drain Standby current drain Maximum output power maximum output power Voltage gain Voltage gain range Channel balance Total harmonic distortion Output noise voltage Channel separation Ripple rejection ratio Output offset voltage Reference voltage control HIGH voltage control voltage control HIGH voltage control voltage Symbol ICCOP ISTBY POMAX POMXB VNOUT CHSEP SVRR VREF (Power amplifier operation mode) (Power amplifier standby mode) (Second amplifier standby mode) (Second amplifier operation mode) -30dBV -30dBV 620, 20kHz VOUT -10dBV, 20kHz 620, 100Hz, -20dBV 620, V3-V12, mode signal signal, mode, -30dBV 0.35 Conditions Ratings 11.2 Unit Vrms
No.A0972-2/17
LA4814V
Package Dimensions
unit (typ) 3313
SANYO evaluation board (double-sided) SANYO evaluation board (single-sided)
0.96
Allowable power dissipation,
1.85
1.15
(2.35) 0.65
0.22
0.15
0.35
0.60
Independent
0.18
1.5max
Ambient temperature,
SANYO HSSOP14(225mil)
Block Diagram
STBY BIAS
(1.3)
OUT2
Radiator
Power AMP-2 Power AMP-1
OUT1
CONTROL
VREF
No.A0972-3/17
LA4814V
Functions
Name OUT1 OUT2 Power amplifier output Voltage Ground Description Equivalent Circuit
Input
VREF Ripple filter (For connection capacitor filter)
100k 107k
100k
STBY Standby Standby mode 0.3V Operation mode 1.6V
Second amplifier stop control Second amplifier operation 0.3V Second amplifier stop 1.6V
Power supply
No.A0972-4/17
LA4814V
Cautions
1.Input coupling capacitors (C1, input coupling capacitors that used voltage. However, input coupling capacitor (C2) input resistor (R2) make high-pass filter, attenuating bass frequency. Therefore, capacitance value must selected with consideration cut-off frequency. cut-off frequency expressed following formula Note with care that this capacitance value affects noise startup. increase this capacitance value, necessary increase capacitance value capacitor (C5) soften startup characteristics. 2.Pin capacitor (C5) This capacitor designed ripple filter. purpose make low-pass filter with 100k internal resistor reducing ripple component power supply improve ripple rejection ratio. Inside startup characteristics voltage used drive automatic noise reduction circuit, care must taken with noise when capacitance value lower. However, when used mode, automatic noise reduction function mentioned above effect. Instead, noise reduction method that utilizes second amplifier control function used that capacitance value must determined while factoring ripple rejection ratio startup time. Recommended capacitance value Min. 2-channel mode) mono mode) 3.Bypass capacitor (C7) purpose bypass capacitor reject high-frequency components that cannot rejected power supply capacitor (chemical capacitor C6). Place capacitor near possible, ceramic capacitor with excellent high-frequency characteristics. 4.Standby function standby function serves place standby mode minimize current drain. When using standby function (when using microcomputer control) applying following voltages standby (pin mode changeover performed between standby operation. Operation mode 1.6V Standby mode 0.3V However, resistance resistor inserted series such that condition following formula met. 24.6 (Vstby 1.6) inrush current expressed following formula: STBY Vstby Vstby 26.3)/(1+0.04 Fig. When using standby function (microcomputer control possible) applying voltage from power supply (pin standby (pin turned without control microcomputer when power turned order reduce noise when turned off, recommended that resistor inserted shown Fig.2. resistance value indicated below recommended inserted resistor 5.0V 3.6V 3.0V
STBY
Fig.
No.A0972-5/17
LA4814V
5.Second amplifier control function (only when mode used) second amplifier control function function reduce startup pop-noise mode. noise reduced first turning while second amplifier stopped, then after potential inside gets stabilized, turning second amplifier. values shown below recommended control time.
[ms]
Time after releasing standby second amplifier turn-on
When using microcomputer control second amplifier controlled applying following voltages Second amplifier operation mode 0.3V Second amplifier stop mode 1.6V However, resistance value resistor inserted series such that condition following formula met. 16.2 (Vcnt 1.6) injected current expressed following formula Vcnt (57.6 Vcnt 31.7)/(1+0.058 Fig. When microcomputer control possible When microcomputer cannot used, second amplifier controlled adding external components shown Fig.
100k
STBY
Fig. 6.Shorting between pins When power applied with pins left short-circuited, electrical deterioration damage result. Therefore, check before power application pins short-circuited with solder, etc. during mounting 7.Load shorting load left short-circuited long period time, electrical deterioration damage occur. Never allow load short-circuit. 8.Maximum rating When used near maximum rating, there possibility that maximum rating exceeded even under smallest change conditions, resulting failure. Take sufficient margin variation supply voltage within range where maximum rating will never exceeded.
No.A0972-6/17
LA4814V
9.Turn-off transient response characteristics turned then turned back while there potential difference between (reference voltage, plus input pin) pins (minus input pins), louder noise than normally generated when power switched will emitted. Therefore, order minimize turn-on noise, smoothen discharge input output capacitors, bring potential pins approximately same level, then turn Single ended mode When continuous changeover mode between standby operation necessary, recommended insert resistor between output pins (pins ground accelerate turn-off transient response characteristic. value shown below recommended resistor used discharge. order reduce noise, recommended that time necessary turning back greater than following value. Recommended discharge resistor 4.7k (Recommended turn-on time 600ms)
PWRSTBY STBYPWR
100ms/div
OUT1
OUT:50mV/div,AC
4.7k
470F
Vref
7pin:1V/div,DC
0.22F
mode When continuous changeover mode between standby operation performed, recommended that second amplifier control function used reduce turn-on noise. this function used, noise level reduced regardless time taken turn after turned off. details time taken second amplifier turn after turned refer Section "Second amplifier control function."
No.A0972-7/17
LA4814V
Application Circuit Example (2-channel single ended mode)
SPEAKER
0.1F
470F
0.22F
470F
SPEAKER
Application Circuit Example (monaural mode)
0.1F
from
from
0.22F
from
SPEAKER
0.22F
No.A0972-8/17
LA4814V
Test Circuit
out2 Power supply 0.1F 470F
0.22F
Power supply Vsby 1.5V
470F out1 0.22F
Signal source 1kHz
No.A0972-9/17
LA4814V
General characteristics Single ended mode
Total harmonic distortion,
OPEN
ICCO
100.0
1kHz
Supply current, ICCO
10.0 0.01
Supply voltage,
0.01
Total harmonic distortion,
1kHz
Output power,
1kHz
Output power,
Output power,
1kHz
Supply voltage,
1kHz
Power dissipation,
Power dissipation,
3.6V
0.01
0.01
Output power,
Output power,
Total harmonic distortion,
10mW 10.4dB
Voltage gain,
100k
470F 10.4dB
Frequency,
Frequency,
100k
No.A0972-10/17
LA4814V
CH.Separation
Output noise voltage, Vrms
Channel separation
Audio VOUT -10dBV
Audio
CH12 CH21
7100
100k
Frequency,
Supply voltage ripple rejection, SVRR Supply voltage ripple rejection, SVRR
100k
SVRR
Supply voltage,
SVRR
-20dBV
-20dBV
Mutting attenation
1kHz 10.4dB standby mode
Frequency,
Mutting attenation
-10dBV 10.4dB standby mode
Capacitance,
Mutting level
Mutting level
100k
Input voltage,
Frequency,
General characteristics mode
0.01
Total harmonic distortion,
Total harmonic distortion,
1kHz 16.4dB
1kHz 16.4dB
0.01
Output power,
Output power,
No.A0972-11/17
LA4814V
1.50
1kHz
Power dissipation,
1kHz
Output power,
1.00
0.75
0.50
0.25
PCA02344
0.01
1.25
Supply voltage,
Total harmonic distortion,
1kHz
Output power,
PCA02345
10mW
Power dissipation,
PCA02346
0.01
7100k PCA02347
0.01
Output power,
Frequency,
Output noise voltage, Vrms
Audio
Voltage gain,
1.0F
-30dBV 16.4dB
PCA02348
Supply voltage,
Supply voltage ripple rejection, SVRR
SVRR
Frequency,
Supply voltage ripple rejection, SVRR
SVRR
-20dBV
-20dBV 100Hz
Frequency,
100k PCA02350
Capacitance,
No.A0972-12/17
100k PCA02349 PCA02351
LA4814V
Mutting level
Mutting level
1.6V 1kHz 16.4dB
Mutting attenation
Mutting attenation
1.6V 10dBV 16.4dB
second amplifier shut down mode
second amplifier shut down mode
7100k
Mutting level
Mutting level
1kHz 16.4dB standby mode
Mutting attenation
Input voltage,
Mutting attenation
Frequency,
out1-gnd
-10dBV 16.4dB standby mode
1out
out1-out2
7100k
Input voltage,
Frequency,
Temperature characteristics
ICCO
OPEN
Reference voltage, VREF
VREF
Supply current, ICCO
Ambient temperature,
(SE)
Ambient temperature,
(BTL)
Total harmonic distortion,
Total harmonic distortion,
10.4dB 1kHz -20dBV
16.4dB 1kHz -20dBV
Ambient temperature,
Ambient temperature,
No.A0972-13/17
LA4814V
1kHz
(SE)
(BTL)
Output power,
Output power,
1kHz
Ambient temperature,
(SE)
Ambient temperature,
(BTL)
Voltage gain,
Voltage gain,
1kHz 10.4dB -20dBV
1kHz 16.4dB -20dBV
Ambient temperature,
Ambient temperature,
No.A0972-14/17
LA4814V
noise
Single ended mode Turn-on transient response characteristic
STBY 200ms/div 50mV/div,
Single ended mode Turn-off transient response characteristic
STBY 1s/div 50mV/div,
7pin 1V/div,
7pin 1V/div,
mode: Turn-on transient response characteristic
STBY 100ms/div 3pin-12pin 50mV/div,
mode: Turn-off transient response characteristic
STBY 500ms/div 3pin-12pin 50mV/div,
7pin 1V/div,
7pin 1V/div, 9pin 1V/div,
No.A0972-15/17
LA4814V
Evaluation board
Double-sided board Size
Layer
Bottom Layer
Single-sided board Size
Layer
Bottom Layer
No.A0972-16/17
LA4814V
SANYO Semiconductor Co.,Ltd. assumes responsibility equipment failures that result from using products values that exceed, even momentarily, rated values (such maximum ratings, operating condition ranges, other parameters) listed products specifications SANYO Semiconductor Co.,Ltd. products described contained herein. SANYO Semiconductor Co.,Ltd. strives supply high-quality high-reliability products, however, semiconductor products fail malfunction with some probability. possible that these probabilistic failures malfunction could give rise accidents events that could endanger human lives, trouble that could give rise smoke fire, accidents that could cause damage other property. When designing equipment, adopt safety measures that these kinds accidents events cannot occur. Such measures include limited protective circuits error prevention circuits safe design, redundant design, structural design. event that SANYO Semiconductor Co.,Ltd. products described contained herein controlled under applicable local export control laws regulations, such products require export license from authorities concerned accordance with above law. part this publication reproduced transmitted form means, electronic mechanical, including photocopying recording, information storage retrieval system, otherwise, without prior written consent SANYO Semiconductor Co.,Ltd. information described contained herein subject change without notice product/technology improvement, etc. When designing equipment, refer "Delivery Specification" SANYO Semiconductor Co.,Ltd. product that intend use. Information (including circuit diagrams circuit parameters) herein example only; guaranteed volume production. Upon using technical information products described herein, neither warranty license shall granted with regard intellectual property rights other rights SANYO Semiconductor Co.,Ltd. third party. SANYO Semiconductor Co.,Ltd. shall liable claim suits with regard third party's intellctual property rights which resulted from technical information products mentioned above.
This catalog provides information November, 2007. Specifications information herein subject change without notice. No.A0972-17/17

LA4814V Monolithic Linear 2-Channel Power Amplifier LA4

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