LA4815VH Monolithic Linear Monaural Power Amplifier LA4

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LA4815VH Monolithic Linear Monaural Power Amplifier LA4

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Ordering number ENA1374A
LA4815VH
Monolithic Linear
Monaural Power Amplifier
LA4815VH incorporates 1-channel power amplifier with wide operating supply voltage range built into surface-mounted package. This also mute function requires only external components, making suitable low-cost design. There also MFP8 package type which incorporates same chip (LA4815M).
Applications
Intercoms, door phones, transceivers, radios, toys, home appliances with voice guidance, etc.
Features
Built-in 1-channel power amplifier Output power 1.84W typ. (VCC 12V, 10%) Output power 1.55W typ. (VCC 10%) Output power 0.36W typ. (VCC 10%) Output power 0.23W typ. (VCC 10%) Mute function Selectable voltage gain types 26dB/40dB Gain values between 40dB also adding external components (two resistors). Only external components components/total Wide supply voltage range
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.
31109 20090226-S00009 D1008 No.A1374-1/15
LA4815VH
Specifications
Maximum Ratings 25°C
Parameter Maximum power supply voltage Allowable power dissipation Operating temperature Storage temperature Symbol Topr Tstg Mounted board Conditions Ratings +150 Unit
Mounted SANYO evaluation board Double-sided board with dimensions 50mm 50mm 1.6mm (glass epoxy)
Operating Conditions 25°C
Parameter Recommended power supply voltage Recommended load resistance Allowable operating supply voltage range supply voltage level used must determined with consideration given allowable power dissipation Symbol Conditions Ratings Unit
Electrical Characteristics 25°C, 12V, 1kHz
Parameter Quiescent current drain-1 Quiescent current drain-2 Maximum output power-1 Maximum output power-2 Voltage gain-1 Voltage gain-2 Total harmonic distortion Mute attenuation Output noise voltage Ripple rejection ratio Mute control voltage-LOW Mute control voltage-HIGH1 Mute control voltage-HIGH2 Input resistance Symbol ICCOP1 ICCOP2 POMAX1 POMAX2 VNOUT SVRR V3cntL V3cntH1 V3cntH2 signal signal, 10%, -30dBV -40dBV, 4/pin11 -30dBV -10dBV, 620, 20kHz 620, 100Hz, -20dBV Mute mode Mute released, 6.5V lower Mute released, 6.5V higher 23.9 Conditions Ratings 1.84 1.55 25.9 39.5 0.125 -115 27.9 µVrms Unit
No.A1374-2/15
LA4815VH
Package Dimensions
unit (typ) 3313
SANYO evaluation board (double-sided), 1.6mm3 (glass epoxy)
Allowable power dissipation,
0.90
(2.35) 0.65
0.22
0.15
0.35
Independent
0.21
1.5max
Ambient temperature,
SANYO HSSOP14(225mil)
Evaluation board
Double-sided circuit board Dimensions 50mm 50mm 1.6mm Layer (Top view) Bottom Layer (Top view)
(1.3)
No.A1374-3/15
LA4815VH
Block Diagram Sample Application Circuit
GAIN1
PGND
GND1
BIAS
Radiator
Power
PreAmp
Vbias
Speaker Cout 220µF Cosc 0.1µF
MUTE MUTE GAIN2
CVCC 10µF
from
Test Circuit
PGND GND1 GAIN1
MUTE
GAIN2
0.1µF VOUT 220µF 0.3V
10µF
0.1µF
No.A1374-4/15
LA4815VH
Functions
Name GAIN1 Voltage 0.35 Description Gain switching pin. 26dB mode when left open. 40dB mode when connected ground. (Both pins must reconfigured same time.) Equivalent Circuit
GND1 Preamplifier system ground pin. Input pin.
Pre-Amp 100k Vbias
PGND
Power amplifier ground pin. Power amplifier output pin.
Pre-Amp
MUTE Power supply pin. Mute control pin. Mute Mute High
BIAS
GAIN2 0.35 Gain switching pin. 26dB mode when left open. 40dB mode when connected ground. (Both pins must reconfigured same time.)
No.A1374-5/15
LA4815VH
Notes Using Voltage gain settings (Pins voltage gain power amplifier fixed internal resistors. Pins left open Approximately 26dB Pins connected Approximately 39.5dB Note that voltage gain changed using resistors. (See Fig. Voltage gain setting According resistor connected between (GND1) Voltage gain 20log (625 Rvg1)/(125 Rvg1)) Output voltage setting According resistor connected between (GND1) Rvg1 Rvg2 must satisfied. addition, voltage gain also lowered approximately 20dB (when using power supply) application such shown Fig. below. Voltage gain setting According resistor connected between (OUT) Voltage gain 20log (125 Rvg3)/(10,125 Rvg3)) Output voltage setting According resistor connected between (VCC) resistor values that (OUT) voltage approximately half supply voltage. Example When Rvg3 10k, Rvg4 (when However, note that using this method greatly lower voltage gain deteriorates characteristics, voltage gain should lowered only approximately 20dB. addition, when using high supply voltage more), clipped waveform invert, this voltage gain reduction method must used these cases.
Rvg2 Rvg4
GND1 GAIN1
GND1 GAIN1
LA4815VH
GAIN2
LA4815VH
GAIN2 Rvg3
Rvg1
Figure
Figure
Signal source impedance mentioned above, since input coupling capacitor affects ripple rejection ratio, signal source impedance value which associated with this capacitor, also affects ripple rejection ratio, should small possible. Therefore, when attenuating signal front shown Fig. constants should consideration these characteristics. Using smallest resistor value possible recommended. addition, when setting signal level, voltage gain should LA4815VH side input front-end should configured using only input coupling capacitor, Cin, shown Fig. order maximize ripple rejection ratio.
other Pre-Amp 100k Vbias
LA4815VH
Figure
other
LA4815VH
Figure
Figure
No.A1374-6/15
LA4815VH
Mute control (Pin internal power amplifier circuit disabled audio mute turned controlling voltage applied Control performed directly using output port, digital noise from worsen LA4815VH noise floor. Therefore, inserting series resistor, 2.2k) shown Fig. recommended. Mute Mute High open addition, voltage dependent supply voltage, reverse current flows power supply line when voltage higher than supply voltage. these cases, connect resistor, (see Fig. between lower voltage shown Fig. Note that when using mute function, must left open.
LA4815VH
port
reverse current prevention
Figure Reverse current prevention resistor value (reference value) When approximately 2.5V
1000
Impedance,
Supply voltage,
Figure Mute control timing When performing mute control, exercise control timing shown Fig. During power-on 50ms Pins also rise simultaneously. During power-off 200ms
(VCC) (MUTE)
Figure
No.A1374-7/15
LA4815VH
Popping noise reduction during power-off power supply line directly controlled without using mute function. However, when using high supply voltage, shock noise aftersound during power-off tends worsen. method coping with this connect capacitor between (VCC) (MUTE) that auto mute function operates during power-off. Recommended value
LA4815VH
MUTE
CVCC
Figure Input coupling capacitor (Cin) input coupling capacitor, used cutting. However, this capacitor also used improve ripple rejection ratio, which changes according capacitance value (recommended value 1µF). addition, this capacitor also affects transient response characteristics during power-on when mute canceled, constant should consideration these characteristics. Design reference value approximately 0.33 3.3µF Ripple rejection ratio Increasing capacitance value increases rate, reducing value reduces rate. Rise response speed Increasing capacitance value reduces speed, reducing value increases speed. Popping noise Increasing capacitance value reduces noise, reducing value increases noise. Output coupling capacitor (Cout) Cout output coupling capacitor used cutting. However, this capacitor, Cout, combination with load impedance forms high-pass filter attenuates frequency signals. Take into account cutoff frequency when determining capacitance value. addition, normally chemical capacitor used this capacitor, capacitance value chemical capacitors decreases temperatures, value should accordance with this characteristic. cutoff frequency expressed following formula. 1/(2 Cout) Output phase compensation capacitor (Cosc) Cosc capacitor used prevent output oscillation. ceramic capacitor (recommended value 0.1µF) with good high frequency characteristics, locate this capacitor close possible. Power supply capacitor (CVCC) CVCC capacitor used suppress ripple component power supply line. Normally chemical capacitor (recommended value 10µF) used this capacitor. However, chemical capacitors have poor high frequency characteristics, when using CPU, other that generates digital noise set, recommended that power supply bypass capacitor (ceramic capacitor, recommended value approximately 0.1µF) added reject high-frequency components. Locate this bypass capacitor close possible. treatment Since pins (pins connected nothing internally, they left open. increase heat dissipation efficiency, however, recommended that pins should connected line.
No.A1374-8/15
LA4815VH
Signal mixing methods following methods used beep, tone other signal into audio signal. Note that when input selected, amplification signals input from changes according impedance connected 11-1. Mixing method using resistors input front
Signal-2
OUT2
Vout2 input impedance 100k 100k Vbias Pre-Amp
Signal-1
OUT1 Vout1
other
LA4815VH
Figure
11-2. Method using input First signal system (Signal-1) voltage gain 20log (Vout/Vin1) 20log (125 (500 (125 Z4/(125 Z4)))/(25 Z4)) Second signal system (Signal-2) voltage gain 20log (Vout/Vin2) 20log (10000/(125 R1)) 1/(2 Cin2 125))
Vin2 OUT2 Signal-2 OUT1 Cin2
GAIN2
Pre-Amp
Vout
Vbias
Signal-1
Vin1
100k
other
LA4815VH
Figure
Short-circuit between pins Turning power supply with some pins short-circuited cause deterioration breakdown. Therefore, when mounting board, check make sure that short-circuit formed between pins solder other foreign substances before turning power supply. Load short circuit Leaving long time condition with load short circuit cause deterioration breakdown. Therefore, never short-circuit load. Maximum ratings When used under conditions near maximum ratings, even slight fluctuation conditions cause maximum ratings exceeded, possibly resulting breakdown other accidents. Therefore, always provide enough margin fluctuations supply voltage other conditions, within range exceeding maximum ratings.
No.A1374-9/15
LA4815VH
General characteristics
Total harmonic distortion, Total harmonic distortion,
0.01
26dB 1kHz
26dB 1kHz
0.01
Output power,
0.01 0.01
Output power,
0.01
Total harmonic distortion,
Total harmonic distortion,
26dB 1kHz
100mW
Output power,
0.01
Frequency,
0.01
50mW
Total harmonic distortion,
Total harmonic distortion,
200mW
Frequency,
Frequency,
VOUT
26dB 1kHz
40dB
Output level, VOUT
Voltage gain,
26dB
0.01
100k
Input level,
Frequency,
No.A1374-10/15
LA4815VH
General characteristics
26dB 1kHz
26dB 1kHz
Supply current, ICCOP
0.01
(Pd)
(Pd)
0.01
Output power,
Supply voltage ripple rejection, SVRR
Output power,
SVRR
26dB 1kHz
Supply current, ICCOP
Power dissipation,
0.25
0.01
0.75
-20dBV
Output power,
Supply voltage ripple rejection, SVRR Supply voltage ripple rejection, SVRR
Input frequency,
SVRR
SVRR
-20dBV 100Hz
26dB 40dB
-20dBV 100Hz
Capacitance,
Impeadance,
7100
710k
26dB
Max. output power,
26dB
Max. output power,
Supply voltage,
Load impeadance,
No.A1374-11/15
Supply current, ICCOP
Power dissipation,
Power dissipation,
LA4815VH
General characteristics V3cont
26dB -20dBV
Control voltage, V3cont Muting level, Vmute
Vmute
40dB 26dB
Supply voltage,
Vpin
Input level,
ICCO
OPEN
voltage, Vpin
Supply current, ICCO
E-OF
E-ON
Supply voltage,
Vmute
Supply voltage,
Vmute
Muting level, Vmute
Muting level, Vmute
26dB -10dBV 1kHz
26dB -10dBV
0.01 100k
Supply voltage,
Input frequency,
AUDIO
Noise voltage, µVrms
40dB
26dB
Supply voltage,
No.A1374-12/15
LA4815VH
Temperature characteristics
0.01
Total harmonic distortion,
Total harmonic distortion,
25°C
75°C
25°C
0.01
-25°C
Output power,
Output power,
Output power,
Output power,
0.01
26dB 1kHz
0.01
26dB 1kHz
Ambient temperature,
0.01
Ambient temperature,
26dB 1kHz
40dB
Voltage gain,
Output power,
26dB
26dB =1kHz
26dB =1kHz
Ambient temperature,
Ambient temperature,
AUDIO
voltage,
OPEN
Noise voltage, µVrms
Ambient temperature,
Ambient temperature,
No.A1374-13/15
LA4815VH
Temperature characteristics
V3cont
26dB 1kHz -30dBV
-25°
ICCO
OPEN
Control voltage, V3cont
Supply current, ICCO
75°C -25°
Supply voltage,
Supply voltage,
Muting transient characteristics
200ms/div 200ms/div
200mV/div,
200mV/div,
2V/div,
2V/div,
2.2µF
200ms/div
2.2µF
200ms/div
200mV/div,
200mV/div,
2V/div,
2V/div,
No.A1374-14/15
LA4815VH
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 March, 2009. Specifications information herein subject change without notice. No.A1374-15/15

LA4815VH Monolithic Linear Monaural Power Amplifier LA4

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