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Ordering number : EN6012
LA4600
Monolithic Linear IC
LA4600
.
Audio Power Amplifier for Radio Cassette Recorders
Package Dimensions
unit: mm 3046B-SIP10F
[LA4600]
25.5 24.0 3.6
Overview
The LA4600 is an audio power amplifier which requires minimum count of external parts by incorporating BS capacitor, NF capacitor; and oscillation prevention CR components into the IC circuitry.
3.6
Functions
* Output power : VCC = 12V/4............ VCC = 9V/4 .............. * Built-in stanby switch * Built-in overheat protection (TSD) 4.0W X 2 2.0W X 2
16.7max 3.5 14.0 8.4 1.6 min
1 2.54 0.5 1.3
10 0.45 1.6
1.32
SANYO : SIP10F
Specifications
Maximum Ratings at Ta = 25C
Parameter Maximum supply voltage Allowable power dissipation Thermal resistance Operating temperature Storage temperature Symbol Vcc max Pd max j-c Topr Tstg Conditions Rg=0 (No signal) With an arbitrary large Ratings 24 12.5 10.0 - 20 to +75 - 40 to +150 Unit V W C/W C C
Operating Conditions at Ta = 25C
Parameter Recommended supply voltage Recommended load resistance Operating supply voltage range Operating load resistance range Symbol Vcc RL Vcc Op Within maximum ratings Conditions Ratings 12 4 5.0 to 22 2.7 to 8 Unit V V
Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft's control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications. SANYO 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 products described or contained herein.
SANYO Electric Co., Ltd. Semiconductor Business Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
N1298RM(KI) No. 6012-1/7
LA4600
Electrical Characteristics at Ta = 25C, VCC=12V, RL=4 , f=1 kHz
Parameter Standby current Quiescent current Voltage gain Total harmonic distortion Output noise voltage Output voltage Symbol Ist Icco VG THD Vno Po1 Po2 Channel separation Ripple rejection ratio Stanby ON voltage Input resistance Chsep SVRR Vst Ri Conditions min Standby pin --> GND Rg=0 Vo=0dBm Po=1w Rg=0, DIN AUDIO THD=10% Vcc=9V, THD=10% Vo=0dBm, Rg=0, DIN AUDIO Vr=0dBm, Rg=0, fr=100 Hz DIN AUDIO 3.0 1.5 50 45 1.5 20 18 43.0 Ratings typ 1.0 32 45.0 0.2 0.15 4.0 2.0 60 55 5.0 30 40 max 10 64 47.0 0.8 0.5 A mA dB % mV W W dB dB V K Unit
Block Diagram
Standby 7 Standby switching CH1 input 10 Vcc 4
CH1 input amplifier Rf1 RNf1
Predrive amplifier
Output amplifier
1 CH1 output
Small signal 9 GND RNf2
REF amplifier Rf2
TSD protector
2 Large signal GND
CH2 input 8
CH2 input amplifier
Predrive amplifier
Output amplifier
3 CH2 output
Pop noise prevention block
Ripple filter 5 Filter
6 P.P
No. 6012-2/7
LA4600 Sample Application
+5V
+
1000F 7 4 VCC
STANDBY
10 0.22F ch1 Input
+
ch1 1 Output
1000F
+
4
9 PRE GND
LA4600
POWER GND 2
8 0.22F
ch2 Input
ch2 3 Output
+
+
1000F
4
P.P 6
+
Filter 5
+
4.7F
100F
Pd max - Ta
Allowable power dissipation, Pd max - W
14
With an arbitrary large heatsink (jc=10C/W)
12 12.5
10
8 7.5 6 5 4
50X50X1.5mm3
No heatsink
2 0 -20
3.0 1.94 1.16
0
20
40
60
80
100
Ambient temperature, Ta - C
No. 6012-3/7
LA4600 Pin Descriptions 1. Standby switching function (7)
Power is switched ON and OFF by controlling the High and Low states at pin 7, respectively (standby). To switch power ON, apply 1.5V or more, or 800 A to pin 7. . Current supplied to pin 7 =. Applied voltage
+
VCC
To bias circuit
Applied voltage - VBE (approx. 0.7V) 2 k
7 2k
2 k
* When directly connecting a microcontroller with this pin, add a resistor in series to optimize the current for the microcontroller.
2k
2. Input pins (8,10)
Voltage at the input pins is approx. 2 VBE (1.4V). Input impedance is approx. 30 k. * The recommended value for the input capacitor is 0.22 F, but this can be varied in order to adjust the starting time (ts). (The starting time is the time required from applying voltage to the standby pin until sound output is obtained. )
Input capacitator Starting time (ts) 1.0 F 0.2s 2.0 F 0.3s 3.3 F 0.5s 4.7 F 0.65s 10 F 1.5s
3. Filter (decoupling) pin (5)
Pin voltage is approx. 1/2 VCC. The recommended value for the filter capacitor is 100 F. When capacitance is lower, pop noise when setting the standby pin to Low (power OFF) will increase.
Filter capacitor= 100
AC voltage (100 mV)
Filter capacitor= 47 F
AC voltage (200mV)
Output DC voltage
Output DC voltage
No. 6012-4/7
LA4600 4. P.P (pop noise) pin (6)
. VCC - VCE (approx. 0.3V) - 5.6V Voltage at pin 6 = . 2 + 5.6V
5k 6 5k VCC
* The recommended value for the P.P capacitor is 4.7 F. When capacitance is lower than 2.2 F, pop noise when setting the standby pin to Low (power OFF) will increase. When capacitance is higher than 10 F, the sound will not be cut off when setting the standby pin to Low (power OFF).
Zener voltage = 5.6V To input amplifier/ bias circuitry
5. Muting
The output signal can be controlled by connecting pin 5 (Filter) to ground via a resistance of 300 to 500 . If resistance is higher than 750 , the suppression ratio will decrease.
Output AC voltage
Output DC voltage
Mute ON
Mute OFF
No. 6012-5/7
LA4600
10 9
VCC - PO
Quiescent current, ICCO - mA
80
VCC - ICCO
Rg=0
THD=10% f=1kHz
70 60 50 40 30 20 10 0 4
Output power, PO - W
8 7 6
4 3 2 1 0 4 8
R L=
12
R L=
3
5
=8 RL
4
16
20
24
8
12
16
20
24
28
Supply Voltage, VCC - V
10 7 5 3 2 1.0 7 5 3 2
Supply Voltage, VCC -V VCC=12V RL=4 PO=1W Rg=600
100 7 5 3 2 10 7 5 3 2 1.0 7 5 3 2 0.1 7 5 3 2 0.01 0.1 2 3 5 7
THD - f
Total harmonic distortion, THD - %
THD - PO
VCC=12V RL=4 PO=1W Rg=600
Total harmonic distortion, THD - %
2ch
0.1 7 5 3 2 0.01 10 23 5 7 100 2 3 5 7 1k 23 5 7 10k 23 5 7 100k
1ch 2ch
1ch
1.0
2
3
5
7
10
Frequency, f - Hz
80
Output power, PO - W
80
Chsep - f
Ripple rejection, SVRR - dB
SVRR - f
VCC=12V RL=4 Vr=0dBm Rg=0 DIN AUDIO ch1 ch2
Channel separation, Chsep - dB
60
ch2
-ch
1
70
70
60
40
ch
1-
50
ch
2
50
40
30
20 2
VCC=12V RL=4 VO=0dBm Rg=0 DIN AUDIO
3 5 7 100 2 3 5 7 1k 2 3 5 7 10k 2 3
30
20 2
3
5
7
100
2
3
5
7
1k
2
3
Frequency, f - Hz
1
Frequency, f - Hz
1.0
f - Response
Output noise voltage, VNO - mV
VNO - Rg
VCC=12V RL=4 DIN AUDIO
00
F
0 -1
VCC=12V RL=4 VO=0dBm
0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 5 7 1k 2 3 5 7 10k
Response - dB
Co
-2 -3 -4 -5 -6 -7 -8 10
ut=
Cout =100 0F
22
23
5 7 100
23
5 7 1k
23
5 7 10k
23
5 7 100k
2
3
5
7
Frequency, f - Hz
Signal source impedance, Rg -
No. 6012-6/7
LA4600
10 9
Pd - PO
RL=3 f=1kHz Rg=600
10 9
Pd - PO
RL=4 f=1kHz Rg=600
8 7 6 5 4 3 2 1 0 7 0.1 2 3 5 7 1.0 2 3 5 7 10
Power dissipation, Pd - W
Power dissipation, Pd - W
8 7 6 5
VC
2 =1 V CC
= C
V 15
V
V
4 3 2 1 0 7 0.1 2 3
=1 CC
5V
V
V CC=9V
=12 VCC
VCC=9V
5
7
1.0
2
3
5
7
10
Output power, Po - W
6
Output power, Po - W
Pd - PO
RL=8 f=1kHz Rg=600
Power dissipation, Pd - W
5
4
3
=15 VCC
V
VCC=12V
2
VC C=9V
1
0
7
0.1
2
3
5
7
1.0
2
3
5
7
10
Output power, Po - W
Specifications of any and all SANYO 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. SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all semiconductor products fail with some probability. It is possible that these probabilistic failures could give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire, or 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 products(including technical data,services) described or contained herein are controlled under any of applicable local export control laws and regulations, such products must not be exported without obtaining 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 permission of SANYO Electric 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 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. 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 November, 1998. Specifications and information herein are subject to change without notice. PS No. 6012-7/7

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