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 Ordering number : ENN6502
LA4629
Monolithic Linear IC
LA4629
Two-Channel Audio Frequency Power Amplifier
Overview
The LA4629 is a 2-channel power amplifier developed for use in radio/cassette player products. The LA4629 reduces the number of required external components by 50% over earlier products (BS/NF capacitors and oscillation prevention RC components) and thus can contribute significantly to space saving in end products.
Package Dimensions
unit : mm 3049B-SIP12H
[LA4629]
26.8 (20.0)
4.0
* Provided in the SIP12H package. * PO : 2.5 W ! 2 (VCC = 9 V, RL = 3 ) 4.5 W ! 2 (VCC = 12 V, RL = 3 ) : 2.0 W ! 2 (VCC = 9 V, RL = 4 ) 4.0 W ! 2 (VCC = 12 V, RL = 4 ) * Standby function built in (supports direct microcontroller control). * Built-in thermal protection circuit.
7.0
1.0min
1 (2.4) 2.0 0.5 1.0
12 0.4 2.0
SANYO : SIP12H
Specifications
Maximum Ratings at Ta = 25C
Parameter Maximum supply voltage Allowable power dissipation Operating temperature Storage temperature Symbol VCC max Pd max Topr Tstg Conditions No input With an arbitrarily large heat sink Ratings 24 25 -25 to +75 --40 to +150 Unit V W C C
Operating Conditions at Ta = 25C
Parameter Recommended supply voltage Operating voltage range Recommended operating load resistance Symbol VCC VCC op RL op Conditions The range over which the package Pd is not exceeded. Ratings 12 5 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 Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
42000 RM (IM) No.6502-1/6
6.0
13.2max
(8.4)
(R1.7)
(11.8)
Features
LA4629
Operating Characteristics at Ta = 25C, VCC = 12V, RL = 3 , f = 1 kHz, Rg = 600
Parameter Quiescent current Standby current Voltage gain Output power Symbol ICCO IST VG PO(1) PO(2) PO(3) PO(4) THD VNO SVRR CHsep Ri VST Rg = 0 VO = 0 dBm THD = 10 % VCC = 12 V, RL = 4 , THD = 10 % VCC = 9 V, RL = 3 , THD = 10 % VCC = 9 V, RL = 4 , THD = 10 % PO = 1 W Rg = 0, DIN AUDIO Rg = 0, fR = 100 Hz, Vr = 0 dBm, DIN AUDIO Rg = 0, VO = 0 dBm, DIN AUDIO The pin 6 voltage such that the amplifier is on Conditions min 18 43 3.0 2.0 Ratings typ 35 1.0 45 4.5 4.0 2.5 2.0 0.2 0.15 55 50 30 5.0 max 80 10 47 Unit mA A dB W W W W % mV dB dB k V
Total harmonic distortion Output noise voltage Ripple rejection ratio Channel separation Input resistance Standby pin voltage
0.8 0.5
45 43 20 1.5
40
28
Pd max -- Ta
Aluminum heat sink mounted with a torque of 39 N *cm, flat washers, and with silicone grease applied. With an arbitrarily large heat sink
Allowable power dissipation, Pd max -- W
25 24
20
16
Mounted on the Sanyo-recommended printed circuit board 100 ! 100 ! 1.5 mm3
12.5
12
8
50 ! 50 ! 1.5 mm3 7.0
3.6
4
Independent IC
0 --20 0 20
3.2 40 60 80 100 ILA00180
Ambient temperature, Ta -- C
Application Circuit
LA4629
POWER STBY GND 5
*Rx
OUT2 1
1000 F
VCC 2
OUT1 3
1000 F
NC 4
RF 7
100 F 4.7 F
P. P 8
IN1 9
IN2 10
NC 11
PRE GND 12
6
+
+
1F 1F
+
+
+
+
RL
RL
STBY 5V
IN2
+
1000 F
Top view
* Pins 4 and 11 must be left open. ** Rx: If the STBY pin (pin 6) is used, observe the following: Insert the resistor Rx in series to limit the inflowing current. (The amplifier will be on when a voltage is applied to pin 6.)
ILA00074
No.6502-2/6
LA4629
Block Diagram
STBY 6 VCC 2
Standby SW ch1 Input
9
ch1 input amplifier Rf1 RNf1
Output amplifier
3
ch1 Output
PRE GND
12 RNf2
REF amplifier Rf2
TSD protector
5
POWER GND
ch2 Input 10
ch2 input amplifier
Output amplifier
1
ch2 Output
Pop noise prevention block
Ripple filter
8 P.P
7 Filter
ILA00076
Pin Functions 1. Standby switch function (pin 6)
Rx Applied standby voltage Vx +
STBY 6
2 k
2 k
The inflowing current at an applied voltage of 1.5 V, i.e. the point when the amplifier turns on, is approximately 750 A.
ILA00075
STBY pin applied voltage: 5 V To hold the pin 6 inflow current to about 750 A insert a resistor (Rx) of 4.7 k STBY pin applied voltage: 12 V To hold the pin 6 inflow current to about 750 A insert a resistor (Rx) of 14 k (12 k). STBY pin applied voltage: Other value (Vx) To hold the pin 6 inflow current to about 750 A insert a resistor (Rx) of (Vx - 1.5 V)/750 A.
* If a microcontroller output signal is applied directly, insert a resistor in series and adjust the current to a level optimal for the drive capability of the microcontroller. 2. Input pins (pins 9 and 10) The input pin voltage is about 2 VBE (1.4 V). The input pin impedance is about 30 k. * Although the recommended value for the input capacitor is 0.22 F, the starting time can be modified by changing the value of this capacitor. (The time from the point a voltage is applied to the standby pin to the point sound is emitted.) Input capacitor Starting time (ts) 1.0 F 0.2 s 2.2 F 0.3 s 3.3 F 0.5 s 4.7 F 0.65 s 10 F 1.5 s
No.6502-3/6
LA4629
3. FILTER (decoupling) pin (pin 7) The pin voltage is about 1/2 VCC. The recommended value for the filter capacitor is 100 F. The pulse noise that occurs when the standby pin is set low (power off) will be degraded if a value under 100 F is used.
AC voltage (100 mV) AC voltage (200 mV)
Output DC voltage
Output DC voltage
Filter capacitor = 100 F
ILA00078
Filter capacitor = 47 F
ILA00079
VCC
* The recommended value for the P.P capacitor is 4.7 F. The pulse noise that occurs when the standby pin is set low (power off) will be degraded if a value under 2.2 F is used. Furthermore, if a value over 10 F is used, the signal may not be cut off and sound may remain audible when the standby pin is set low (power off).
8
5 k
5 k
4. P.P (pulse noise) pin (pin 8) Pin 8 pin voltage VCC - VCE (about 0.3 V) - 5.6 V + 5.6 V 2 k
Zener voltage = 5.6 V To the input amplifier block/bias system
ILA00080
5. MUTE (Muting) The output signal can be controlled by shifting the pin 7 (FILTER) level towards ground with a 300 to 500 resistor. However, note that the degree of suppression is reduced if a value of 750 or more is used.
Output AC voltage
Output DC voltage
Mute ON
Mute OFF
ILA00081
No.6502-4/6
LA4629
10
VCC -- PO
Quiescent current, ICCO -- mA
f = 1 kHz Rg = 600 RL = 3/4/8 THD = 10 %
100
VCC -- ICCO
RL = Open Rg = 0
8
80
Output power, PO -- W
6
3 = L R 4 = RL
60
4
RL
2
=8
40
20
0 6 7 8 9 10 11 12 13 14 15 16 17 18
0 0 4 8 12 16 20 24 ILA00083
Supply voltage, VCC -- V
10 7 5 3 2 1.0 7 5 3 2 0.1 7 5 3 2 0.01 10 23 5 7 100 23 5 7 1k 23 5 7 10k
ILA00082 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
THD -- f
Supply voltage, VCC -- V
THD -- PO
Total harmonic distortion, THD -- %
Total harmonic distortion, THD -- %
VCC = 12 V RL = 3 PO = 1 W
VCC = 12 V RL = 3 Rg = 0
10 kHz
100 Hz
1 kHz
23
Frequency, f -- Hz
0 --10
5 7100k ILA00084
5
7
1.0
2
3
5
CHsep -- f
Ripple rejection ratio, SVRR -- dB
VCC = 9/12 V RL = 3 Rg = 0 VO = 0 dBm DIN AUDIO CH21: 9 V
Output power, PO -- W
0
7 10 ILA00085
SVRR -- fR
Channel separation, CHsep -- dB
--10
--20 --30 --40 --50 --60 --70 --80
--20
VCC = 9 V RL = 3 Rg = 0 VCCR = 0 dBm DIN AUDIO
--30
CH1
2:
CH12: 12 V
9V
CH21: 12 V
--40
--50
--60 --70 10
OUT
2
OU
23 5 7100 23 5 7 1k 23 5 7 10k 23
T1
5 7 100 2 3 5 7 1k 2 3 5 7 10k ILA00087
--90 10
Frequency, f -- Hz
2
5 7100k ILA00086
2
3
f -- Response
Ripple rejection ratio, SVRR -- dB
Ripple frequency, fR -- Hz
0
SVRR -- VCC
0
--10
Rg = 0 fR = 100 Hz VCCR = 0 dBm DIN AUDIO
--20
Response -- dB
--2
--30
--4
--40
--6
--8
--10 10
VCC = 12 V RL = 3 Rg = 600 VO = 0 dBm at 1 kHz Input capacitor = 1 F
23 5 7 100 23 5 7 1k 23 5 7 10k 23
--50
OUT1
--60 --70 5 10 15 20 25 ILA00089
OUT2
Frequency, f -- Hz
5 7100k ILA00088
Supply voltage, VCC -- V
No.6502-5/6
LA4629
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 April, 2000. Specifications and information herein are subject to change without notice.
PS No.6502-6/6


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