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Ordering number : ENN8213
LA4810M
Monolithic Linear IC
Stereo/Monaural BTL Power
Amplifier
Overview
The LA4810M stereo/monaural BTL power amplifier is an IC that has been developed for portable radios and
compact radio cassette players/recorders containing a preamplifier, a power amplifier, and an electronic volume
control
Applications
Audio equipment such as portable radios and compact radio cassette players/recorders
Functions & Features
2-channel stereo power amplifier
Stereo/monaural BTL selector
Electronic volume control
Incorporates two channels of low-voltage (VCC=1.8V or higher) drive power amplifiers
EIAJ output power 1=125mW typical (VCC=3V, RL=8)
EIAJ output power 2=280mW typical (VCC=4.5V, RL=8)
Configurable as a monaural BTL power amplifier (selected at pin 2)
EIAJ output power 3=350mW typical (VCC=3V, RL=8)
EIAJ output power 4=600mW typical (VCC=4.5V, RL=16)
Onchip electronic volume
Onchip ripple filter
Specifications
Maximum Ratings at Ta=25°C
Parameter
Symbol
Maximum supply voltage
Allowable Power Dissipation
VCC max
Pd max1
Operating Temperature
Topr
Storage Temperature
Tstg
* Specified board: 114.3mm×76.1mm×1.6mm
Conditions
Ta60°C, when mounted on a PCB*
Board material: glass epoxy
Ratings
8
700
-10 to +60
-40 to +150
Unit
V
mW
°C
°C
Any and all SANYO Semiconductor 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 Semiconductor representative
nearest you before using any SANYO Semiconductor products described or contained herein in such
applications.
SANYO Semiconductor 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
products described or contained herein.
92706 / 61305 KK JK No.8213-1/12

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LA4810M
Operating Conditions at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Recommended supply voltage
VCC
3.0 V
Allowable operating supply voltage range 1 VCCOP1
RL=8
1.8 to 4.5
V
Allowable operating supply voltage range 2 VCCOP2
RL=16
3.0 to 6.0
V
* Adequate consideration must be given to the allowable power dissipation when determining the supply voltage to be
used.
Electrical Characteristics at Ta = 25°C, VCC=3V, fin=1kHz, RL=8
Parameter
Symbol
Test Conditions
min typ max Unit
Quiescent current
Voltage gain
BTL voltage gain
Channel balance
ICCOP
GS
GB
BCH
No signal is present.
VIN=40dBm
VIN=40dBm,BTL mode
31.3
36.3
3
5.5
34.3
40.3
0
11
37.3
44.3
3
mA
dB
dB
dB
Output DC offset voltage
difference
Maximum output power1
DCOS
POMX1
BTL mode
THD=10%
80 0
90 125
80 mV
mW
Maximum output power2
Maximum output power3
POMX2
POMX3
THD=10%,VCC=4.5V
THD=10%,BTL mode
180 280
220 350
mW
mW
Maximum output power4
Total harmonic distortion
BTL total harmonic distortion
Output noise voltage
POMX4
THDS
THDB
VNS
THD=10%,BTL mode, VCC=4.5V,RL=16
At VIN=20dBm, PO=50mW
At VIN=20dBm, PO=50mW, BTL mode
Rg=0, f=20 to 20kHz
400 600
0.4
0.5
0.45
mW
2.5 %
2.5 %
0.9 mVrms
BTL output noise voltage
VNB
Rg=0, f=20 to 20kHz, BTL mode
0.6 1.2 mVrms
Channel separation
Volume attenuation
SCH
VIN=40dBm, 1kHzBPF
68 58 dBm
VOL
Attenuation at VIN=40dBm, VOL at center position
3 7.5
14 dB
0dBm=1mW (R=600)774.6mVrms
No.8213-2/12

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Pin Description
Pin No.
1
16
Pin Symbol
IN2
IN1
LA4810M
Equivalent Circuit Diagram
Pin Voltage
VCC=3V
VCC=4.5V
00
Description
Input pins
2 SW
3 NC
4 NF2
13 NF1
IL07036
1.23
1.23
MONO/BTL
Selector pin
ILA07037
1.45
2.2 Power amplifier NF pins
(Connect a NF capacitor across
these pins.)
5 GND2
12 GND1
6 PGND2
11 PGND1
7 OUT2
10 OUT1
ILA07038
0
0
1.45
0 Preamplifier GND pins
0 Power amplifier GND pins
2.2 Power amplifier output pins
ILA07039
Continued on next page.
No.8213-3/12

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Continued from preceding page.
Pin No. Pin Symbol
8 RIPPLE
LA4810M
Equivalent Circuit Diagram
Pin Voltage
VCC=3V
VCC=4.5V
2.71
4.07
Description
Ripple filter pin
(Connect a filter capacitor.)
9 VCC
14 VOL
ILA07040
3
0 to 1.23
(Apply)
4.5
0 to 1.23
(Apply)
Power pin
Volume control pin
15 REG
ILA07041
1.23
1.23
Internal regulator pin
(Connect a stabilization
capacitor.)
ILA07042
No.8213-4/12

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Block Diagram
LA4810M
Test Circuit Diagram
ILA07043
ILA07044
No.8213-5/12