Ordering number : ENN6146
Monolithic Linear IC
LA4801V
Headphone Stereo Power Amplifier
Overview
The LA4801V is a headphone stereo power amplifier for
portable CD and MD players. It features a high signal-to-
noise ratio, a high ripple rejection ratio, low distortion,
and low current drain.
Package Dimensions
unit: mm
3178A-SSOP16
[LA4801V]
5.2
Functions
•
•
•
•
Headphone stereo power amplifier
Power switch
Muting switch
Center amplifier switch
16
9
4.4
Features
High signal-to-noise ratio (96 dB typical at 7 µV)
High ripple rejection ratio (76 dB typical)
Low current drain (4.8 mA typical)
Low power consumption achieved through the use of a
dual power supply system.
• No electrolytic capacitors required for the outputs.
• Ultraminiature package (SSOP-16)
Pd max — Ta
Allowable power dissipation, Pdmax — mW
500
1
8
0.1 (1.3)
1.5max
0.15
•
•
•
•
0.22
0.65
(0.33)
SANYO: SSOP16 (225 mil)
400
375
300
300
200
100
0
–10
0
20
40
60
80
100
Ambient temperature, Ta —
°C
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
72502RM (OT) No. 6146-1/10
0.5
6.4
LA4801V
Specifications
Maximum Ratings
at Ta = 25°C
Parameter
Maximum supply voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
V
CC
max
Pd max
Topr
Tstg
Conditions
Ratings
4.5
375
–15 to +50
–40 to +150
Unit
V
mW
°C
°C
Operating Conditions
at Ta = 25°C
Parameter
Recommended supply voltage
Symbol
V
CC
1
V
CC
2
V
CC
1 op
V
CC
2 op
R
L
*
Conditions
Ratings
1.5
2.5
0.9 to 4.5
1.5 to 3.5
16 to 32
Unit
V
V
V
V
Ω
Operating supply voltage range
Recommended load resistance
Note:
*
However, when V
CC
2 is under 2.5 V, with a 1.5 V minimum, V
CC
1 must be less than or equal to V
CC
2.
Electrical Characteristics
at Ta = 25°C, V
CC
1 = 1.5 V, V
CC
2 = 2.5 V, f
IN
= 1 kHz, R
L
= 16
Ω
Item
Symbol
I
CCO
1
Quiescent current
I
CCO
2
I
CCO
3
I
CCO
4
Voltage gain
Channel balance
Output power
Total harmonic distortion
Output noise voltage
Crosstalk
Ripple rejection ratio
Muting attenuation
Output DC offset
Power on current sensitivity
Power off voltage sensitivity
Mute off current sensitivity
Mute on voltage sensitivity
VG
∆VG
P
O
THD
V
NO
CT
SVRR
V
OFF
V
DC OFF
I1 ON
V1 OFF
I16 OFF
V16 ON
Conditions
IC off: with pin 1 open.
Mute on
Center amplifier off: with pin 3 at Vref
No input
V
O
= –10 dBm
V
O
= –10 dBm
THD = 10%
P
O
= 0.5 mW
Rg = 1 kΩ, DIN AUDIO
T
UN
1kHz, V
O
= –10 dBm
V
CC
= 1.0 V, fr = 100 kHz, Vr = –20 dBm, T
UN
100Hz
THD = 1%, T
UN
1kHz
V1 = 0 V, Rg = 1 kΩ
V
CC
1 = 0.9 V, V
CC
2 = 1.5 V, V5
≥
0.7 V
V
CC
1 = 0.9 V, V
CC
2 = 1.5 V, V5
≤
0.1 V
V
CC
1 = 0.9 V, V
CC
2 = 1.5 V, V5
≥
0.7 V
V
CC
1 = 0.9 V, V
CC
2 = 1.5 V, V5
≥
0.7 V
0.5
35
60
–80
–20
20
0.6
4.0
0.9
6.0
1.0
10.3
–1
6
Ratings
min
typ
0.05
1.3
3.3
4.8
11.8
0
13
0.2
7.8
45
70
–96
+20
40
1.0
15
max
1.0
3.0
8.0
9.0
13.3
1
Unit
µA
mA
mA
mA
dB
dB
mW
%
µV
dB
dB
dB
mV
µV
V
µV
V
No. 6146-2/10
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