SAMHOP Microelectronics Corp.
3W STEREO AUDIO POWER AMPLIFIER WITH UP / DOWN GAIN CONTROL
ELECTRICAL CHARACTERISTICS (V
DD
=PV
DD
= 5.5V, Ta = 25
o
C unless otherwise noted)
Characteristic
Output offset voltage
(measured differentially)
Power supply rejection ratio
High-level input current
(SE/BTL,SHUTDOWN)
Low-level input
current(SE/BTL,SHUTDOWN,VOLUME)
Supply current, no load
Symbol
V
OO
PSRR
l
lH
l
lL
Condition
V
DD
=5.5V,Gain=20dB, SE/BTL=0V
V
DD
=PV
DD
=4.0V to 5.5V
V
DD
=PV
DD
=5.5V,
V
l
=V
DD
=PV
DD
V
DD
=PV
DD
=5.5V , V
l
=0V
V
DD
=PV
DD
=5.5V,SE/BTL=0V,
SHUTDOWN=2V
V
DD
=PV
DD
=5.5V,SE/BTL=5.5V,
SHUTDOWN=2V
V
DD
=5V=PV
DD
,SE/BTL=0V,
SHUTDOWN=2V,R
L
=3Ω,
P
O
=2W,Stereo
SHUTDOWN=0.0V
5.5
3.0
8.0
5.0
1.5
1
20
-42
-70
1
1
10
6.0
mA
Min.
Typ.
Max.
60
Unit
mV
dB
uA
uA
l
DD
Supply current,max power into a 3Ω load
Supply current,shutdown mode
l
DD
l
DD(SD)
A
RMS
uA
OPERATING CHARACTERISTICS
(V
DD
=PV
DD
= 5V, R
L
= 3Ω, Gain = 6dB, Ta = 25
o
C unless otherwise noted)
Characteristic
Symbol
Condition
THD=1%, f=1 kHz, R
L
=4Ω
THD=10%, f=1 kHz, R
L
=4Ω
Output Power
(1)
P
O
THD=1%, f=1 kHz, R
L
=8Ω
THD=10%, f=1 kHz, R
L
=8Ω
THD=10%, f=1 kHz, R
L
=3Ω,V
DD
=5.5V
Total harmonic distortion+noise
High-level output voltage
Low-level output voltage
Bypass voltage(Nominally V
DD
/2)
(2)
Maximum output power bandwidth
Supply ripple rejection ratio
Initial gain
THD+N
V
OH
V
OL
V
(BYPASS)
B
OM
P
O
=1W, R
L
=8Ω, f=20Hz to 20kHz
R
L
=8Ω,
Measured between output and V
DD
R
L
=8Ω,
Measured between output and GND
Measured at pin 11,
No load, V
DD
=5.5V
THD = 5%
f=1 kHz, Gain = 0 dB,
C
(BYP)
= 0.47uF
f= 1kHz , R
L
= 8Ω
BTL
SE
-2
Min.
Typ.
1.9
2.4
1.3
1.6
3
< 0.6
600
400
2.65
2.75
> 20
-63
-57
-4
-6
2.85
%
mV
mV
V
kHz
dB
dB
W
Max.
Unit
(1) Output power is measured at the output terminals of the IC.
(2) At 4V < V
DD
< 5.5V the DC bypass voltage is approximately V
DD
/2
Page 4
V.1.0 Apr 30,2007
SAMHOP [ SAMHOP MICROELECTRONICS CORP. ]
