SAMHOP Microelectronics Corp.
3W STEREO AUDIO POWER AMPLIFIER WITH ADVANCED DC VOLUME 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,FADE
HP/LINE,SHUTDOWN,SEMAX)
High-level input current
(SEDIFF,VOLUME)
Low-level input current(SE/BTL,FADE
HP/LINE,SHUTDOWN,SEMAX)
Supply current, no load
Symbol
V
OO
PSRR
l
lH
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
-42
-70
1
150
1
5.5
3.0
8.0
5.0
1.5
1
20
10
6.0
mA
Min.
Typ.
Max.
60
Unit
mV
dB
uA
uA
uA
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
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
Output Power
Total harmonic distortion+noise
High-level output voltage
Low-level output voltage
Bypass voltage(Nominally V
DD
/2)
Maximum output power bandwidth
Supply ripple rejection ratio
Noise output voltage
Symbol
P
O
THD+N
V
OH
V
OL
V
(BYPASS)
B
OM
Condition
THD=1%, f=1 kHz
THD=10%, f=1 kHz, V
DD
=5.5V
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 17, No load,
V
DD
=5.5V
THD=5%
Min.
Typ.
2
3
<0.6
Max.
Unit
W
%
500
400
2.65
2.75
>20
2.85
mV
mV
V
kHz
dB
μV
RMS
f=1 kHz, Gain = 0 dB,
C
(BYP)
= 1.0uF
f= 20 Hz to 20 kHz, Gain=0
dB, C
(BYP)
= 1.0 uF
BTL
SE
BTL
-63
-57
40
Page 4
V.1.3 Revised April 02,2007
SAMHOP [ SAMHOP MICROELECTRONICS CORP. ]
