SAMHOP Microelectronics Corp.
3W STEREO AUDIO POWER AMPLIFIER WITH ADVANCED DC VOLUME CONTROL
ELECTRICAL CHARACTERISTICS
(V
DD
=PV
DD
= 12V, Ta = 25
o
C unless otherwise noted)
Characteristic
Supply current
Shutdown current
Short to GND current limit
Output offset voltage
(measured differentially)
High-level input current
(SE/BTL,SHUTDOWN,)
Symbol
I
DD
I
SD
I
Short
V
OO
No load
Test Conditions
Min.
Typ.
25
1
1.1
Max.
40
20
Unit
mA
uA
A
SHUTDOWN=0V, SE/BTL=0V
V
IN
= 0V, R
L
= 900mΩ
Gain=20dB, SE/BTL=0V
50
1
mV
l
lH
V
l
= V
DD
= PV
DD
150
uA
Volume
Low-level input current
(SE/BTL,SHUTDOWN,VOLUME, )
l
lL
VI= 0V
6
1
uA
V
Bypass voltage (Nominally V
DD
/2)
V
(BYPASS)
Measured at pin 6,No load
(1)
OPERATING CHARACTERISTICS
(V
DD
=PV
DD
=12V, R
L
=16Ω, Gain = 6dB, Ta = 25
o
C unless otherwise noted)
Characteristic
Symbol
Test Conditions
THD+N=1%, f=1kHz,
R
L
=16Ω ,BTL mode , Gain=20dB
THD+N=10%, f=1kHz,
R
L
=16Ω ,BTL mode , Gain=20dB
THD+N=1%, f=1kHz,
R
L
=8Ω ,SE mode , Gain=14dB
THD+N=10%, f=1kHz,
R
L
=8Ω ,SE mode , Gain=14dB
Min.
Typ.
2.7
3.2
1.4
1.7
Max.
Unit
Output Power
(2)
P
O
W
High-level output voltage
Low-level output voltage
Supply current, max
Power into a 16
Ω
load
Total harmonic distortion+noise
Maximum output power bandwidth
Noise output voltage
(3)
V
OH
V
OL
I
DD
THD + N
B
OM
Measured between output and V
DD
Measured between output and GND
Output current PO=3W,
Stereo repetitive peak
P
O
=1W, f=1KHz, f=20Hz to 30kHz
BTL Mode
THD=5%
Gain = 0dB,C
(BYP)
=1.0 uf
600
400
1.5
0.1
> 20
36
mV
mV
A
RMS
%
kHz
μV
RMS
(1) At 9.0V < V
DD
< 13.5V the DC bypass voltage is approximately V
DD
/2
(2) Output power is measured at the output terminals of the IC.
(3) Noise voltage is measured in a bandwidth of 22Hz to 22KHz.
Page 4
V.0.1 Sep 11,2007
SAMHOP [ SAMHOP MICROELECTRONICS CORP. ]
