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