SAMHOP Microelectronics Corp.
3W STEREO AUDIO POWER AMPLIFIER WITH ADVANCED DC VOLUME CONTROL
ELECTRICAL CHARACTERISTICS (VDD =PVDD = 5.5V, Ta = 25oC unless otherwise noted)
Characteristic
Symbol
Condition
Min. Typ. Max. Unit
Output offset voltage (measured
differentially)
VOO
VDD=5.5V,Gain=20dB, SE/BTL=0V
60
mV
dB
uA
uA
Power supply rejection ratio
PSRR VDD=PVDD=4.0V to 5.5V
-42
-70
High-level input current(SE/BTL,FADE
HP/LINE,SHUTDOWN,SEMAX)
High-level input current
llH
1
VDD=PVDD=5.5V,
Vl=VDD=PVDD
150
llH
(SEDIFF,VOLUME)
Low-level input current(SE/BTL,FADE
HP/LINE,SHUTDOWN,SEMAX)
llL
VDD=PVDD=5.5V , Vl=0V
1
uA
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
2
Output Power
PO
W
THD=10%, f=1 kHz, VDD=5.5V
3
Total harmonic distortion+noise
High-level output voltage
THD+N
VOH
PO =1W, RL=8Ω, f=20Hz to 20kHz
<0.6
%
mV
mV
V
RL=8Ω,
500
400
2.85
Measured between output and VDD
RL=8Ω,
Measured between output and GND
Measured at pin 17, No load,
VDD=5.5V
Low-level output voltage
VOL
Bypass voltage(Nominally VDD/2)
Maximum output power bandwidth
V(BYPASS)
BOM
2.65
2.75
>20
THD=5%
kHz
BTL
-63
-57
f=1 kHz, Gain = 0 dB,
C(BYP) = 1.0uF
Supply ripple rejection ratio
Noise output voltage
dB
SE
f= 20 Hz to 20 kHz, Gain=0
BTL
40
μVRMS
dB, C(BYP)= 1.0 uF
Page 4
V.1.3 Revised April 02,2007