SGM4890_15 Datasheet, PDF (3/12 Pages) SG Micro Corp – 1.1W Audio Power Amplifier

SGM4890
1.1W Audio Power Amplifier
ELECTRICAL CHARACTERISTICS
(T_A = +25℃, unless otherwise specified.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
V₊ = +5.0V, No Load
V₊ = +5.0V, 8Ω Load
4
8
6
10
Quiescent Power Supply Current
I_Q
V_IN = 0V, I_O = 0A
V₊ = +3.6V, No Load
V₊ = +3.6V, 8Ω Load
V₊ = +3.0V, No Load
V₊ = +3.0V, 8Ω Load
3.7
5.7
mA
3.5
7
5.5
9
V₊ = +2.6V, No Load
3.3
V+ = +2.6V, 8Ω Load
5.3
Shutdown Current
Shutdown Voltage Input High
Shutdown Voltage Input Low
Output Offset Voltage
Output Power (8Ω)
I_SD
VSDIH
V_SDIL
VOS
V_SHUTDOWN = 0V
P_O
f = 1kHz,
THD+N = 1%
V₊ = +5.0V
V+ = +3.6V
V₊ = +3.0V
V+ = +2.6V
0.01 4.0
μA
1.2
V
0.4
V
1
50
mV
1.10
0.58
W
0.40
0.30
Total Harmonic Distortion + Noise
THD+N
P_O = 0.4Wrms, f = 1kHz
V+ = +5.0V
0.01
%
-66
f = 217Hz
V₊ = +3.6V
-63
V+ = +3.0V
-63
Power Supply Rejection Ratio
PSRR
V₊ = +2.6V
V+ = +5.0V
-62
dB
-72
f = 1kHz
V₊ = +3.6V
-68
V+ = +3.0V
-66
V₊ = +2.6V
-64
V+ = +5.0V
110
Wake-Up Time
TWU
CBYPASS = 1μF
V₊ = +3.6V
V+ = +3.0V
110
ms
100
V₊ = +2.6V
100
V+ = +5.0V
10
Shutdown Time
TSDT
8Ω Load
V₊ = +3.6V
V+ = +3.0V
16
μs
17.8
V₊ = +2.6V
17.8
SG Micro Corp
3
www.sg-micro.com