SGM4895 Datasheet, PDF (3/13 Pages) SG Micro Corp – Audio Power Amplifier

SGM4895
1.3W Fully Differential
Audio Power Amplifier
ELECTRICAL CHARACTERISTICS
(The following AC specifications apply for 8Ω load, A_V = 1V/V, T_A = +25℃, unless otherwise specified.)
PARAMETER
SYMBOL
CONDITIONS
MIN
Supply Voltage
V₊
2.5
Shutdown Current
ISD
VIN = 0V, VSHDN = GND
V_IN = 0V, V_SHDN = V₊ = 5.0V
-10
Output Offset Voltage
V_OS
VIN = 0V, VSHDN = V+ = 3.3V
-10
V_IN = 0V, V_SHDN = V₊ = 2.6V
V₊ = 5.0V, No Load
V+ = 5.0V, 8Ω Load
Quiescent Power Supply Current
I_Q
V_IN = 0V, I_O = 0A,
VSHDN = V+
V₊ = 3.3V, No Load
V+ = 3.3V, 8Ω Load
V₊ = 2.6V, No Load
V₊ = 2.6V, 8Ω Load
Shutdown Voltage Input High
VSDIH
1.2
Shutdown Voltage Input Low
V_SDIL
V+ = 5.0V
f = 1kHz
THD+N = 1%
V₊ = 3.6V
V₊ = 3.0V
Output Power (8Ω)
P_O
V+ = 2.6V
V₊ = 5.0V
f = 1kHz
THD+N = 10%
V+ = 3.6V
V₊ = 3.0V
V+ = 2.6V
Output Power (4Ω)
f = 1kHz
THD+N = 1%
SGM4895YDB8 only
P_O
f = 1kHz
THD+N = 10%
SGM4895YDB8 only
V+ = 5.0V
V₊ = 3.6V
V+ = 3.0V
V₊ = 2.6V
V+ = 5.0V
V+ = 3.6V
V₊ = 3.0V
V+ = 2.6V
Total Harmonic Distortion + Noise
THD+N P_O = 0.6Wrms, f = 1kHz, V₊ = 5.0V
V+ = 5.0V
Power Supply Rejection Ratio ^{(1) (2)}
PSRR
f = 217Hz
V₊ = 3.6V
V₊ = 3.0V
V+ = 2.6V
V₊ = 5.0V
f = 1kHz
V+ = 3.6V
V₊ = 3.0V
Common Mode Rejection Ratio ⁽²⁾
CMRR
V₊ = 2.6V
f = 217Hz, VCM = 200mVP-P, V+ = 5.0V
V₊ = 5.0V
Wake-Up Time
TWU
CB = 1μF
V+ = 3.6V
V₊ = 3.0V
V₊ = 2.6V
TYP
0.01
2.5
2.0
2.0
4.70
4.75
3.87
3.90
3.20
3.22
1.30
0.65
0.45
0.34
1.60
0.82
0.55
0.42
1.60
1.00
0.65
0.50
2.20
1.25
0.85
0.60
0.015
-83
-80
-73
-65
-83
-80
-73
-65
-76
50
42
37
32
MAX
5.5
1
10
10
UNITS
V
μA
mV
7.50
8.00
5.80
mA
6.00
V
0.4
W
W
%
dB
dB
ms
NOTES:
1. 10Ω terminated input.
2. PSRR and CMRR are affected by the matching between gain-setting resistor ratios.
SG Micro Corp
3
www.sg-micro.com