SGM4895_17 Datasheet, PDF (3/13 Pages) SG Micro Corp – 1.3W Fully Differential Audio Power Amplifier

SGM4895
1.3W Fully Differential
Audio Power Amplifier
ELECTRICAL CHARACTERISTICS
(The following AC specifications apply for 8Ω load, AV = 1V/V, TA = +25℃, unless otherwise specified.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
Supply Voltage
V+
2.5
Shutdown Current
ISD
VIN = 0V, VSHDN = GND
0.01
VIN = 0V, VSHDN = V+ = 5.0V
-10
2.5
Output Offset Voltage
VOS
VIN = 0V, VSHDN = V+ = 3.3V
-10
2.0
VIN = 0V, VSHDN = V+ = 2.6V
2.0
V+ = 5.0V, No Load
4.70
V+ = 5.0V, 8Ω Load
4.75
Quiescent Power Supply Current
IQ
VIN = 0V, IO = 0A,
VSHDN = V+
V+ = 3.3V, No Load
V+ = 3.3V, 8Ω Load
3.87
3.90
V+ = 2.6V, No Load
3.20
V+ = 2.6V, 8Ω Load
3.22
Shutdown Voltage Input High
VSDIH
1.2
Shutdown Voltage Input Low
VSDIL
V+ = 5.0V
1.30
f = 1kHz
THD+N = 1%
V+ = 3.6V
V+ = 3.0V
0.65
0.45
Output Power (8Ω)
PO
V+ = 2.6V
V+ = 5.0V
0.34
1.60
f = 1kHz
THD+N = 10%
V+ = 3.6V
V+ = 3.0V
0.82
0.55
V+ = 2.6V
0.42
Output Power (4Ω)
f = 1kHz
THD+N = 1%
SGM4895YDB8 only
PO
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
1.60
1.00
0.65
0.50
2.20
1.25
0.85
0.60
Total Harmonic Distortion + Noise THD+N PO = 0.6Wrms, f = 1kHz, V+ = 5.0V
0.015
V+ = 5.0V
-83
V+ = 3.6V
-80
f = 217Hz
V+ = 3.0V
-73
Power Supply Rejection Ratio ^{(1) (2)}
PSRR
V+ = 2.6V
-65
V+ = 5.0V
-83
V+ = 3.6V
-80
f = 1kHz
V+ = 3.0V
-73
V+ = 2.6V
-65
Common Mode Rejection Ratio ⁽²⁾
CMRR f = 217Hz, VCM = 200mVP-P, V+ = 5.0V
-76
V+ = 5.0V
50
V+ = 3.6V
42
Wake-Up Time
TWU
CB = 1μF
V+ = 3.0V
37
V+ = 2.6V
32
NOTES:
1. 10Ω terminated input.
2. PSRR and CMRR are affected by the matching between gain-setting resistor ratios.
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
SG Micro Corp
www.sg-micro.com
MARCH 2017
3