STMicroelectronics 1.2 W fully differential audio power amplifier DEMOTS4995J DEMOTS4995J Data Sheet
Product codes
DEMOTS4995J
Electrical characteristics
TS4995
6/26
Table 5.
V
CC
= +3.3V (all electrical values are guaranteed with correlation measurements at
2.6V and 5V), GND = 0V, T
amb
= 25°C (unless otherwise specified)
Symbol
Parameter
Test conditions
Min.
Typ. Max.
Unit
I
CC
Supply current
No input signal, no load
3
7
mA
I
STBY
Standby current
No input signal, V
STBY
= V
SM
= GND, R
L
= 8
Ω
No input signal, V
STBY
= V
SM
= V
CC
, R
L
= 8
Ω
10
1000
nA
V
oo
Differential output offset
voltage
voltage
No input signal, R
L
= 8
Ω
0.1
10
mV
V
IC
Input common mode voltage
0.4
2.3
V
P
o
Output power
THD = 1% max, F= 1kHz, R
L
= 8
Ω
300
500
mW
THD + N
Total harmonic distortion +
noise
noise
P
o
= 300mW rms, 20Hz
≤
F
≤
20kHz, R
L
= 8
Ω
0.5
%
PSRR
IG
Power supply rejection ratio
with inputs grounded
with inputs grounded
(1)
F = 217Hz, R = 8
Ω,
C
in
= 4.7µF, C
b
=1µF
V
ripple
= 200mV
PP
75
(2)
90
dB
CMRR Common mode rejection ratio
F = 217Hz, R
L
= 8
Ω,
C
in
= 4.7µF, C
b
=1µF
V
ic
= 200mV
PP
60
dB
SNR
Signal-to-noise ratio
A-weighted filter
R
L
= 8
Ω,
THD +N < 0.7%, 20Hz
≤
F
≤
20kHz
100
dB
GBP
Gain bandwidth product
R
L
= 8
Ω
2
MHz
V
N
Output voltage noise
20Hz
≤
F
≤
20kHz, R
L
= 8
Ω
Unweighted
A weighted
Unweighted, standby
A weighted, standby
A weighted
Unweighted, standby
A weighted, standby
11
7
3.5
1.5
1.5
µV
RMS
Z
in
Input impedance
15
20
25
k
Ω
-
Gain mismatch
5.5
6
6.5
dB
t
WU
Wake-up time
(3)
C
b
=1µF
10
ms
1.
Dynamic measurements - 20*log(rms(V
out
)/rms (V
ripple
)). V
ripple
is the super-imposed sinus signal relative to V
CC
.
2.
Guaranteed by design and evaluation.
3.
Transition time from standby mode to fully operational amplifier.