Advertisement
-:+
7'$ ,&,&
ELECTRICAL CHARACTERISTICS (Refer to the test circuit, V
R
= 12KΩ; Demod.. filter L = 60µH, C = 470nF; f = 1KHz; T
f
Symbol
V
Supply Range
S
I
Total Quiescent Current
q
V
Output Offset Voltage
OS
P
Output Power
O
P
(*)
Dissipated Power at 1W Output
d
Power
P
Maximum Dissipated Power
DMAX
η
Efficiency ≡
THD
Total Harmonic Distortion
I
Overcurrent Protection
max
Threshold
T
Thermal Shut-down Junction
j
Temperature
G
Closed Loop Gain
V
e
Total Input Noise
N
R
Input Resistance
i
SVR
Supply Voltage Rejection
T
, T
Rising and Falling Time
r
f
R
Power Transistor on Resistance
DSON
F
Switching Frequency
SW
F
Switching Frequency Operative
SW_OP
Range
B
Zero Signal Frequency
F
Constant (***)
R
Frequency Controller Resistor
F
Range (****)
V
Stand-by range
ST-BY
V
Mute Range
MUTE
V
Play Range (1)
PLAY
A
Mute Attenuation
MUTE
I
Quiescent Current @ Stand-by
qST-BY
*: The output average power when the amplifier is playing music can be considered roughly 1/10 of the maximum output power. So it is useful
to consider the dissipated power in this condition for thermal dimensioning.
**: P
= measured across the load using the following inductor:
O
COIL 58120 MPPA2 (magnetics)
COIL77120 KOOL Mµ (magnetics)
***: The zero-signal switching frequency can be obtained using the following expression: F
****: The maximum value of R
(1): For V
>5.2V, an input impedance of 10KΩ is to be considered.
12
Parameter
= ∞; NO LC Filter
R
L
Play Condition
THD = 10%
THD = 1%
R
= 4Ω V
L
THD = 10%
THD = 1%
R
= 12KΩ P
f
P
= 10W THD 10%
Ο
R
th-j-amb
THD 10%
P
P
O
O
≡
(**)
R
th-j-amb
+ P
P
P
O
D
I
R
= 8Ω; P
L
R
= 0
L
A Curve
f = 20Hz to 22KHz
f = 100Hz; V
MUTE & STAND-BY FUNCTIONS
TURNS: 28 ∅ 1mm
TURNS: 28 ∅ 1mm
is related to the maximum possible value for the voltage drop on R
F
= ±14V; R
CC
= 25°C unless otherwise specified.)
amb
Test Condition
Min.
±10
–50
8.5
6
= ±10.5V
CC
= 1W
Ο
2
= 38°C/W (Area 12cm
)
80
2
= 38°C/W (Area 12cm
)
= 0.5W
O
3.5
29
20
= 0.5
46
r
100
100
7
1.8
4
60
= B
/R
SW
F
F
itself.
F
= 8Ω; R
= 50Ω;
L
S
Typ.
Max.
Unit
±16
V
25
40
mA
+50
mV
10
W
7
W
10
W
7
W
1
W
1.8
W
85
%
0.1
%
5
A
150
°C
30
31
dB
µV
7
µV
12
30
KΩ
60
dB
50
ns
Ω
0.4
120
140
KHz
200
KHz
9
1.4x10
HzΩ
12
14
KΩ
0.8
V
2.5
V
V
80
dB
3
5
mA
Advertisement
