Philips TDA1556Q User Manual
Page 6
July 1994
6
Philips Semiconductors
Product specification
2 x 22 W stereo BTL differential amplifier
with speaker protection and dynamic
TDA1556Q
Notes to the characteristics
1. The circuit is DC adjusted at V
P
= 6 to 18 V and AC operating at V
P
= 8.5 to 18 V
2. At 18 V < V
P
< 30 V the DC output voltage
≤
V
P
/2
3. Conditions: V
14
= 0 V; short circuit to ground; switch V
14
to MUTE or ON condition, rise time at V
14
=
≥
10
µ
s
4. Frequency response externally fixed
5. Ripple rejection measured at the output with a source-impedance of 0
Ω
(maximum ripple amplitude of 2 V) and a
frequency between 100 Hz and 10 kHz
6. Mismatching is given by the following equation:
7. Noise measured in a bandwidth of 20 Hz to 20 kHz
8. Noise output voltage independent of R
S
(V
I
= 0 V)
9. Common mode rejection ratio measured at the output with both inputs tied together. V
I(RMS)
< 3.5 V;
f = 100 Hz - 10 kHz
M
UTE CONDITION
V
mute
mute voltage
3.3
−
6.4
V
V
O
output signal in mute position
V
I max
= 1 V; f = 1 kHz
−
−
2
mV
V
os
DC output offset voltage
−
−
100
mV
S
TANDBY CONDITION
V
sb
stand-by voltage
0
−
2
V
I
sb
DC standby current
V
14
< 0.5 V
−
−
100
µ
A
0.5 V
≤
V
14
≤
2.0 V
−
−
500
µ
A
I
sw
switch-on current
−
25
60
µ
A
I
PSC
supply current
short-circuit to ground;
note 3
−
10
-
mA
Loudspeaker protection
∆
V
6-8, 10-12
DC voltage across R
L
−
−
1.0
V
t
d
delay time
−
0.5
−
s
Protection active (
∆
V
4-6
or
∆
V
7-9
≤
1.0 V
I
15
current information
−
25
−
µ
A
V
15
voltage information
3.6
−
−
V
Protection inactive (
∆
V
6-8
and
∆
V
10-12
≤
0.1 V)
V
15
voltage information
−
−
0.3
V
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Z
i
∆
Z
i1
Z
i2
–
Z
i1
---------------------
100
°°⁄
×
=
Z
i
∆
Z
i3
Z
i4
–
Z
i3
---------------------
100
°°⁄
Ч
=