1997 Jul 15
6
Philips Semiconductors
Product specification
Stereo BTL audio output amplifier with DC
volume control
TDA7053A
CHARACTERISTICS
V
P
= 6 V; T
amb
= 25
°
C; f
i
= 1 kHz; TDA7053A: R
L
= 8
Ω
; TDA7053AT: R
L
= 16
Ω
; unless otherwise specified
(see Fig.13).
Notes
1. With a load connected to the outputs the quiescent current will increase, the maximum value of this increase being
equal to the DC output offset voltage divided by R
L
.
2. The noise output voltage (RMS value) at f
i
= 500 kHz is measured with R
S
= 0
Ω
and bandwidth = 5 kHz.
3. 20 Hz to 300 kHz (typical).
4. The ripple rejection is measured with R
S
= 0
Ω
and f
i
= 100 Hz to 10 kHz. The ripple voltage of 200 mV (RMS value)
is applied to the positive supply rail.
5. The channel unbalance is measured with V
DC1
= V
DC2
.
6. The channel unbalance at G
1
= 0 dB is measured with V
DC1
= V
DC2
.
7. The noise output voltage (RMS value) is measured with R
S
= 5 k
Ω
unweighted.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
P
supply voltage
4.5
−
18
V
I
q(tot)
total quiescent current
V
P
= 6 V; R
L
=
∞
; note 1
−
22
25
mA
Maximum gain; V
2,8
≥
1.4 V
P
out
output power
THD = 10%
TDA7053A
1.0
1.1
−
W
TDA7053AT
0.5
0.55
−
W
THD
total harmonic distortion
TDA7053A
P
out
= 0.5 W
−
0.3
1
%
TDA7053AT
P
out
= 0.25 W
−
0.3
1
%
G
v
voltage gain
39.5
40.5
41.5
dB
V
I(rms)
input signal handling (RMS value) G
v
= 0 dB; THD
<
1%
1
−
−
V
V
no
noise output voltage
f
i
= 500 kHz; note 2
−
210
−
µ
V
B
bandwidth
at
−
1 dB
−
note 3
−
Hz
SVRR
supply voltage ripple rejection
note 4
34
38
−
dB
V
O(os)
DC output offset voltage
V
16
−
V
13
and
V
12
−
V
9
−
0
200
mV
Z
i
input impedance (pins 4 and 6)
15
20
25
k
Ω
α
cs
channel separation
R
S
= 5 k
Ω
40
−
−
dB
G
v
channel unbalance
note 5
−
−
1
dB
G
1
= 0 dB; note 6
−
−
1
dB
Mute position; V
2,8
= 0.4 V
±
30 mV
V
O
output voltage in mute position
V
i
= 1.0 V; note 7
−
30
40
µ
V
DC volume control
G
C
gain control
68.5
73.5
−
dB
I
DC
volume control current
V
2
= V
8
= 0 V
−
20
−
25
−
30
µ
A
