Philips TDA1562ST - Manual (Page 13)

2003 Feb 12 13
Philips Semiconductors Preliminary specification
70 W high efficiency power amplifier
with diagnostic facility TDA1562Q; TDA1562ST;
TDA1562SD
AC CHARACTERISTICS
V
P
= 14.4 V; R
L
= 4
Ω
; R
s
= 0
Ω
; f = 1 kHz; T
amb
= 25
°
C; measurements in accordance with Fig.9; unless otherwise
specified.
Notes
1. The low frequency power roll-off is determined by the value of the electrolytic lift capacitors.
2. The low frequency gain roll-off is determined by the value of the input coupling capacitors.
3. Supply voltage ripple rejection is measured across R
L
; ripple voltage V
ripple(max)
= 2 V (p-p).
4. Common mode rejection ratio is measured across R
L
; common mode voltage V
cm(max)
= 2 V (p-p).
CMMR (dB) = differential gain (G
v
) + common mode attenuation (
α
cm
). Test set-up according to Fig.10; mismatch of
input coupling capacitors excluded.
5. Input signal rejection ratio is measured across R
L
; input voltage V
i(max)
= 2 V (p-p). ISSR (dB) = different gain
(G
v
) + mute attenuation (
α
m
).
6. Noise output voltage is measured in a bandwidth of 20 Hz to 20 kHz.
7. Noise output voltage is independent of source impedance R
s
.
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
P
o
output power class-B; THD = 10% 16 19
−
W
class-H; THD = 10% 60 70
−
W
class-H; THD = 0.5% 45 55
−
W
f
ro(h)(P)
high frequency power roll-off P
o
(
−
1 dB); THD = 0.5%;
note 1
−
20
−
kHz
THD total harmonic distortion P
o
= 1 W
−
0.03
−
%
P
o
= 20 W
−
0.06
−
%
DDD active
−
2.1
−
%
G
v
voltage gain 25 26 27 dB
f
ro(h)(G)
high frequency gain roll-off G
v
(
−
1 dB); note 2 20
− −
kHz

Z
i(dif)

differential input impedance 90 150 210 k
Ω
SVRR supply voltage ripple
rejection on and mute; note 3 55 63
−
dB
standby; note 3
−
90
−
dB
CMRR common mode rejection
ratio on; note 4 56 80
−
dB
ISRR input signal rejection ratio mute; note 5 80 100
−
dB
V
n(o)
noise output voltage on; note 6
−
100 150
µ
V
mute; notes 6 and 7
−
60
− µ
V