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Philips Semiconductors
TDA8943SF
6 W mono Bridge Tied Load (BTL) audio amplifier
Product specification Rev. 02 — 7 April 2000 8 of 20
9397 750 06865
© Philips Electronics N.V. 2000. All rights reserved.
12. Dynamic characteristics
[1] The noise output voltage is measured at the output in a frequency range from 20 Hz to 20 kHz (unweighted), with a source impedance
R
S
=0Ω at the input.
[2] Supply voltage ripple rejection is measured at the output, with a source impedance R
S
=0Ω at the input. The ripple voltage is a sine
wave with a frequency f
ripple
and an amplitude of 700 mV (RMS), which is applied to the positive supply rail.
[3] Output voltage in mute mode is measured with an input voltage of 1 V (RMS) in a bandwidth of 20 kHz, so including noise.
Table 8: Dynamic characteristics
V
CC
=12V; T
amb
=25
°
C; R
L
=8
Ω
; f = 1 kHz; V
MODE
= 0 V; measured in test circuit Figure 13; unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
P
o
output power THD = 10% 5 6 - W
THD = 0.5% 3 4 - W
THD total harmonic distortion P
o
= 1 W - 0.03 0.1 %
G
v
voltage gain 31 32 33 dB
Z
i(dif)
differential input impedance 70 90 110 kΩ
V
n(o)
noise output voltage
[1]
- 90 120 µV
SVRR supply voltage ripple rejection f
ripple
= 1 kHz
[2]
50 65 - dB
f
ripple
= 100 Hz
to 20 kHz
[2]
-60-dB
V
o(mute)
output voltage mute mode
[3]
--50µV
Fig 5. Output voltage as function of mode voltage.
handbook, full pagewidth
V
MODE
(V)
20
MGU043
1684120
V
o
(V)
10
−3
10
−2
10
−1
1
10
10
−4
10
−5