TDA8547TS Ver la hoja de datos (PDF) - Philips Electronics
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TDA8547TS Datasheet PDF : 20 Pages
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Philips Semiconductors
2 × 0.7 W BTL audio ampliï¬er with
output channel switching
Product speciï¬cation
TDA8547TS
AC CHARACTERISTICS
VCC = 5 V; Tamb = 25 °C; RL = 8 Ω; f = 1 kHz; VMODE = 0 V; gain = 20 dB; measured in BTL application circuit Fig.4;
unless otherwise speciï¬ed.
SYMBOL
PARAMETER
Po
output power, one channel
THD
Gv
Zi
Vno
SVRR
total harmonic distortion
closed loop voltage gain
differential input impedance
noise output voltage
supply voltage ripple rejection
Vo
output voltage
αcs
channel separation
CONDITIONS
MIN.
THD = 10%
1
THD = 0.5%
0.6
Po = 0.4 W
−
note 1
6
−
note 2
−
note 3
50
note 4
40
note 5
−
VSELECT = 0.5VCC; note 6 40
TYP.
1.2
0.9
0.15
−
100
−
−
−
−
−
MAX.
−
−
0.3
30
−
100
−
−
200
−
UNIT
W
W
%
dB
kΩ
µV
dB
dB
µV
dB
Notes
1. Gain of the amplifier is 2 × RR-----21-- in BTL application circuit Fig.4.
2. The noise output voltage is measured at the output in a frequency range from 20 Hz to 20 kHz (unweighted), with a
source impedance of RS = 0 Ω at the input.
3. Supply voltage ripple rejection is measured at the output, with a source impedance of RS = 0 Ω at the input.
The ripple voltage is a sine wave with a frequency of 1 kHz and an amplitude of 100 mV (RMS), which is applied to
the positive supply rail.
4. Supply voltage ripple rejection is measured at the output, with a source impedance of RS = 0 Ω at the input.
The ripple voltage is a sine wave with a frequency between 100 Hz and 20 kHz and an amplitude of 100 mV (RMS),
which is applied to the positive supply rail.
5. Output voltage in mute position is measured with a 1 V (RMS) input voltage in a bandwidth of 20 Hz to 20 kHz,
so including noise.
6. Channel separation is measured at the output with a source impedance of RS = 0 Ω at the input and a frequency of
1 kHz. The output power in the operating channel is set to 0.5 W.
1998 Apr 01
8
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