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PDF TDA8541 Data sheet ( Hoja de datos )
| Número de pieza | TDA8541 | |
| Descripción | 1 W BTL audio amplifier | |
| Fabricantes | NXP Semiconductors | |
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INTEGRATED CIRCUITS
DATA SHEET
TDA8541
1 W BTL audio amplifier
Product specification
Supersedes data of 1997 Feb 19
1998 Apr 01
1 page  
NXP Semiconductors
1 W BTL audio amplifier
Product specification
TDA8541
AC CHARACTERISTICS
VCC = 5 V; Tamb = 25 °C; RL = 8 Ω; f = 1 kHz; VMODE = 0 V; measured in test circuit Fig.3; unless otherwise specified.
SYMBOL
Po
THD
Gv
Zi
Vno
SVRR
Vo
PARAMETER
output power
total harmonic distortion
closed loop voltage gain
differential input impedance
noise output voltage
supply voltage ripple rejection
output voltage in mute condition
CONDITIONS
THD = 10%
THD = 0.5%
Po = 0.5 W
note 1
note 2
note 3
note 4
note 5
MIN.
1
0.6
−
6
−
−
50
40
−
TYP.
1.2
0.9
0.15
−
100
−
−
−
−
MAX.
−
−
0.3
30
−
100
−
−
200
UNIT
W
W
%
dB
kΩ
μV
dB
dB
μV
Notes
1. Gain of the amplifier is 2 × R2/R1 in test circuit of Fig.3.
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 an input voltage of 1 V (RMS) in a bandwidth of 20 kHz, so including
noise.
1998 Apr 01
5
5 Page 
NXP Semiconductors
1 W BTL audio amplifier
Product specification
TDA8541
−20
handbook, halfpage
SVRR
(dB)
−40
MGD886
(1)
−60 (2)
(3)
−80
10
102 103 104 f (Hz) 105
VCC = 7.5 V, RL = 4 Ω, Rs = 0 Ω, Vi = 100mV.
(1) Gv = 24 dB.
(2) Gv = 20 dB.
(3) Gv = 0 dB.
Fig.16 SVRR as a function of frequency.
handbook, h2alfpage
Po
(W)
1.6
1.2
0.8
MGD887
(1) (2)
(3)
0.4
0
0 4 8 12 16
VCC (V)
(1) THD = 10%, RL = 4 Ω.
(2) THD = 10%, RL = 8 Ω.
(3) THD = 10%, RL = 16 Ω.
Fig.17 Po as a function of VCC.
handbook1, .h6alfpage
P
(W)
1.2
0.8
0.4
MGD888
(1) (2) (3)
handbook1, h.2alfpage
P
(W)
0.8
0.4
MGD889
(1)
(2)
(3)
0
0 4 8 12 VCC (V) 16
0
0 0.4 0.8 1.2 1.6
Po (W)
(1) RL = 4 Ω.
(2) RL = 8 Ω.
(3) RL = 16 Ω.
Fig.18 Worst case power dissipation as a function
of VCC.
(1) VCC = 7.5 V, RL = 4 Ω.
(2) VCC = 12 V, RL = 16 Ω.
(3) VCC = 9 V, RL = 8 Ω.
Fig.19 Power dissipation as a function of Po.
1998 Apr 01
11
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet TDA8541.PDF ] | |
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