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TDA8947J Datasheet(Fiches technique) 10 Page - NXP Semiconductors

Numéro de pièce TDA8947J
Description  4-channel audio amplifier (SE: 1 W to 25 W; BTL: 4 W to 50 W)
Télécharger  24 Pages
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Fabricant  PHILIPS [NXP Semiconductors]
Site Internet  http://www.nxp.com
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Philips Semiconductors
TDA8947J
4-channel audio amplifier
Preliminary data
Rev. 01 — 06 February 2004
10 of 24
9397 750 10779
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
[1]
The noise output voltage is measured at the output in a frequency range from 20 Hz to 22 kHz (unweighted), with a source impedance
Rsource =0 Ω at the input.
[2]
Supply voltage ripple rejection is measured at the output, with a source impedance Rsource =0 Ω at the input and with a frequency range
from 20 Hz to 22 kHz (unweighted). The ripple voltage is a sine wave with a frequency fripple and an amplitude of 300 mV (RMS), which
is applied to the positive supply rail.
[3]
Output voltage in mute mode is measured with VMODE1 =VMODE2 = 7 V, and Vi = 1 V (RMS) in a bandwidth from 20 Hz to 22 kHz,
including noise.
[1]
The noise output voltage is measured at the output in a frequency range from 20 Hz to 22 kHz (unweighted), with a source impedance
Rsource =0 Ω at the input.
[2]
Supply voltage ripple rejection is measured at the output, with a source impedance Rsource =0 Ω at the input and with a frequency range
from 20 Hz to 22 kHz (unweighted). The ripple voltage is a sine wave with a frequency fripple and an amplitude of 300 mV (RMS), which
is applied to the positive supply rail.
[3]
Output voltage in mute mode is measured with VMODE1 =VMODE2 = 7 V, and Vi = 1 V (RMS) in a bandwidth from 20 Hz to 22 kHz,
including noise.
SVRR
supply voltage ripple rejection
fripple = 1 kHz
[2] -60
-
dB
fripple = 100 Hz to 20 kHz
[2] -60
-
dB
Vo(mute)
output voltage in mute mode
[3] -
-
150
µV
αcs
channel separation
Rsource =0 Ω
50
60
-
dB
|Gv|
channel unbalance
-
-
1
dB
Table 9:
Dynamic characteristics SE…continued
VCC =18V; Tamb =25 °C; RL =4 Ω; f = 1 kHz; VMODE1 =VCC; VMODE2 =VCC; measured in test circuit Figure 12; unless
otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Table 10:
Dynamic characteristics BTL
VCC =18V; Tamb =25 °C; RL =8 Ω; f = 1 kHz; VMODE1 =VCC; VMODE2 =VCC; measured in test circuit Figure 12; unless
otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Po(BTL)
BTL output power
VCC = 18 V; see Figure 8b
THD = 10 %; RL =8 Ω
16
18
-
W
THD = 0.5 %; RL =8 Ω
-14
-
W
VCC =22V
THD = 10 %; RL =8 Ω
-29
-
W
THD
total harmonic distortion
Po = 1 W
-
0.05
0.5
%
Gv
voltage gain
31
32
33
dB
Zi
input impedance
20
30
-
k
Vn(o)
noise output voltage
[1] -
200
-
µV
SVRR
supply voltage ripple rejection
fripple = 1 kHz
[2] -65
-
dB
fripple = 100 Hz to 20 kHz
[2] -65
-
dB
Vo(mute)
output voltage in mute mode
[3] -
-
250
µV
αcs
channel separation
Rsource =0 Ω
50
65
-
dB
|Gv|
channel unbalance
-
-
1
dB




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