參數(shù)資料
型號(hào)： TDA8547T-T
廠商： NXP SEMICONDUCTORS
元件分類： 音頻／視頻放大
英文描述： 1.2 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO16
文件頁(yè)數(shù)： 23/24頁(yè)
文件大?。?/td> 182K
代理商： TDA8547T-T
1997 Oct 07
8
Philips Semiconductors
Preliminary specication
2
× 1 W BTL audio amplier with output
channel switching
TDA8547
AC CHARACTERISTICS
VCC =5V; Tamb =25 °C; RL =8 ; f = 1 kHz; VMODE = 0 V; gain = 20 dB; measured in BTL application circuit Fig.4;
unless otherwise specied.
Notes
1. Gain of the amplifier is
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 at the input.
3. Supply voltage ripple rejection is measured at the output, with a source impedance of RS =0 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 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 at the input and a frequency of
1 kHz. The output power in the operating channel is set to 0.5 W.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Po
output power
THD = 10%
1
1.2
W
THD = 0.5%
0.6
0.9
W
THD
total harmonic distortion
Po = 0.5 W
0.15
0.3
%
Gv
closed loop voltage gain
note 1
6
30
dB
Zi
differential input impedance
100
k
Vno
noise output voltage
note 2
100
V
SVRR
supply voltage ripple rejection
note 3
50
dB
note 4
40
dB
Vo
output voltage
note 5
200
V
αcs
channel separation
VSELECT = 0.5VCC; note 6 40
dB
2
R2
R1
--------
×
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參數(shù)描述
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