參數(shù)資料
型號(hào)： TDA8942P/N1,112
廠商： NXP SEMICONDUCTORS
元件分類： 音頻／視頻放大
英文描述： 1.5 W, 2 CHANNEL, AUDIO AMPLIFIER, PDIP16
封裝： 0.300 INCH, PLASTIC, SOT-38-1, MO-001, DIP-16
文件頁(yè)數(shù)： 22/22頁(yè)
文件大小： 394K
代理商： TDA8942P/N1,112
Philips Semiconductors
TDA8942P
2 x 1.5 W (3 W music power) stereo BTL audio amplier
Product data
Rev. 03 — 02 September 2003
9 of 22
9397 750 11707
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
12. Dynamic characteristics
[1]
Measured on 1 channel simultaneously.
[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
RS =0 at the input.
[3]
Supply voltage ripple rejection is measured at the output, with a source impedance RS =0 at the input. The ripple voltage is a sine
wave with a frequency fripple and an amplitude of 700 mV (RMS), which is applied to the positive supply rail.
[4]
Output voltage in mute mode is measured with an input voltage of 1 V (RMS) in a bandwidth of 20 kHz, so including noise.
Fig 3.
Quiescent supply current as function of supply
voltage.
Fig 4.
Quiescent supply current as function of mode
selection voltage.
handbook, halfpage
50
40
30
20
10
0
04
8
12
16
VCC (V)
Iq
(mA)
20
MGL990
handbook, halfpage
50
40
30
20
10
0
02
4
6
8
VMODE (V)
Iq
(mA)
10
12
MGL991
VCC = 11 V
9 V
Table 8:
Dynamic characteristics
VCC =9V; Tamb =25 °C; RL =8 ; f = 1 kHz; VMODE = 0 V; measured in test circuit Figure 14; audio pass band
22 Hz to 22 kHz; unless otherwise specied.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Po
output power
THD = 10 %; RL =16
1.2
1.5
-
W
THD = 10 %; RL =8
-W
THD = 0.5 %; RL =8
0.8
1
-
W
THD
total harmonic distortion
Po = 0.5 W
-
0.03
0.3
%
Gv
voltage gain
31
32
33
dB
Zi(dif)
differential input impedance
70
90
110
k
Vn(o)
noise output voltage
90
120
V
SVRR
supply voltage ripple rejection
fripple = 1 kHz
65
-
dB
fripple = 100 Hz to 20 kHz
[3] -60
-
dB
Vo(mute)
output voltage in mute mode
[4] --50
V
αcs
channel separation
RS =0
50
75
-
dB
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