TDA8944J 데이터 시트보기 (PDF) - NXP Semiconductors.
부품명
상세내역
제조사
TDA8944J Datasheet PDF : 22 Pages
| |||
NXP Semiconductors
TDA8944J
2 x 7 W stereo BTL audio amplifier
50
handbook, halfpage
Iq
(mA)
40
MGL954
50
handbookI,qhalfpage
(mA)
40
MGL955
30
30
20
20
VCC = 12 V
10
10
0
0
4
8
12
16
20
VCC (V)
Fig 3. Quiescent current as function of supply
voltage.
0
0
4
8
12
16
20
VMODE (V)
Fig 4. Quiescent current as function of mode voltage.
12. Dynamic characteristics
Table 8: Dynamic characteristics
VCC = 12 V; Tamb = 25 °C; RL = 8 Ω; f = 1 kHz; VMODE = 0 V; measured in test circuit Figure 14; audio pass band
22 Hz to 22 kHz; unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Po
output power
THD = 10%
6
7
-
THD = 0.5%
4
5
-
THD
total harmonic distortion
Po = 1 W
-
0.03
0.1
Gv
voltage gain
31
32
33
Zi(dif)
Vn(o)
SVRR
differential input impedance
70
90
110
noise output voltage
[1] -
90
120
supply voltage ripple rejection
fripple = 1 kHz
[2] 50
65
-
fripple = 100 Hz
to 20 kHz
[2] -
60
-
Vo(mute)
αcs
output voltage
channel separation
mute mode
Rs = 0 Ω
[3] -
-
50
50
75
-
Unit
W
W
%
dB
kΩ
μV
dB
dB
μV
dB
[1] 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 Ω at the input.
[2] Supply voltage ripple rejection is measured at the output, with a source impedance Rs = 0 Ω at the input. The ripple voltage is a sine
wave with a frequency fripple and an amplitude of 707 mV (RMS), which is applied to the positive supply rail.
[3] Output voltage in mute mode is measured with an input voltage of 1 V (RMS) in a bandwidth of 20 kHz, so including noise.
9397 750 06861
Product specification
Rev. 02 — 14 February 2000
© NXP B.V. 2010. All rights reserved.
8 of 22
Share Link: 