LX1721 データシートの表示（PDF） - Microsemi Corporation
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LX1721 Datasheet PDF : 14 Pages
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INTEGRATED PRODUCTS
AudioMAX™
LX1721 / 1722
Class-D Stereo Power Amplifier Controller
PRODUCTION
CHARACTERISTIC CURVES (CONTINUED)
dx=-17.869 kHz
+10
+8
dy=-0.155 dB
+6
+4
+2
+0
--01..916159
-2
-4
-6
-8
-10
10
18.220
50
100
200
500
1k
2k
Frequency (Hz)
5k
10k 17.887250k
50k 80k
FIGURE 8 – FREQUENCY RESPONSE
VIN = 15V
RL = 4Ω
PO = 1WRMS
dx=-17.869 kHz
+10
dy=+0.170 dB
+8
+6
+4
+2
+0
--11..640366-2
-4
-6
-8
-10
10
18.220
50
100
200
500
1k
2k
Frequency (Hz)
5k
10k 17.887250k
50k 80k
FIGURE 9 – FREQUENCY RESPONSE
VIN = 25V
RL = 4Ω
PO = 1WRMS
dx=-2.9880 kHz
+10
+0
dy=+3.205 dB
-10
-20
-30
-40
-50
-60
-70
-80
-90
--9948..9-1112060
-110
-120
-130
-140
-150
20
50
100
200
500
.973913k2k
Frequency (Hz)
2k
3.96192k 5k
10k
20k
FIGURE 10 – NOISE FLOOR FFT
VIN = 15V
RL = 4Ω
10Hz – 22kHz Bandwidth
A-weighted
Copyright © 2001
Rev. 1.2a,2004-06-10
Microsemi
Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 10
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