Texas Instruments Ultra-Low EMI, Filterless, 2.65W, Mono, Class D Audio Power Amplifier (LLP-8) LM4675SDBD/NOPB LM4675SDBD/NOPB 데이터 시트
제품 코드
LM4675SDBD/NOPB
10
100
1000
10000
100000
FREQUENCY (Hz)
T
H
D
+N
(%
)
0.001
0.01
0.1
1
10
100
10
100
1000
10000
100000
FREQUENCY (Hz)
T
H
D
+
N
(%
)
0.001
0.01
0.1
1
10
100
10
100
1000
10000
100000
FREQUENCY (Hz)
T
H
D
+
N
(%
)
0.001
0.01
0.1
1
10
100
0.001
0.01
0.1
1
10
100
10
100
1000
10000
100000
FREQUENCY (Hz)
T
H
D
+
N
(%
)
0.001
0.01
0.1
1
10
OUTPUT POWER (W)
T
H
D
+
N
(%
)
V
DD
= 5V
V
DD
= 3.6V
V
DD
= 3.0V
0.01
0.1
1
10
100
0.001
0.01
0.1
1
10
OUTPUT POWER (W)
T
H
D
+
N
(%
)
V
DD
= 5V
V
DD
= 3.6V
0.01
0.1
1
10
100
V
DD
= 3.0V
SNAS353C – AUGUST 2006 – REVISED MAY 2013
Typical Performance Characteristics
The performance graphs were taken using the Audio Precision AUX-0025 Switching Amplifier measurement Filter in series
with the LC filter on the demo board.
THD + N vs Output Power
THD + N vs Output Power
f = 1kHz, R
L
= 8
Ω
f = 1kHz, R
L
= 4
Ω
Figure 5.
Figure 6.
THD + N vs Frequency
THD + N vs Frequency
V
DD
= 2.5V, P
OUT
= 100mW, R
L
= 8
Ω
V
DD
= 3.6V, P
OUT
= 150mW, R
L
= 8
Ω
Figure 7.
Figure 8.
THD + N vs Frequency
THD + N vs Frequency
V
DD
= 5V, P
OUT
= 200mW, R
L
= 8
Ω
V
DD
= 2.5V, P
OUT
= 100mW, R
L
= 4
Ω
Figure 9.
Figure 10.
6
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