參數(shù)資料
型號: TPA721DGNRG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 音頻/視頻放大
英文描述: 0.7 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8
封裝: GREEN, PLASTIC, MSOP-8
文件頁數(shù): 22/26頁
文件大小: 663K
代理商: TPA721DGNRG4
www.ti.com
TYPICAL CHARACTERISTICS
50
60
80
100
20
100
1k
30
20
f Frequency Hz
0
10k
20k
10
40
70
90
VDD = 5 V
VDD = 3.3 V
RL = 8
CB = 1 F
BTL
k
SVR
Supply
Ripple
Rejection
Ratio
dB
VDD Supply Voltage V
1.8
0.8
0.6
1
3
4
5.5
5
I DD
Supply
Current
mA
2.5
3.5
4.5
1.6
1.2
1.4
SHUTDOWN = 0 V
RF = 10 k
TPA721
SLOS231E – NOVEMBER 1998 – REVISED JUNE 2004
Table of Graphs
FIGURE
kSVR
Supply ripple rejection ratio
vs Frequency
2
IDD
Supply current
vs Supply voltage
3, 4
vs Supply voltage
5
PO
Output power
vs Load resistance
6
vs Frequency
7, 8, 11, 12
THD+N
Total harmonic distortion plus noise
vs Output power
9, 10, 13, 14
Open-loop gain and phase
vs Frequency
15, 16
Closed-loop gain and phase
vs Frequency
17, 18
Vn
Output noise voltage
vs Frequency
19, 20
PD
Power dissipation
vs Output power
21, 22
SUPPLY RIPPLE REJECTION RATIO
SUPPLY CURRENT
vs
FREQUENCY
SUPPLY VOLTAGE
Figure 2.
Figure 3.
5
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