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參數(shù)資料
| 型號(hào)： | TPA2010D1YZFT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 2.5 W, 2 CHANNEL, AUDIO AMPLIFIER, PBGA9 |
| 封裝： | 1.45 X 1.45 MM, GREEN, DSBGA-9 |
| 文件頁數(shù)： | 5/25頁 |
| 文件大小： | 783K |
| 代理商： | TPA2010D1YZFT |
www.ti.com
C
I2 u
1
2p 150kW 20Hz
(9)
C
I2 u
53 nF
(10)
_
+
IN-
IN+
PWM
H-
Bridge
VO+
VO-
Internal
Oscillator
CS
To Battery
VDD
GND
Bias
Circuitry
RI2
Differential
Input 1
Filter-Free Class D
SHUTDOWN
RI1
Single-Ended
Input 2
CI2
Summing Two Single-Ended Input Signals
Gain 1 +
V
O
V
I1
+
2 x 150 kW
R
I1
V
(11)
Gain 2 +
V
O
V
I2
+
2 x 150 kW
R
I2
V
(12)
C
I1 +
1
2p R
I1
f
c1
(13)
C
I2 +
1
2p R
I2
f
c2
(14)
C
P +
C
I1 )
C
I2
(15)
R
P +
R
I1
R
I2
R
I1 )
R
I2
(16)
SLOS417C – OCTOBER 2003 – REVISED SEPTEMBER 2007
Figure 31. Application Schematic With TPA2010D1 Summing Differential Input and Single-Ended Input
Signals
Four resistors and three capacitors are needed for summing single-ended input signals. The gain and corner
frequencies (fc1 and fc2) for each input source can be set independently (see Equation 11 through Equation 14,
and Figure 32). Resistor, RP, and capacitor, CP, are needed on the IN+ terminal to match the impedance on the
IN– terminal. The single-ended inputs must be driven by low impedance sources even if one of the inputs is not
outputting an ac signal.
Copyright 2003–2007, Texas Instruments Incorporated
13
Product Folder Link(s): TPA2010D1
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