參數(shù)資料
型號(hào)： IRAUDAMP5
廠商： International Rectifier
英文描述： 120W x 2 Channel Class D Audio Power Amplifier Using the IRS2092S and IRF6645
中文描述： 120瓦× 2通道D類音頻功率放大器使用IRS2092S和IRF6645
文件頁(yè)數(shù)： 26/49頁(yè)
文件大?。?/td> 1416K
代理商： IRAUDAMP5
1) The DC resistance of the inductor should be minimized to 20 mOhms or less.
2) The linearity of the output inductor and capacitor should be high with respect to load
current and voltage.
Preamplifier
(Fig 28)
The preamp allows partial gain of the input signal, and controls the volume in the IRAUDAMP5.
The preamp itself will add distortion and noise to the input signal, resulting in a gain through the
Class D output stage and appearing at the output. Even a few micro-volts of noise can add
significantly to the output noise of the overall amplifier.
J5
4.7R
R13
3.3K
R31
47k 1%
J6
R4
100R
R14
3.3K
R32
47k 1%
R34
1K
R33
1K
C17
150pF, 500V
CH2 IN
CH1 IN
R3
100R
R1
100K
C2
10uF, 50V
C3
10uF, 50V
R2
100K
R6
4.7R
C5
10uF, 50V
C6
10uF, 50V
R55
0.0
R56
0.0
Feedback
Audio in
Audio in
R71
OPEN
R72
OPEN
1
2
3
4
5
6
J1A
7
8
9
10
11
12
J1B
ZCEN
1
CS
2
SDATAI
3
VD+
4
DGRD
5
SCLK
6
SDATAO
7
MUTE
8
AINL
16
AGNDR
10
AOUTL
14
VA-
13
VA+
12
AOUTR
11
AGNDL
15
AINR
9
U_
CS3310
Feedback
IRS2092S MODULE
Preamplifier
Fig28
-5V
+5V
SD
IN-1
VCC
VCC
OC
IN-2
+5V
-5V
-5V
It is possible to evaluate the performance without the preamp and volume control, by moving
resistors R13 and R14 to R71 and R72, respectively. This effectively bypasses the preamp and
connects the RCA inputs directly to the Class D power stage input. Improving the selection of
preamp and/or output filter components will improve the overall system performance,
approaching that of the stand-alone
Class D power stage. In the “Typical Performance” section,
only limited data for the stand-alone Class D power stage is given. For example, Fig 20 below
shows the results for THD+N vs. Output Power are provided, utilizing a range of different
inductors. By changing the inductor and repeating this test, a designer can quickly evaluate a
particular inductor.
www.irf.com
Page 25 of 49
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參數(shù)描述
IRAUDAMP6 制造商:International Rectifier 功能描述:AUDIO REFERENCE DESIGN KIT FEATURING IRS20957 - Boxed Product (Development Kits) 制造商:International Rectifier 功能描述:BOARD EVAL FOR IRS20957S
IRAUDAMP7D 功能描述:放大器 IC 開(kāi)發(fā)工具 25W - 500W Scalable IRS2092 2-Ch BRD RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類型:Power Amplifiers 工具用于評(píng)估:IR4302 工作電源電壓:13 V to 23 V
IRAUDAMP7S 功能描述:放大器 IC 開(kāi)發(fā)工具 25W - 500W Scalable IRS2092 Half BRG BRD RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類型:Power Amplifiers 工具用于評(píng)估:IR4302 工作電源電壓:13 V to 23 V
IRAUDAMP8 功能描述:放大器 IC 開(kāi)發(fā)工具 120W x 4 Ch Class D IRS2053M IRF665 BRD RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類型:Power Amplifiers 工具用于評(píng)估:IR4302 工作電源電壓:13 V to 23 V
IRAUDAMP9 功能描述:音頻 IC 開(kāi)發(fā)工具 1.7kW 2ohm Class-D IRS2092 IRFB4227 BRD RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V
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