參數(shù)資料
型號(hào)： AN-1192
廠商： National Semiconductor Corporation
英文描述： broad portfolio of monolithic power integrated circuits covering power levels
中文描述： 豐富的產(chǎn)品組合覆蓋功率級(jí)別單片功率集成電路
文件頁(yè)數(shù)： 7/21頁(yè)
文件大?。?/td> 548K
代理商： AN-1192
5.0 BR100—100W Bridge Circuit
(Continued)
As always, the better the supply bypassing, the better the
noise rejection and hence higher performance.
6.0 PA100—100W Parallel Circuit
6.1 AUDIO TESTING
The following graphs are the same format as those pre-
sented in the BR100 analysis, namely THD+N verses Fre-
quency at 1W, 56W and 100W and THD verses Output
Power with plots at 20Hz, 1kHz, and 20kHz.
6.1.1 Linearity Test
The linearity of the amplifier is represented by the low
THD+N values shown in Figures 4, 5. Figure 4 represents
the THD+N vs Frequency for 1W, 56W and 100W power
levels. The 20kHz THD+N is less than 0.05% for all power
levels. Figure 5 represents the THD+N vs Output Power
Level for 20Hz, 1kHz, and 20kHz. The THD+N between
20Hz and 1kHz is less than 0.01% for power levels above
1W up to the clipping point. The 20kHz THD+N is 0.04%
from 0.1W to the clipping point. The 1% THD+N power point
is around 110W while the 10% THD+N power point is near
150W. These THD+N graphs were obtained using relative
THD+N units, which indicates that the noise level for the
amplifier is very low. Typically, the noise level becomes a
significant THD+N contributor at lower power levels and
shows up as a linearly decreasing function of increasing
input signal amplitude. The low power level THD+N for this
amplifier configuration is more than acceptable for home
entertainment applications.
Figure 6 represents the parallel amplifier schematic. The
design is extremely simple, consisting of two power op amps
configured identically and tied in parallel to the load each
through a 0.1
/3W resistor. The closer matched the gain of
each IC the more equal the current sharing between them as
well as the temperature of each IC due to power dissipation
being near equal. This document will not go further into the
functionality of the circuit as it is well known in industry.
PA100 THD+N vs Frequency
R
= 4
, V
=
±
35V,
BW
<
80kHz, P
O
= 1W, 56W, 100W
20015117
FIGURE 4. THD+N vs Frequency
PA100 THD+N vs Output Power
f = 20Hz, 1kHz, 20kHz,
R
L
= 4
, V
CC
=
±
35V, BW
<
80kHz
20015118
FIGURE 5. THD+N vs Output Power
A
www.national.com
7
相關(guān)PDF資料
PDF描述
AN-136 A NEW GENERATION OF TAG SRAMS?THE IDT71215 AND
AN-242 LJT 18C 18#20 SKT RECP
AN-40 Application Note 40
AN-5002 LJT 18C 18#20 SKT WALL RECP
AN-5025 Applications Using the GTLP10B320
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AN12-008-5 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC
AN12012 制造商:BEL 制造商全稱:Bel Fuse Inc. 功能描述:Network Connector Interfaces and Differential to Common Mode Conversion
AN1201SM 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:Polarity inverting charge pump DC/DC converter IC
AN1201SM_06 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:Polarity inverting charge pump DC/DC converter IC
AN1201SM-TXL 功能描述:IC REG SWITCHED CAP INV SMINI-5 RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類型:升壓（升壓） 輸出類型:兩者兼有 輸出數(shù):1 輸出電壓:5V，2 V ~ 16.5 V 輸入電壓:2 V ~ 16.5 V PWM 型:- 頻率 - 開關(guān):45kHz 電流 - 輸出:50mA 同步整流器:無(wú) 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:8-DIP（0.300"，7.62mm） 包裝:管件 供應(yīng)商設(shè)備封裝:8-PDIP
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*