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Portable, battery-powered operation of electronic apparatushas become increasingly desirable. Medical, remotedata acquisition, power monitoring and other applicationsare good candidates for battery operation. In some circumstances,due to space, power or reliability considerations,it is preferable to operate the circuitry from a single 1.5Vcell. Unfortunately, a 1.5V supply eliminates almost alllinear ICs as design candidates. In fact, the LM10 opamp-reference and the LT®1017/LT1018 comparators arethe only IC gain blocks fully specifi ed for 1.5V operation.Further complications are presented by the 600mV dropof silicon transistors and diodes. This limitation consumesa substantial portion of available supply range, makingcircuit design diffi cult. Additionally, any circuit designedfor 1.5V operation must function at end-of-life batteryvoltage, typically 1.3V. (See Box Section, “Componentsfor 1.5V Operation.”)
標(biāo)簽：
Circuitry
Operation
Single
1017
上傳時(shí)間：
2013-12-20
上傳用戶：Wwill
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Radio Frequency Integrated Circuit Design
I enjoyed reading this book for a number of reasons. One reason is that itaddresses high-speed analog design in the context of microwave issues. This isan advanced-level book, which should follow courses in basic circuits andtransmission lines. Most analog integrated circuit designers in the past workedon applications at low enough frequency that microwave issues did not arise.As a consequence, they were adept at lumped parameter circuits and often notcomfortable with circuits where waves travel in space. However, in order todesign radio frequency (RF) communications integrated circuits (IC) in thegigahertz range, one must deal with transmission lines at chip interfaces andwhere interconnections on chip are far apart. Also, impedance matching isaddressed, which is a topic that arises most often in microwave circuits. In mycareer, there has been a gap in comprehension between analog low-frequencydesigners and microwave designers. Often, similar issues were dealt with in twodifferent languages. Although this book is more firmly based in lumped-elementanalog circuit design, it is nice to see that microwave knowledge is brought inwhere necessary.Too many analog circuit books in the past have concentrated first on thecircuit side rather than on basic theory behind their application in communications.The circuits usually used have evolved through experience, without asatisfying intellectual theme in describing them. Why a given circuit works bestcan be subtle, and often these circuits are chosen only through experience. Forthis reason, I am happy that the book begins first with topics that require anintellectual approach—noise, linearity and filtering, and technology issues. Iam particularly happy with how linearity is introduced (power series). In therest of the book it is then shown, with specific circuits and numerical examples,how linearity and noise issues arise.
標(biāo)簽：
Rogers
Radio
John
Freq
上傳時(shí)間：
2014-12-23
上傳用戶：han_zh
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Abstract: This application note illustrates an intermediate 8V switching power supply for an automotive radio and infotainment system.The design withstands the complete automotive input voltage range (including cold crank and load dump conditions), assuring a stable8V supply for common subsystems such as a CD driver, LCDs, and a radio module in modern infotainment systems. To avoiddisturbance in the AM and FM bands, the switching power supply runs at a fixed frequency of 2MHz, enabling an ideal solution forradio systems.
標(biāo)簽：
汽車(chē)無(wú)線電
信息娛樂(lè)系統(tǒng)
開(kāi)關(guān)電源
上傳時(shí)間：
2013-11-20
上傳用戶：feitian920
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Abstract: This document details the Lakewood (MAXREFDES7#) subsystem reference design, a 3.3V input, ±12V (±15V) output, isolated power supply. The Lakewood reference design includes a 3W primary-side transformer H-bridge driver for isolated supplies, and two wide input range and adjustable output low-dropout linear regulators (LDOs). Test results and hardware files are included.
標(biāo)簽：
MAXREFDES
Lakewood
Isolated
Output
上傳時(shí)間：
2013-11-02
上傳用戶：fengzimili
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Abstract: This document details the Riverside (MAXREFDES8#) subsystem reference design, a 3.3V input, 12V (15V) output, isolated power supply. The Riverside reference design includes a 3W primary-side transformer H-bridge driver for isolated supplies, and one wide input range and adjustable output low-dropout linear regulator (LDO). Test results and hardware files are included.
標(biāo)簽：
Riverside
MAXREFDES
Isolated
Output
上傳時(shí)間：
2013-11-16
上傳用戶：會(huì)稽劍客
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Abstract: This document details the Oceanside (MAXREFDES9#) subsystem reference design, a 3.3V to 15V input,±15V (±12V) output, isolated power supply. The Oceanside design includes a high-efficiency step-up controller, a36V H-bridge transformer driver for isolated supplies, a wide input range, and adjustable output low-dropout linearregulator (LDO). Test results and hardware files are included.
標(biāo)簽：
隔離電源
設(shè)計(jì)手冊(cè)
上傳時(shí)間：
2013-10-12
上傳用戶：jinyao
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特點(diǎn)（FEATURES） 精確度0.1%滿刻度（Accuracy 0.1%F.S.） 多種輸入輸出選擇（Wide selection of input/output range） 三線式接線自動(dòng)補(bǔ)償線路阻抗效應(yīng)（3 wire configuration automatically compensate line resistance effects） 寬范圍交直流兩用電源設(shè)計(jì)（Wide input range for auxiliary power） 尺寸小，穩(wěn)定性高（Dimension small & High stability）
標(biāo)簽：
電阻式
溫度
傳送器
隔離
上傳時(shí)間：
2013-10-17
上傳用戶：Huge_Brother
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特點(diǎn)（FEATURES） 精確度0.1%滿刻度（Accuracy 0.1%F.S.） 寬輸入范圍200ohm 至 50Kohm（Wide inpuet ranges from 200ohm to 50Kohm） 多種輸入輸出選擇（Wide selection of input/output range） 輸入與輸出1/輸出2絕緣耐壓 2仟伏特/1分鐘（Dielectric strength 2KVac/1min.（input/output1/output2）） 寬范圍交直流兩用電源設(shè)計(jì)（Wide input range for auxiliary power） 尺寸小，穩(wěn)定性高（Dimension small & High stability）
標(biāo)簽：
電位計(jì)
傳送器
隔離
輸出
上傳時(shí)間：
2013-10-28
上傳用戶：sardinescn
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特點(diǎn)（FEATURES） 精確度0.1%滿刻度（Accuracy 0.1%F.S.） 多種輸入輸出選擇（Wide selection of input/output range） 輸入與輸出1/輸出2絕緣耐壓 2仟伏特/1分鐘（Dielectric strength 2KVac/1min.（input/output1/output2）） 寬范圍交直流兩用電源設(shè)計(jì)（Wide input range for auxiliary power） 尺寸小，穩(wěn)定性高（Dimension small & High stability）
標(biāo)簽：
直流信號(hào)
傳送器
隔離
輸出
上傳時(shí)間：
2014-12-24
上傳用戶：qimingxing130
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特點(diǎn)（FEATURES） 精確度0.03%滿刻度（Accuracy 0.03%F.S.） 頻率輸入范圍0.01Hz至80KHz（Input range from 0.01 Hz to 80KHz） 16 BIT 隔離類(lèi)比輸出（16 bit DAC isolating analog output） 輸入與輸出1/輸出2絕緣耐壓 2仟伏特/1分鐘（Dielectric strength 2KVac/1min.（input/output1/output2）） 寬范圍交直流兩用電源設(shè)計(jì)（Wide input range for auxiliary power） 尺寸小，穩(wěn)定性高（Dimension small & High stability）
標(biāo)簽：
微電腦
傳送器
頻率
隔離
上傳時(shí)間：
2013-10-21
上傳用戶：dljwq
