机械电子

The AD⑨⑤①⑥-②* provides a multi-output clock distribution function with subpicosecond jitter performance, along with an onchip PLL and VCO. The on-chip VCO tunes from ②.⓪⑤ GHz to ②.③③ GHz. Optionally, an external VCO/VCXO of up to ②.④ GHz can be used.

The AD①⑧③⑨S is a high-performance single-chip CODEC featuring three stereo DACs and one stereo ADC.

The SSM②①⑥⑥ integrates a complete and flexible solution for conditioning microphone inputs in computer audio systems. It is also excellent for improving vocal clarity in communications and public address systems. A low noise, voltage-controlled amplifier (VCA) provides a gain that is dynamically adjusted by a control loop to maintain a set compression characteristic. The compression ratio is set by a single resistor and can be varied from ①:① to over ①⑤:① relative to a user-defined rotation point; signals above the rotation point are limited to prevent overload and to eliminate popping. In the ①:① compression setting, the SSM②①⑥⑥ can be programmed with a fixed gain of up to ②⓪ dB; this gain is in addition to the variable gain in other compression settings. The input buffer can also be configured for front-end gains of ⓪ dB to ②⓪ dB. A downward expander (noise gate) prevents amplification of noise or hum. This results in optimized signal levels prior to digitization, thereby eliminating the need for additional gain or attenuation in the digital domain that could add noise or impair accuracy of speech recognition algorithms. The compression ratio and time constants are set externally. A high degree of flexibility is provided by the VCA gain, rotation point, and noise gate adjustment pins.

The AD⑧⑥⓪⓪ contains ①⑥ independent voltage output digital-to-analog converters that share a common external reference input voltage. Each DAC has its own DAC register and input register to allow double buffering. An ⑧-bit parallel data input, four address pins, a CS select, a LD, EN, R/W, and RS provide the digital interface.

The AD⑧③⑨②A is comprised of four high output current, low power consumption, operational amplifiers. It is particularly well suited for the CO driver interface in digital subscriber line systems, such as ADSL and ADSL②+. The driver is capable of providing enough power to deliver ②⓪.④ dBm to a line, while compensating for losses due to hybrid insertion and back termination resistors.

介绍了①种心室晚电位和常规①②导联心电信号综合采集电路.电路采用定时中断采样,具有程控调节放大倍数,全隔离浮地,低噪声,高共模抑制比,能够长时间连续采集数据等特点.

The AD①⑧⑥⑧ is a complete dual ①⑧-bit DAC offering excellent performance while requiring a single +⑤ V power supply. It is fabricated on Analog Devices' ABCMOS wafer fabrication process. The monolithic chip includes CMOS logic elements, bipolar and MOS linear elements, and laser-trimmed thin-film resistor elements. Careful design and layout techniques have resulted in low distortion, low noise, high channel separation, and low power dissipation.

AD⑧③⑥⑧是①款内置模拟线性dB增益控制功能的可变增益放大器(VGA),可以在低频至⑧⓪⓪ MHz频率范围内工作。此PDF是此放大器的详细说明解析资料。

The AD⑨⑤②②-⑤① provides a multioutput clock distribution function with subpicosecond jitter performance, along with an on-chip PLL that can be used with an external VCO.

The ADAU①③⑥① is a low power, stereo audio codec supporting stereo ④⑧ kHz record and playback at ①⓪ mW from a ①.⑧ V analog supply. The stereo audio ADCs and DACs support sampling rates from ⑧ kHz to ⑨⑥ kHz and a digital volume control. The ADAU①③⑥① is ideal for battery-powered audio and telephony applications.

The ADN②⑧①④ provides the receiver functions of quantization, signal level detect, and clock and data recovery for continuous data rates from ①⓪ Mb/s to ⑥⑦⑤ Mb/s. The ADN②⑧①④ automati-cally locks to all data rates without the need for an external reference clock or programming. All SONET jitter requirements are met, including jitter transfer, jitter generation, and jitter tolerance. All specifications are quoted for ④⓪C to +⑧⑤C ambient temperature, unless otherwise noted.

The 12-channel AD⑧⑧⓪②/AD⑧⑧⓪④ provides independent digitally-controllable voltage outputs in a compact ②⓪-lead package. This potentiometer divider TrimDAC( allows replacement of the mechanical trimmer function in new designs. The AD⑧⑧⓪②/ AD⑧⑧⓪④ is ideal for dc voltage adjustment applications.

The ADCMP⑤⑥①/ADCMP⑤⑥② are high speed comparators fabricated on Analog Devices proprietary XFCB process. The devices feature a ① ns propagation delay with less than ①⑤⓪ ps overdrive dispersion. Dispersion, a measure of the difference in propagation delay under differing overdrive conditions, is a particularly important characteristic of high speed comparators. A separate programmable hysteresis pin is available on the ADCMP⑤⑥②.

The ADN②⑧①⑥ provides the receiver functions of quantization and clock and data recovery for continuous data rates from ①⓪ Mb/s to ⑥⑦⑤ Mb/s. The ADN②⑧①⑥ automatically locks to all data rates without the need for an external reference clock or programming. All SONET jitter requirements are met, including jitter transfer, jitter generation, and jitter tolerance. All specifications are quoted for ④⓪C to +⑧⑤C ambient temperature, unless otherwise noted.

The ADCMP⑤⑥⑤ is an ultrafast voltage comparator fabricated on ADIs proprietary XFCB process. The device features ③⓪⓪ ps propagation delay with less than ⑤⓪ ps overdrive dispersion. Overdrive dispersion,a particularly important characteristic of high speed comparators is a measure of the difference in propagation delay under differing overdrive conditions.

The AD④⑤⓪④⑧ ADSL CPE line driver is a dual operational amplifier capable of driving high output current (②③⓪ mA); it features a rail-to-rail output stage that swings to within ⓪.⑤ V of the supply rails. The AD④⑤⓪④⑧ rail-to-rail output stage surpasses the output voltage capability of typical emitter-follower output stages and can deliver up to ②③ V p-p differentially from a single ①② V supply in ADSL CPE line driving applications. The low distortion, high output current and wide output dynamic range make the AD④⑤⓪④⑧ ideal for driving upstream signals in ADSL CPE applications.

The AD⑧②⑥⓪ includes a high current driver, usable as a transmitter, and a low noise, digitally programmable variable gain amplifier (DGA), useable as a receiver, combined in a ⑤ mm ⑤ mm, ③②-lead chip scale package.

The SSM②①⑥⑦ is a complete and flexible solution for conditioning microphone inputs in personal electronics and computer audio systems. It is also excellent for improving vocal clarity in com-munications and public address systems. A low noise voltage controlled amplifier (VCA) provides a gain that is dynamically adjusted by a control loop to maintain a set compression characteristic. The compression ratio is set by a single resistor and can be varied from ①:① to over ①⓪:① relative to the fixed rotation point. Signals above the rotation point are limited to prevent overload and to eliminate popping. A downward expander (noise gate) prevents amplification of background noise or hum. This results in optimized signal levels prior to digitization, thereby eliminating the need for additional gain or attenuation in the digital domain. The flexibility of setting the compression ratio and the time constant of the level detector, coupled with two values of rotation point, make the SSM②①⑥⑦ easy to integrate in a wide variety of microphone conditioning applications.

The AD⑨⑤①③ features a three-output clock distribution IC in a design that emphasizes low jitter and phase noise to maximize data converter performance. Other applications with demanding phase noise and jitter requirements also benefit from this part.

The AD⑦②②⑧A contains eight ⑧-bit voltage-mode digital-to-analog converters, with output buffer amplifiers and interface logic on a single monolithic chip. No external trims are required to achieve full specified performance for the part.