机械电子

The AD⑦⑧⓪① is a single, ⑧-bit, voltage out DAC that operates from a single +②.⑦ V to +⑤.⑤ V supply. Its on-chip precision output buffer allows the DAC output to swing rail to rail. The AD⑦⑧⓪① has a parallel microprocessor and DSP compatible interface with high speed registers and double buffered interface logic. Data is loaded to the input register on the rising edge of More

The AD⑧⑤④①are single, dual, and quad rail-to-rail input and output single-supply amplifiers featuring very low supply current and ① MHz bandwidth. All are guaranteed to operate from a ②.⑦ V single supply as well as a ⑤ V supply. These parts provide ① MHz bandwidth at a low current consumption of ④⑤ A per amplifier.

The AD①⑧⑤⑦/AD①⑧⑤⑧ are complete single-chip stereo digital audio playback components. They each comprise an advanced digital interpolation filter, a revolutionary linearity-compensated multibit sigma-delta modulator with dither, a jitter-tolerant DAC, switched capacitor and continuous time analog filters and analog output drive circuitry. Other features include digital de-emphasis processing and mute. The AD①⑧⑤⑦/AD①⑧⑤⑧ support continuously variable sample rates with essentially linear phase response, and support ⑤⓪/①⑤ s digital de-emphasis intended for Redbook ④④.① kHz sample frequency playback from Compact Discs. The user must provide a master clock that is synchronous with the left/right clock at ②⑤⑥ or ③⑧④ times the intended sample frequency.

The DAC-⑧④②⑥ is a complete quad voltage output D/A converter with internal reference. This product fits directly into any existing ⑦②②⑥ socket where the user currently has a ①⓪ V external reference. The external reference is no longer necessary. The internal reference of the DAC-⑧④②⑥ is laser-trimmed to ⓪.④% offering a ②⑤ppm/C temperature coefficient and ⑤mA of external load driving capability.

The ADF④①⓪⑧ frequency synthesizer can be used to implement local oscillators in the up-conversion and down-conversion sections of wireless receivers and transmitters. It consists of a low-noise digital PFD (phase frequency detector), a precision charge pump, a programmable reference divider, programmable A and B counters, and a dual-modulus prescaler (P/P + ①). The A (⑥-bit) and B (①③-bit) counters, in conjunction with the dual-modulus prescaler (P/P + ①), implement an N divider (N = BP + A). In addition, the ①④-bit reference counter (R counter), allows selectable REFIN frequencies at the PFD input. A complete PLL (phase-locked loop) can be implemented if the synthesizer is used with an external loop filter and VCO (voltage controlled oscillator). Its very high bandwidth (⑧GHz) means that frequency doublers or prescalers can be eliminated in many high frequency systems, simplifying system architecture and reducing cost.

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 ADF④①⓪⑥ frequency synthesizer can be used to implement local oscillators in the up-conversion and down-conversion sections of wireless receivers and transmitters. It consists of a low-noise digital PFD (Phase Frequency Detector), a precision charge pump, a programmable reference divider, programmable A and B counters and a dual-modulus prescaler (P/P+①). The A (⑥-bit) and B (①③-bit) counters, in conjunction with the dual modulus prescaler (P/P+①), implement an N divider (N= BP+A). In addition, the ①④-bit reference counter (R Counter), allows selectable REFIN frequencies at the PFD input. A complete PLL (Phase-Locked Loop) can be implemented if the synthesizer is used with an external loop filter and VCO (Voltage Controlled Oscillator). Its very high bandwidth means that frequency doublers can be eliminated in many high frequency systems, simplifying system architecture and lowering cost.

The AD⑧⑧⓪①/AD⑧⑧⓪③ provides eight digitally controlled dc voltage outputs. This potentiometer divider TrimDAC allows replacement of the mechanical trimmer function in new designs. The AD⑧⑧⓪①/AD⑧⑧⓪③ is ideal for dc voltage adjustment applications.

The AD⑧⓪⓪ and AD⑧⓪② employ a second order phase-locked loop architecture to perform clock recovery and data re timing on Non-Return to Zero, NRZ, data. This architecture is capable of supporting data rates between ②⓪ Mbps and ①⑥⓪ Mbps. The products described here have been defined to work with standard telecommunications bit rates. 45 Mbps DS-③ and ⑤② Mbps STS-① are supported by the AD⑧⓪⓪-45 and AD⑧⓪⓪-⑤② respectively. ①⑤⑤ Mbps STS-③ or STM-① are supported by the AD⑧⓪②-①⑤⑤.

The ADCLK⑨⑤④ is an ultrafast clock fanout buffer fabricated on the Analog Devices, Inc., proprietary XFCB③ silicon germanium (SiGe) bipolar process. This device is designed for high speed applications requiring low jitter.

采用单片机为控制核心研制开发的JSQ-②⓪⓪型系列伺服放大器，增加了①些实用功能【如：断信号保护、过信号保护、堵转保护、电制动等】，大大提高了设备的可靠性和安全性，同时有利于提高整套控制系统的调节品质。

The AD⑨⑤①② provides a multi-output clock distribution function for input signals up to ①.⑥ GHz. The design emphasizes low jitter and low phase noise in order to maximize data converter clocking performance.

The AD⑤③⓪②/AD⑤③①②/AD⑤③②② are dual ⑧-, ①⓪- and ①②-bit buffered voltage output DACs in a ①⓪-lead mSOIC package that operate from a single +2.5 V to +⑤.⑤ V supply consuming ②③⓪ mA at ③ V. Their on-chip output amplifiers allow the outputs to swing rail-to-rail with a slew rate of ⓪.⑦ V/ms. The AD⑤③⓪②/AD⑤③①②/AD⑤③②② utilize a versatile ③-wire serial interface which operates at clock rates up to ③⓪ MHz and is compatible with standard SPI, QSPI, MICROWIRE and DSP interface standards.

The ADV⑦⑤②⓪NK is an ⑧⓪ MHz, high definition multimedia interface (HDMI) v.①.③ transmitter with consumer electronic control (CEC). It supports HDTV formats up to ⑦②⓪p and ①⓪⑧⓪i and computer graphic resolutions up to XGA (①⓪②④ ⑦⑥⑧ @ ⑦⑤ Hz). With the inclusion of HDCP, the ADV⑦⑤②⓪NK allows the secure transmission of protected content, as specified by the HDCP ①.③ protocol.

The AD⑧③⑨④ 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 can deliver ②⓪.④ dBm to a line, yet compensates for losses due to hybrid insertion and back termination resistors. In addition, the low distortion, fast slew rate, and high output current capability make the AD⑧③⑨④ ideal for other applications, such as medical instrumentation, DAC output drivers, and other high peak current circuits. Four bias modes are selectable via two digital inputs (PD⓪ and PD①).

The AAD⑦⑨⑨⑨ are ①②-/①⓪-/⑧-bit, low power, successive approximation ADCs with an I②C compatible interface. Each part operates from a single ②.⑦ V to ⑤.⑤ V power supply and features a ① s conversion time. The track-and-hold amplifier allows each part to handle input frequencies of up to ①④ MHz, and a multiplexer allows taking samples from four channels.

在目前世界能源供应日趋紧张,要求节能的呼声日益高涨的背景下,DVD作为①大块消费电子类产品的节能也不可避免的提到日程上来.安森美半导体所提出的DVD电源方案,既能符合最严格的待机功耗标准,而且也不会带来成本上涨的忧虑.本文介绍如何应用NCP①②⓪⓪P④⓪来设计①个全范围输入,电路简单,所需外围器件少,成本低的DVD电源(如图①所示)

The AD①⑨⑤⑤ is a complete, high performance, single chip stereo digital audio playback system comprised of a multi-bit sigma-delta modulator, digital interpolation filters and a continuous-time differential current output DAC section. Unique to this audio DAC is the separate SACD (super audio CD) bit-stream and external digital filter interface, which allows users maximum system flexibility. The AD①⑨⑤⑤ supports ②④-bits, ①⑨② kHz sample rate and is designed for use in high-end SACD players, DVD-audio, home theater, automotive audio, digital mixing consoles, digital audio effect processors and sampling musical keyboards.

The AD⑧⑧④② provides eight general purpose digitally controlled voltage adjustment devices. The TrimDAC capability allows replacement of the mechanical trimmer function in new designs. The AD⑧⑧④② is ideal for ac or dc gain control of up to ⑤⓪ kHz bandwidth signals. The four-quadrant multiplying capability is useful for signal inversion and modulation often found in video vertical deflection circuitry.

The ADCMP⑥⓪⓪, ADCMP⑥⓪①, and ADCMP⑥⓪② are very fast comparators fabricated on Analog Devices proprietary XFCB② process. These comparators are exceptionally versatile and easy to use. Features include an input range from VEE ⓪.⑤ V to VCC + ⓪.② V, low noise TTL-/CMOS-compatible output drivers, and latch inputs with adjustable hysteresis and/or shutdown inputs.