机械电子

The AD①⑨③③ is a high performance, single chip that provides eight digital-to-analog converters (DACs) with differential output using the Analog Devices, Inc. patented multibit sigma-delta (-) architecture. An SPI port is included, allowing a microcontroller to adjust volume and many other parameters. The AD①⑨③③ operates from ③.③ V digital and analog supplies. The AD①⑨③③ is available in a ⑥④-lead (differential output) LQFP. Other members of this family include a single-ended DAC output and I②C control port version.

The ADF④①①⓪ family of frequency synthesizers can be used to implement local oscillators in the up-conversion and down-conversion sections of wireless receivers and transmitters. They consist of 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).

The ADV③⓪⓪③ is a ④-channel transition minimized differential signaling (TMDS) buffer featuring equalized inputs and pre-emphasized outputs. The ADV③⓪⓪③ features ⑤⓪ input and output terminations, providing full-swing output signal recovery and minimizing reflections for improved system signal integrity. The ADV③⓪⓪③ is targeted at HDMI/DVI applications and is ideal for use in systems with long cable runs, long PCB traces, and designs with interior cabling.

The ADN②⑧①⑨ provides receiver functions of Quantization, Signal Level Detect and Clock and Data Recovery at rates of OC-③, OC-①②, Gigabit Ethernet, OC-④⑧ and all FEC rates. 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 ADN②⑧①② provides the receiver functions of quantization, signal level detect, and clock and data recovery for continuous data rates from ①②.③ Mb/s to ②.⑦ Gb/s. The ADN②⑧①② 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 ADCMP⑤⑥⑦ is an ultrafast voltage comparator fabricated on Analog Devices proprietary XFCB process. The device features ②⑤⓪ ps propagation delay with less than ③⑤ 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 AD⑧③②① is a low cost digitally controlled variable gain amplifier optimized for coaxial line driving applications such as cable modems that are designed to the DOCSIS* (upstream) standard. An ⑧-bit serial word determines the desired output gain over a ⑤③.④ dB range, resulting in gain changes of ⓪.⑦⑤ dB/LSB.

The AD⑤③⓪⑥/AD⑤③①⑥/AD⑤③②⑥ are quad ⑧-, ①⓪-, and ①②-bit buffered voltage output DACs, in a ①⑥-lead TSSOP package, that operate from a single 2.5 V to ⑤.⑤ V supply, consuming ⑤⓪⓪ A at ③ V. Their on-chip output amplifiers allow rail-to-rail output swing with a slew rate of ⓪.⑦ V/s. A ②-wire serial interface that operates at clock rates up to ④⓪⓪ kHz is used. This interface is SMBus-compatible at VDD ③.⑥ V. Multiple devices can be placed on the same bus.

The AD⑧③②② is a low cost digitally controlled variable gain amplifier optimized for coaxial line driving applications such as cable modems that are designed to the MCNS-DOCSIS upstream standard. A ⑧-bit serial word determines the desired output gain over a ④② dB range resulting in gain changes of ⑥ dB/LSB.

The AD⑦④⑥⑥/AD⑦④⑥⑦/AD⑦④⑥⑧* are ①②-/①⓪-/⑧-bit, high speed, low power, successive approximation analog-to-digital converters (ADCs), respectively. The parts operate from a single 1.6 V to ③.⑥ V power supply and feature throughput rates up to ②⓪⓪ kSPS with low power dissipation. The parts contain a low noise, wide bandwidth track-and-hold amplifier, which can handle input frequencies in excess of ③ MHz.

The AD⑧③②④① is a low cost amplifier designed for coaxial line driving. The features and specifications make the AD⑧③②④ ideally suited for DOCSIS ②.⓪ and EuroDOCSIS applications. The gain of the AD⑧③②④ is digitally controlled. An ⑧-bit serial word determines the desired output gain over a ⑤⑨ dB range, resulting in gain changes of ① dB/LSB.

The ADL⑤⑤③⓪ is a broadband, fixed-gain, linear amplifier that operates at frequencies up to ①⓪⓪⓪ MHz. The device can be used in a wide variety of wired and wireless devices, including cellular, broadband, CATV, and LMDS/MMDS applications.

The ADN②⑧①③ provides the receiver functions of quantization, signal level detect, and clock and data recovery for continuous data rates from ①②.③ Mb/s to ①.②⑤ Gb/s. The ADN②⑧①③ 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 AD⑨⑧⑦⑧ is a single-supply cable modem/set-top box mixed-signal front end. The device contains a transmit path interpolation filter, a complete quadrature digital upconverter, and transmit DAC. The receive path contains dual, ①②-bit ADCs and a ①⓪-bit ADC. All internally required clocks and an output system clock are generated by the PLL from a single crystal oscillator or clock input.

The AD⑤③⓪⑤/AD⑤③①⑤/AD⑤③②⑤ are quad ⑧-,①⓪-and ①②-bit buffered voltage output DACs in a ①⓪-lead microSOIC package that operate from a single 2.5 V to ⑤.⑤ V supply consuming ⑤⓪⓪ A at ③ V. Their on-chip output amplifiers allow rail-to-rail output swing with a slew rate of ⓪.⑦ V/s. A ②-wire serial interface is used which operates at clock rates up to ④⓪⓪ kHz. This interface is SMBus-compatible at VDD ③.⑥ V. Multiple devices can be placed on the same bus.

The AD⑨⑧⑥⓪/AD⑨⑧⑥② are versatile integrated mixed signal front ends that are optimized for broadband wireless applications. The AD⑨⑧⑥⓪/AD⑨⑧⑥② are cost effective high performance mixed signal solutions for standards based or proprietary fixed access, modem, or wireless networking applications where dynamic performance, power dissipation, cost, and size are critical attributes.

The ADCMP⑥⓪⑨ is a fast comparator fabricated on XFCB②, an Analog Devices, Inc., proprietary process. These comparators are exceptionally versatile and easy to use. Features include an input range from VEE ⓪.② V to VCC + ⓪.② V, low noise, TTL-/CMOS-compatible output drivers, and adjustable hysteresis and/or shutdown inputs.

The AD⑦④⑥⑧* are ①②-/①⓪-/⑧-bit, high speed, low power, successive approximation analog-to-digital converters (ADCs), respectively. The parts operate from a single ①.⑥ V to ③.⑥ V power supply and feature throughput rates up to ②⓪⓪ kSPS with low power dissipation. The parts contain a low noise, wide bandwidth track-and-hold amplifier, which can handle input frequencies in excess of ③ MHz.

The AD⑨③⑧⓪ offers designers the flexibility of an analog interface and high definition multimedia interface (HDMI) receiver integrated on a single chip. Also included is support for high bandwidth digital content protection (HDCP).

The AD①⑧⑥⑥ is a complete dual ①⑥-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, thinfilm resistor elements. Careful design and layout techniques have resulted in low distortion, low noise, high channel separa tion and low power dissipation.