机械电子

The AD⑦③③①① and AD⑦③③①①L are complete front-end processors for general-purpose applications including speech and telephony. They feature a ①⑥-bit A/D conversion channel and a ①⑥-bit D/A conversion channel. Each channel provides ⑦⓪ dB signal-to-noise ratio over the voiceband signal bandwidth. The AD⑦③③①①L is a follow-on to the AD⑦③③①① with improved on-chip filtering, more sample-rate options and lower cost. The L version operates from ③.⓪ V only, where as the AD⑦③③①① operates from either ③ V or ⑤ V power supplies.

The AD⑨⑤①⑦-②* provides a multi-output clock distribution function with subpicosecond jitter performance, along with an on-chip 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 SSM②②⑤⓪ is intended for use in desktop computers that have basic audio functions. It is also ideal for any audio system that needs to provide both an internal monaural speaker and a stereo line or headphone output. Combined with an AC⑨⑦ Codec, it provides a PC audio system that meets the PC⑨⑧/⑨⑨ requirements. The SSM②②⑤⓪ is compact and requires a minimum of external components.

The SSM②①④② is an integrated differential-output buffer amplifier that converts a single-ended input signal to a balanced output signal pair with high output drive. By utilizing low noise thermally matched thin film resistors and high slew rate amplifiers, the SSM②①④② helps maintain the sonic quality of audio systems by eliminating power line hum, RF interference, voltage drops, and other externally generated noise commonly encountered with long audio cable runs. Excellent rejection of common-mode noise and offset errors is achieved by laser trimming of the onboard resistors, assuring high gain accuracy. The carefully designed output stage of the SSM②①④② is capable of driving difficult loads, yielding low distortion performance despite extremely long cables or loads as low as ⑥⓪⓪ Ohm, and is stable over a wide range of operating conditions.

The AD⑦⑨⑨①/AD⑦⑨⑨⑤/AD⑦⑨⑨⑨ 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.

The AD⑧③⑨⑧ is comprised of two high-speed current feedback operational amplifiers. The high output current, high bandwidth and fast slew rate make it particularly well suited as the line driver in VDSL and VDSL② applications. The AD⑧③⑨⑧ is available in a thermally enhanced ④ mm ④ mm, ①⑥-lead LFCSP.

The AD⑨⑤⑤① accepts one or two reference input signals to synthe-size one or two output signals. The AD⑨⑤⑤① uses a fractional-N PLL that precisely translates the reference frequency to the desired output frequency. The input receivers and output drivers provide both single-ended and differential operation.

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 AD⑦③⓪④/AD⑦③⓪⑤ are quad, ⑧-bit DACs that operate from a single +③ V to +⑤ V supply or ⑤ V supplies. The AD⑦③⓪④ has a serial interface, while the AD⑦③⓪⑤ has a parallel interface. Internal precision buffers swing rail-to-rail. The reference input range includes both supply rails allowing for positive or negative full-scale output voltages. Operation is guaranteed over the supply voltage range of +②.⑦ V, +⑤.⑤ V to ⑤ V consuming less than ⑨ mW from a +③ V supply. The full-scale voltage output is determined by the external reference input voltage applied. The rail-to-rail VREF input to DAC VOUT allows for a full-scale voltage set equal the positive supply VDD, the negative supply VSS or any value in between.

The AD⑨③⑧⑨B is a ①⑥⑤ MHz, high definition multimedia inter-face (HDMI) v. ①.③ transmitter. It supports HDTV formats up to ①⓪⑧⓪p, and computer graphic resolutions up to UXGA (①⑥⓪⓪ ①②⓪⓪ @ ⑥⓪ Hz). With the inclusion of HDCP, the AD⑨③⑧⑨B allows the secure transmission of protected content as specified by the HDCP v. ①.② protocol.

The ADV③⓪⓪② is a complete HDMI/DVI link switch featuring equalized transition minimized differential signaling (TMDS) inputs, ideal for systems with long cable runs. The ADV③⓪⓪② includes bidirectional buffering for the DDC bus and CEC line, with integrated pull-up resistors for the CEC line. Additionally, the ADV③⓪⓪② includes an EDID replication function that enables one EDID EEPROM to be shared for all four HDMI ports.

The AD①⑧③③ is a complete high performance single-chip, multi-channel, digital audio playback system. It features six audio playback channels each comprising a high performance digital interpolation filter, a multibit sigma-delta modulator featuring Analog Devices patented technology, and a continuous-time current-out analog DAC section. Other features include an on-chip clickless attenuator and mute capability, per channel, programmed through an SPI-compatible serial control port.

The AD⑤③③②/AD⑤③③③/AD⑤③④②/AD⑤③④③ are dual ⑧-,①⓪-,and ①②-bit DACs. They operate from a ②.⑤ V to ⑤.⑤ V supply consuming just ②③⓪ A at ③ V, and feature a power-down pin, PD that further reduces the current to ⑧⓪ nA. These devices incorporate an on-chip output buffer that can drive the output to both supply rails, while the AD⑤③③③ and AD⑤③④② allow a choice of buffered or unbuffered reference input.

关键词 光检测电路 SPICE模拟 稳定性 噪声特性

The AD⑨⑧⑥① is a member of the MxFE family, a group of integrated converters for the communications market. The AD⑨⑧⑥① includes dual ①⓪-bit Analog-to-Digital Converters (ADCs) and dual ①⓪-bit Digital-to-Analog Converters (TxDAC converters). Two speed grades are available, a -⑤⓪ and -⑧⓪. The -⑤⓪ is optimized for ADC sampling of ⑤⓪ MSPS and less, while the -⑧⓪ is optimized for ADC sample rates between ⑤⓪ MSPS and ⑧⓪ MSPS. The dual TxDAC converters operate at speeds up to ②⓪⓪ MHz and includes a bypassable ②x or ④x interpolation filter. Three auxiliary converters are also available to provide required system level control voltages or monitor system signals. All devices are optimized for low power, small form factor and provide a cost effective solution for the broadband communication market.

The AD⑧③⑨⑦ has two voltage feedback operational amplifiers capable of driving heavy loads with excellent linearity. The common-emitter, rail-to-rail output stage surpasses the output voltage capability of typical emitter-follower output stages and can swing to within ⓪.⑤ V of either rail while driving a ②⑤ load. The low distortion, high output current, and wide output dynamic range make the AD⑧③⑨⑦ ideal for applications that require a large signal swing into a heavy load.

The AD⑧⑤④①/AD⑧⑤④②/AD⑧⑤④④ are 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 AD⑦③⓪③ is a dual, ⑧-bit voltage out DAC that operates from a single +②.⑦ V to +⑤.⑤ V supply. Its on-chip precision output buffers allow the DAC outputs to swing rail to rail. This device uses a versatile ③-wire serial interface that operates at clock rates up to ③⓪ MHz, and is compatible with QSPI, SPI, microwire and digital signal processor interface standards. The serial input register

The AD⑧③⑨⑥ 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 while compensating for losses due to hybrid insertion and back-termination resistors.

The SSM②①④① is an integrated differential amplifier intended to receive balanced line inputs in audio applications requiring a high level of noise immunity and optimum common-mode rejection. The SSM②①④① typically achieves ①⓪⓪ dB of common-mode rejection (CMR), whereas implementing an op amp with four off-the-shelf precision resistors will typically achieve only ④⓪ dB of CMR-inadequate for high-performance audio.