Unmanned aerial vehicles carry an important mission in the military field. From the past, they only took charge of intelligence, surveillance and investigation (ISR) missions. Now they assume the dual responsibility of ISR and strike, and play an increasingly important role in the military field... ...
With the rapid growth of UAVs in government defense programs and civilian applications, and their market demand is growing, the application areas of UAVs that are achievable are increasing, and they are frequently seen in people's sights.
At this time, ADI, with its expertise in the semiconductor industry, can't stand this broad prospect and step into the aviation field of unmanned aerial vehicles...
Unmanned aerial vehicle block diagram:
First, secure communication (data link) RF (Datalink)
1ADF7242: Low Power IEEE 802.15.4/Proprietary GFSK/FSK Zero IF 2.4 GHZ Transceiver IC
A highly integrated, low-power, high-performance transceiver that operates in the worldwide 2.4 GHz ISM band. Its design focuses on flexibility, robustness, ease of use and low power consumption. The IC supports IEEE 802.15.4-2006 2.4 GHz PHY requirements and proprietary GFSK/FSK/GMSK/MSK modulation schemes in both packet and data stream modes. And only a few external components are needed...
Advantages and features:
1. Low power consumption: Receive mode: 19 mA (typ.), Transmit mode: 21.5 mA (typ., PO = 3 dBm) 2 kHz crystal wake-up mode: 1.7 μA
2. Programmable output power: -20 dBm to +4.8 dBm in 2 dB steps
3. Frequency range (global ISM band): 2400 MHz to 2483.5 MHz
2ADF4150: Fractional N/Integer-N PLL Frequency Synthesizer
The device combines an external voltage controlled oscillator, loop filter, and an external reference frequency to implement a fractional-N or integer-N phase-locked loop (PLL) frequency synthesizer. It can also be used with external VCO devices. The VCO frequency can be divided by 1/2/4/8 or 16 so users can generate RF output frequencies as low as 31.25 MHz. For applications that require isolation, the RF output stage can be muted. The mute function can be controlled either by pin or by software... at the same time: wireless infrastructure, wireless LAN...
Advantages and features:
1. Independent charge pump power supply (VP) provides extended tuning voltage in 3 V systems
2. All on-chip registers are controlled via a simple three-wire interface
3. Powered from 3.0 V to 3.6 V, can be turned off when not in use
3ADL5801: High IP3, 10 MHz to 6 GHz Active Mixer
A high linearity, double-balanced active mixer core and integrated local oscillator buffer amplifier provide high dynamic range frequency conversion from 10 MHz to 6 GHz. The proprietary linearization architecture allows the mixer to provide enhanced IP3 performance at high input levels. The offset adjustment feature provides input linearity, single sideband noise figure, and DC current optimization from a single control pin. In mobile applications, in-band blocking signals can cause dynamic performance degradation, and the device's high input linearity allows it to meet the demanding requirements of this application...
Advantages and features:
1. Adaptive biasing enables the device to achieve high IP3 performance in the presence of strong blocking signals
2. When strong interference no longer occurs, it will be automatically biased to achieve low noise figure and low power consumption.
3. Excellent blocking single sideband noise figure, sideband noise figure: 10 dB
4ADRF6510: 30 MHz Dual Channel Programmable Filter and Variable Gain Amplifier
Integrates a matched pair of fully differential low noise, low distortion programmable filters and variable gain amplifiers. Each channel is capable of rejecting large out-of-band interference signals while faithfully amplifying the desired signal, thereby reducing the bandwidth and resolution requirements of the analog-to-digital converter. The two channels are excellently matched and have a high spurious-free dynamic range at all gain and bandwidth settings, making them ideal for quadrature (IQ) communication systems with dense constellations, multiple carriers and adjacent interference...
Advantages and features:
1. A matched pair of programmable filters and VGA
2. Continuous gain control range: -5 dB to 45 dB
3. Differential input and output, adjustable output common mode voltage, optional DC output offset correction function
Second, the framework control (Gimbal Control)
1ADXRS450: ±300°/S high vibration resistance digital gyroscope
An angular rate sensor (gyroscope) for industrial, medical, instrumentation, stabilization, and other high performance applications. It features an advanced differential four-sensor design that rejects the effects of linear acceleration and can operate in extremely harsh environments with shock and vibration. At the same time, an internal continuous self-test architecture is adopted. The integrity of the electromechanical system is checked by applying a high frequency electrostatic force to the sensing structure to generate a rate signal, distinguishing the rate signal from the baseband rate data, and performing internal analysis...and for medical applications, Industrial instrumentation...
Advantages and features:
1. Ability to detect angular rates up to ±300°/s. Angular rate data is provided as a 16-bit word as part of a 32-bit SPI message
2. High vibration suppression characteristics over a wide frequency range
3. Excellent zero offset stability: 25°/hour, internal temperature compensation, impact resistance: 2000 g
2ADXRS624: ±50°/S yaw rate gyroscope
A full-featured, low-cost angular rate sensor (gyroscope) fabricated on a surface micromachining process that integrates all necessary electronics on a single chip. The device fabrication technology is identical to the large-scale BiMOS process used in high-reliability automotive airbag accelerometers. It is also an automotive application grade gyroscope. Affected by automotive testing, these gyroscopes have a wider range of guaranteed minimum/maximum specifications... and are perfectly suited for: navigation systems, robot platforms...
Advantages and features:
1. Two digital self-test inputs excite the sensor by electromechanical method to test whether the sensor and signal conditioning circuit are working properly.
2. Implement a complete angular velocity gyroscope on a single chip
3. 105 °C working temperature, self-test according to digital commands, ultra-small size, light weight ("0.15 cc, "0.5 g)
3ADXRS623: ±150°/S yaw rate gyroscope
Third, visual enhancement
High quality vision systems are critical to the defense and aerospace markets. Soldiers in applications such as aircraft with surveillance cameras and night vision goggles require cutting-edge image acquisition, video processing and high-speed data connection technology. At the same time, the surveillance camera is now like a human eyeglass. It is a visual system that monitors and observes...
AD8031: 2.7 V, 800 ÎœA, 80 MHZ Rail-to-Rail Input/Output Single Amplifier
A single-supply voltage feedback amplifier with high speed, small signal bandwidth of 80 MHz and slew rate of 30 V/? s, the setup time is 125 ns. The above features consume less than 4.0 mW with a single +5 V supply. This low-power feature extends the operating time of high-speed, battery-powered systems without sacrificing dynamic performance... ideal for patient monitoring, no Human aircraft and scanning equipment...
Fourth, aviation electronics
ADCMP601: Rail-to-Rail, 2.5 V to 5.5 V, Single Supply TTL/CMOS Very Fast Comparator
Extremely fast comparators are manufactured using Analog Devices' proprietary XFCB2 process. These comparators are extremely versatile and easy to use, including: input range from VEE - 0.5 V to VCC + 0.2 V, low noise TTL-/CMOS-compatible output drivers, and locks with adjustable hysteresis Save input and / or turn off input ... for servo and robot technology, avionics...
Advantages and features:
1. Single pin control for programmable hysteresis and latching
2. Support wide input signal range, while still achieving independent output swing control and power saving function
3. Low-surge CMOS-/TTL-compatible output stage, propagation delay: 3.5 ns
Five, radar
Today's advanced radar systems require the highest performance signal processing products to achieve peak performance at runtime. Today's radars not only become military-essential electronic equipment, but are also widely used in social and economic development (such as weather forecasting, resource detection, environmental monitoring, etc.) and scientific research (celestial research, atmospheric physics, ionospheric structure research, etc...) Become an inseparable equipment for human life...
AD8014: 400 MHZ, Low Power, High Performance Amplifier
A revolutionary current feedback operational amplifier with new levels of bandwidth, power, output drive and distortion. The amplifier uses ADI's proprietary circuit architecture to achieve maximum performance with the lowest power consumption. It not only has excellent technical performance, but also low cost, suitable for consumer electronic devices. This universal amplifier is suitable for a variety of applications, including battery-powered equipment, radar and defense electronics...
Advantages and features:
1. Very stable, easy to use, fast recovery
2. Very low voltage and current noise and low distortion, ideal for wideband signal processing applications
3. Very low offset voltage and input bias with low drift and excellent drive capability
Because drones have the advantages of eliminating personnel, saving space, and more listening to electronic reconnaissance equipment and bomb load, the current research on drones has become a key project in various countries, including China’s desire to The forefront of the world of drones...
The performance improvement of drones is inseparable from the support of component technology, and ADI has a unique advantage in data processing technology. The technical support and breakthroughs brought to you are definitely not limited to what you see, but also one. The great experience of visual and tactile experience and shocking enjoyment...
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