Dapu Microelectronics Products

Dapu offers a comprehensive portfolio of timing products including crystal oscillators (XO) for general-purpose timing, temperature-compensated oscillators (TCXO) for high-stability applications, voltage-controlled oscillators (VCXO) for PLL and frequency synthesis, oven-controlled oscillators (OCXO) for ultra-high stability, and clock generators for system timing. Products cover frequency ranges from kHz to GHz with various package options including standard DIP, SMD, and small-form-factor ceramic packages. Dapu also offers custom frequency programming services for specific application requirements.

Review the product categories based on your stability, jitter, and frequency requirements. Contact our FAE team for detailed selection guidance.

Selecting the right oscillator depends on several key parameters. First, determine your frequency stability requirement - standard XOs offer ±20-50ppm, TCXOs provide ±0.5-2.5ppm, and OCXOs achieve ±0.01-0.1ppm. Second, evaluate jitter requirements - applications like Ethernet and SERDES need sub-1ps jitter, while general microprocessor clocks can tolerate higher jitter. Third, consider operating temperature range - commercial (0-70°C), industrial (-40-85°C), or automotive (-40-125°C). Fourth, assess power consumption constraints - TCXOs consume more power than standard XOs. Fifth, determine package size requirements - smaller packages cost more but save board space. Our FAE team can help analyze your specific requirements.

Define your key parameters (stability, jitter, temperature, power) and contact our FAE team for personalized recommendations.

Dapu offers a range of RF components for wireless communication applications. RF filters include SAW filters, BAW filters, and ceramic filters for various frequency bands including cellular (700MHz-2.7GHz), WiFi (2.4GHz/5GHz), Bluetooth, and ISM bands. Low noise amplifiers (LNAs) provide high gain with low noise figure for receiver front-ends. RF switches offer high isolation for antenna switching and filter banks. Power amplifiers are available for low-power transmitter applications. These components support 5G, 4G LTE, WiFi 6, Bluetooth 5, and other wireless standards. Dapu can also provide custom RF solutions for specific frequency bands and performance requirements.

Identify your frequency band and performance requirements. Contact us for RF component recommendations and custom solutions.

Crystal Oscillators (XO) are the basic type using a quartz crystal to generate a stable frequency. They offer good stability (±20-50ppm) at low cost and are suitable for general-purpose clocking. Temperature-Compensated Crystal Oscillators (TCXO) add temperature compensation circuitry to achieve much better stability (±0.5-2.5ppm) across temperature variations. They're ideal for GPS, cellular, and wireless applications. Voltage-Controlled Crystal Oscillators (VCXO) allow frequency adjustment through a control voltage, making them suitable for PLL applications and frequency synchronization. They typically offer stability between XO and TCXO. The choice depends on your stability requirements, temperature range, and whether you need frequency adjustment capability.

Use XO for general timing, TCXO for high-stability applications, VCXO for PLL and synchronization. Contact us for specific recommendations.

Dapu timing products are competitively priced compared to international brands. Standard crystal oscillators range from $0.10-$0.50 depending on frequency and package. TCXOs typically cost $0.50-$3.00 based on stability grade and temperature range. VCXOs range from $0.80-$4.00 depending on pull range and linearity. OCXOs for high-stability applications range from $20-$100+. RF filters range from $0.05-$0.30 for standard bands. LNAs range from $0.20-$1.00 depending on frequency and performance. Custom frequency parts may have setup charges. Volume discounts are available for high-quantity orders. As an authorized distributor, we offer competitive pricing and can provide quotations based on your specific requirements.

Contact our sales team for current pricing and volume discounts. We can provide competitive quotations for your production requirements.