Universal Frequency-to-Digital Converters UFDC-1 and UFDC-1M-16

		IC	Prices, EUR
		Qty	1 pce	50 pcs	1000 pcs
		UFDC-1	14.95	12.95	11.95
		UFDC-1M-16	17.95	15.95	12.95	Shipping price up to 0.200 KOS: EUR 5.00

Note: These devices can also be supplied in wafer form. Please contact SWP sales office for detailed ordering information and minimum quantities.

Product Description

The Universal Frequency-to-Digital Converter (UFDC-1) is a universal 2-channel high precision multifunctional converter based on novel frequency-time conversion methods. It is perfectly suited to any applications where frequency-time parameters but also sensors output signal, have to be measured with highest resolution and programmable accuracy during the non-redundant conversion time and self-adaptive possibilities. The UFDC-1 covers all specified converted range of frequencies and accuracy for modern frequency-time domain sensors.

The UFDC-1 is a complex fully digital CMOS integrated circuit (IC). By using this IC it is possible to build a wide variety of digital, smart sensors and intelligent sensor systems. The device achieves a high-resolution conversion for data acquisition systems designed to support all range of frequency-time domain and digital sensor applications. It offers high performance with flexibility and requires a minimum of external components. It  can be easy included into digital environment, controlled by an external microcontroller or work independently as a separate measuring unit without an external control. The function selection can be configured in both software and hardware. The IC converts frequency-time domain signals into digital domain and provides interface to microcontroller, DAQ or sensor system to read these digital results.

The UFDC-1 can measure the following frequency-time parameters of signals:

The UFDC-1 and UFDC-1M-16 can also work with voltage and current output sensors. It this case, any voltage–to-frequency converter (VFC) can be used. The accuracy of such system will be determined by sensor accuracy as well as by VFC accuracy.

Features:

• 16 measuring modes

• Provides interfacing for many types of frequency-time domain sensors and transducers

• Frequency range from 0.05 Hz up to 7.5 MHz (at 40-50 % duty-cycle for f_xmax) without prescaling and 120 MHz with prescaling

• Programmable accuracy (relative error) for frequency (period) conversion from 1 % up to 0.001 % for rectangular waveform input pulse signals

• Relative quantization error is constant in all specified frequency range

• Non-redundant conversion time

• Internal reference clock 500 kHz, 16 MHz @ 16MHz quartz oscillator

• Quartz-accurate automated calibration

• Simple 3-wire serial interface (SPI compatible)

• 2-wire interface (I²C compatible)

• Two direction RS-232/485 serial interface

• Master and slave communication modes for RS-232/485

• Frequency generator mode f_osc/2 = 16 MHz / 2 = 8 MHz with quartz crystal stability

• Single power supply 4.5 – 5.5 V

• Current consumption at 16 MHz, 5V, 25 ⁰C below 20 mA

• Operating temperature range (- 40 ⁰C to + 85 ⁰C)

• Package Type: 28-lead Plastic Dual Inline Package (PDIP) and compact 32-lead TQFP

Main Differences Between the UFDC-1 and UFDC-1M-16

* The conversion time is non-redundant and depends on the programmable relative error.

Custom Design

The custom design is available. The possibility additional functions include but not restricted by:

• Additional measuring modes (for example, frequency (period) deviation; measuring mode with non-redundant reference frequency for low power applications, etc.)

• Additional mathematical operations for on-chip data and signal processing

• Various interfaces

• Increased accuracy, reduced conversion time and expanded frequency range

• Integrating sensor interface ICs and precision data converters into your system

• IEEE 1451 standard support

Most of necessary functions can be implemented on a single circuit and so to provide a system-on-chip solution. Both devices can also be supplied in wafer form. On the base of the UFDC-1 and UFDC-1M-16 we also can develop complete solutions and additional modules to fit your applications. For more information please contact: info@sensorsportal.com

Typical Applications:

Documentations and Software:

1. Universal Frequency-to-Code Converter (UFDC-1). Specification and Application Notes,

2. Terminal V1.9B for Windows (Software)

Application Specific Papers:

1. Intelligent Opto Sensors’ Interfacing Based on Universal Frequency-to-Digital Converter

2. Data Acquisition Systems for Quasi-Digital Temperature Sensors Based on Universal Frequency-to-Digital Converter

3. Practical Circuits and Interface Techniques for MEMS Accelerometers with Quasi-Digital Output

4. High Precision, Wide Speed Range Rotation Sensing with UFDC-1

5. Digital Humidity Sensors and Data Logger Design Based on Modern Frequency-to-Digital Converter

6. Intelligent Digital Pressure Sensors and Transducers Based on Universal Frequency-to-Digital Converter (UFDC-1)

7. Digital Magnetic Sensors Based on Universal Frequency-to-Digital Converter (UFDC-1)

8. IEEE 1451 Standard and Frequency Output Sensors: How to Obtain a Broad-Based Industry Adoption ?

9. Automated Calibration Technique for Programmable Universal Frequency-to-Digital Converter, in Proceedings of IFAC Workshop on Programmable Devices

   and  Embedded Systems (PDeS’2006), Czeh Republic, Brno, 14-16 February 2006, pp.72-77.

10.High-Speed Universal Frequency-to-Digital Converter for Quasi-Digital Sensors and Transducers,

    Sensors & Transducers Journal, Vol. 80, Issue 6, June 2007, pp. 1225-1229.

11.Self-Adaptive Smart Sensors and Sensor Systems, Sensors & Transducers Journal, Vol. 94, Issue 7, July 2007, pp.1-14

Press Releases

1. Sensors Interfacing ICs are Available in Miniature TQFP Package,

   Sensors & Transducers Magazine (e-Digest), Vol. 87, Issue 1, January 2008.

2. Fast, Accurate Universal Frequency-to-Digital Converter for Quasi-Digital Sensors and Transducers,

   Sensors & Transducers Magazine (e-Digest), Vol. 80, Issue 6, June 2007.

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