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FS9701B Dataheets PDF



Part Number FS9701B
Manufacturers Fortune Semiconductor
Logo Fortune Semiconductor
Description (FS970x) DMM Analog Front End
Datasheet FS9701B DatasheetFS9701B Datasheet (PDF)

REV. 4.2 FS970X-DS-42_EN FEB 2007 www.DataSheet4U.com Datasheet FS970X 5,000/50,000 counts DMM analog front end. FS970X Fortune Semiconductor Corporation 28F., No.27, Sec. 2, Zhongzheng E. Rd., Danshui Town, Taipei County 251, Taiwan Tel.:886-2-28094742 Fax:886-2-28094874 www.ic-fortune.com www.DataSheet4U.com This manual contains new product information. Fortune Semiconductor Corporation reserves the rights to modify the product specification without further notice. No liability is as.

  FS9701B   FS9701B


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REV. 4.2 FS970X-DS-42_EN FEB 2007 www.DataSheet4U.com Datasheet FS970X 5,000/50,000 counts DMM analog front end. FS970X Fortune Semiconductor Corporation 28F., No.27, Sec. 2, Zhongzheng E. Rd., Danshui Town, Taipei County 251, Taiwan Tel.:886-2-28094742 Fax:886-2-28094874 www.ic-fortune.com www.DataSheet4U.com This manual contains new product information. Fortune Semiconductor Corporation reserves the rights to modify the product specification without further notice. No liability is assumed by Fortune Semiconductor Corporation as a result of the use of this product. No rights under any patent accompany the sale of the product. Rev. 4.2 2/47 FS970X Contents 1. 2. GENERAL DESCRIPTION................................................................................................................... 5 FEATURES.......................................................................................................................................... 5 2.1 General Features (FS9701A/B as an example) ....................................................................... 5 Measurement Range (FS9701B as an example) ..................................................................... 6 www.DataSheet4U.com 2.2 3. 4. 5. 6. ORDERING INFORMATION................................................................................................................. 6 ELECTRICAL CHARACTERISTICS..................................................................................................... 6 BLOCK-DIAGRAM .............................................................................................................................. 8 PACKAGING & PINS........................................................................................................................... 8 6.1 6.2 LQFP 64 Pin Definition............................................................................................................ 8 Pin Description ....................................................................................................................... 9 7. 8. TYPICAL APPLICATION CIRCUIT......................................................................................................10 REGULATOR......................................................................................................................................11 8.1 8.2 8.3 Low Voltage Detector.............................................................................................................12 Saving Mode ..........................................................................................................................12 On/Off Power Output..............................................................................................................13 9. CLOCK AND BUZZER GENERATOR .................................................................................................14 9.1 9.2 Clock Generator.....................................................................................................................14 Buzzer Generator ...................................................................................................................15 10. FUNCTION NETWORK.......................................................................................................................16 10.1 10.2 10.3 10.4 10.5 Function Decoder ..................................................................................................................17 Fixed Voltage Generator ........................................................................................................18 Ω Power Supply .....................................................................................................................19 Multiplexers and pre-filter......................................................................................................20 Operation Amplifier and Comparator.....................................................................................22 11. ANALOG TO DIGITAL CONVERTER (ADC) .......................................................................................24 11.1 11.2 11.3 11.4 11.5 The operating theory of Σ-∆ ADC...........................................................................................24 Transfer Function & Non-ideal affect.....................................................................................24 Function Gain Setup ..............................................................................................................25 Digital Filter............................................................................................................................26 Reading and operation of ADC ..............................................................................................28 11.5.1 High-resolution, low-speed output ........................................................................................28 11.5.2 Low-resolution, high-speed output ................


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