10位高速低功耗A D轉(zhuǎn)換器的演示板TDA8764ATS的設

1. MAIN FEATURES OF THE TDA8764ATS/TDA8764AHL:....................................................................5
2. PRINCIPLE AND DESCRIPTION OF THE BOARD:..............................................................................6
3. OVERVIEW OF THE BOARD:.....................................................................................................................8
4. PCB DESIGN:.................................................................................................................................................10
4.1 MICROSTRIP LINES: .......................................................................................................................................11
4.2 POWER SUPPLY WIRE:...........................................................................................................................11
4.3 ANALOG AND DIGITAL RETURN GROUND POINT:.........................................................................11
5. SPECIAL FEATURES OF THE APPLICATION BOARD:...................................................................12
5.1 ADC ANALOG INPUT VI:..........................................................................................................................13
5.2 DATA OUTPUT D0 TO D9: .......................................................................................................................15
5.3 DATA RANGE OUTPUT IR:......................................................................................................................18
5.4 ADC ANALOG, DIGITAL AND OUTPUT STAGES POWER SUPPLIES:........................................................18
5.5 REFERENCE VOLTAGES VRB AND VRT: .......................................................................................................18
6. ENVIRONMENT CIRCUITS:......................................................................................................................19
6.1 GENERAL POWER SUPPLY:............................................................................................................................19
6.2 TOP REFERENCE VOLATGE REGULATOR:.......................................................................................................21
6.3 BOTTOM REFERENCE VOLTAGE:........................................................................................................22
6.4 CLOCK JITTER: .........................................................................................................................................23
6.5 CLOCK OSCILLATOR: ..............................................................................................................................25
6.6 CLOCK INTERNAL/EXTERNAL SELECTOR:.......................................................................................26
6.7 D FLIP-FLOP INTERFACE:......................................................................................................................27
7. OPERATING MODE: ...................................................................................................................................28
7.1 INTERNAL CLOCK OPERATION:...........................................................................................................28
7.2 EXTERNAL SINGLE CLOCK OPERATION: ..........................................................................................28
7.3 QUICKVIEW OF THE DEMOBOARD:....................................................................................................29
8. PERFORMANCES:.......................................................................................................................................30
8.1 DEFINITION OF THE MEASURING PARAMETERS:...........................................................................30
8.2 MEASUREMENT OF THE 60MSPS WITH BINARY OUTPUTS:.........................................................34
8.3 MEASUREMENT OF THE 60MSPS WITH BINARY OUTPUTS:.........................................................36
8.4 MEASUREMENT OF THE 60MSPS WITH CLOCK OSCILLATOR:....................................................37
9. DEMOBOARD FILES:.................................................................................................................................39
9.1 TDA8764ATS SSOP28 VERSION:................................................................................................................39