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Texas Instruments ADS8370EVM, Руководство пользователя, Страница: 10 / 16

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Texas Instruments ADS8370EVM Скачать руководство пользователя страница 10

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Board Layers

Figure 3. Power Plane

ADS8380EVM

10

SLAU146 – December 2004

Содержание ADS8370EVM

Страница 1: ...umbers ADS8380 SLAS387 REF1004C 2 5 SBVS002 SN74AHC1G125 SCLS377 THS4031 SLOS224 OPA132 SBOS054 Contents 1 EVM Overview 2 2 Analog Interface 2 3 Digital Interface 4 4 Power Supplies 5 5 Using the EVM...

Страница 2: ...settling low noise amplifier The amplifier circuit shown in Figure 1 is the buffer circuit used on the ADS8380EVM This circuit consists of the THS4031 a high speed low noise low distortion amplifier...

Страница 3: ...mplifier U3 is set for a gain of 1 6 enabling it to take a 2 5 V input and output 4 1 V for use with the converter or as part of the dc offset voltage circuit for the input buffer U4 The user supplied...

Страница 4: ...tive supply to VCC Open Shorted 1 SJP6 Connect DC offset voltage to U4 Shorted 1 N A SJP7 Connect IN pin to analog ground Shorted 1 N A W1 Connect 5VD to BVDD Shorted 1 Open Connect 3 3VD to BVDD Open...

Страница 5: ...alog section of the board A D Reference A single 5 Vdc or 3 3 Vdc supply for the digital section of the board A D buffers There are two ways to provide these voltages The first way is to connect the v...

Страница 6: ...ylene or C0G type capacitors are recommended for use in the signal path As a prototype board the buffer circuit has resistor pads for configuring the input as either single ended or fully differential...

Страница 7: ...00 1 16 W 1 0603 SMD R24 R25 Alternate R26 R27 R28 R29 13 1 1 k R31 603 Panasonic ECG or ERJ 3EKF1001V RES 1 k 1 16 W 1 0603 SMD Alternate 14 1 49 9 k R33 805 Panasonic ECG or ERJ 6ENF4992V RES 49 9 k...

Страница 8: ...D Texas Instruments REF1004C 2 5 2 5 V Micropower Voltage Reference 36 1 SMA_PCB_ J1 SMA_JACK Johnson Components Inc 142 0701 301 Right Angle SMA Connector MT 37 1 Power Supply J2 5X2X 1_ Samtec SSW 1...

Страница 9: ...www ti com 8 Board Layers Board Layers Figure 2 Top Layer ADS8380EVM SLAU146 December 2004 9...

Страница 10: ...www ti com Board Layers Figure 3 Power Plane ADS8380EVM 10 SLAU146 December 2004...

Страница 11: ...www ti com Board Layers Figure 4 Ground Plane ADS8380EVM SLAU146 December 2004 11...

Страница 12: ...www ti com Board Layers Figure 5 Bottom Layer ADS8380EVM 12 SLAU146 December 2004...

Страница 13: ...www ti com 9 Schematics Schematics Schematic diagrams are appended following this page ADS8380EVM SLAU146 December 2004 13...

Страница 14: ...2005 ADS8370EVM ADS8380EVM 6458769 Serial Control 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 P2 Analog Input 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 P1 VA VA CS FS PD SCLK AVCC VA...

Страница 15: ...0 1uF TP11 TP8 VBD C42 0 01uF C12 0 1uF TP9 C35 10uF C34 10uF C46 1nF C47 1nF AVCC BVDD L3 MMZ2012R601A L4 MMZ2012R601A C41 10uF C40 10uF C6 NI C7 NI C44 NI C45 NI TP7 TP13 TP14 VCC VCC C36 10uF C37...

Страница 16: ...ute a license from TI to use such products or services or a warranty or endorsement thereof Use of such information may require a license from a third party under the patents or other intellectual pro...

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