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Texas Instruments ADS5413EVM, Руководство пользователя

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Texas Instruments ADS5413EVM Скачать руководство пользователя страница 12

2-1

Circuit Description

 

Circuit Description

This chapter discusses the circuit description of the ADS5413 EVM.

Topic

Page

2.1

Schematic Diagram

2−2

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2.2

Circuit Function

2−2

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Chapter 2

Содержание ADS5413EVM

Страница 1: ...ADS5413EVM January 2004 Wireless Infrastructure Products User s Guide SLWU012 ...

Страница 2: ...tute 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 property of the third party or a license from TI under the patents or other intellectual property of TI Reproduction of information in TI data books or data sheets is permissible only if reproduction is...

Страница 3: ... handling or use of the goods Please be aware that the products received may not be regulatory compliant or agency certified FCC UL CE etc Due to the open construction of the product it is the user s responsibility to take any and all appropriate precautions with regard to electrostatic discharge EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR A...

Страница 4: ... If there is uncertainty as to the load specification please contact a TI field representative During normal operation some circuit components may have case temperatures greater than 60 C The EVM is designed to operate properly with certain components above 60 C as long as the input and output ranges are maintained These components include but are not limited to linear regulators switching transis...

Страница 5: ...tion 2 2 2 2 1 Analog Inputs 2 2 2 2 2 Clock Inputs 2 2 2 2 3 Control Inputs 2 3 2 2 4 Power 2 3 2 2 5 Outputs 2 3 3 Physical Description 3 1 3 1 PCB Layout 3 2 3 2 Parts List 3 8 3 3 Schematic 3 9 Figures 3 1 Top Layer 1 3 2 3 2 Layer 2 Ground Plane 3 3 3 3 Layer 3 Power Plane 3 4 3 4 Layer 4 Power Plane 3 5 3 5 Layer 5 Ground Plane 3 6 3 6 Layer 6 Bottom Layer 3 7 Tables 1 1 Two Pin Jumper List ...

Страница 6: ...Contents iv 3 1 Parts List 3 8 ...

Страница 7: ...Contents v ...

Страница 8: ...of the ADS5413 evaluation module EVM and provides a general description of the features and functions to be considered while using this module Topic Page 1 1 Purpose 1 2 1 2 EVM Basic Functions 1 2 1 3 Power Requirements 1 2 1 4 ADS5413 EVM Operational Procedure 1 2 Chapter 1 ...

Страница 9: ...for proper configuration and operation Digital outputs from the EVM are via a 40 pin connector The digital lines from the ADC are buffered before going to this connector More information on these connectors can be found in the ADC output section Power connections to the EVM are via banana jack sockets Separate sockets are provided for the ADC core output drivers and external reference differential...

Страница 10: ...2 2 Connect supplies to the EVM as follows a 3 3 V core and output driver supply to J6 and return to J5 3 Switch power supply on 4 Use a function generator with 50 Ω output to input an 65 MHz 0 V offset 2 Vp p amplitude differential sine wave signal into J3 and the complementary signal into J4 to provide a true differential ADC input clock The frequency of the clock must be within the specificatio...

Страница 11: ...1 4 ...

Страница 12: ...2 1 Circuit Description Circuit Description This chapter discusses the circuit description of the ADS5413 EVM Topic Page 2 1 Schematic Diagram 2 2 2 2 Circuit Function 2 2 Chapter 2 ...

Страница 13: ...te inputs for the ADC clock and output buffer clock This allows the user to send a modified version of the ADC clock inverted delayed etc with the output data to generate the required setup and hold times for the users interface 2 2 2 1 True Differential ADC Clock To provide a true differential clock input a positive 65 MHz 0 V offset 0 5 Vp p amplitude sine wave signal into J3 and the complimenta...

Страница 14: ...ween pins 2 and 3 the ADC is in the duty cycle adjust mode DCS The DCS is disabled with jumper W5 installed between pins 1 and 2 The device has a weak internal pullup resistor on this pin 2 2 4 Power Power is supplied to the EVM via banana jack sockets A separate connection is provided for a 3 3 V core supply J6 and J5 1 8 V 3 3 V digital driver supply J13 and J14 and 5 V differential amplifier an...

Страница 15: ...2 4 ...

Страница 16: ...al Description This chapter describes the physical characteristics and PCB layout of the EVM lists the components used on the module and shows the schematic Topic Page 3 1 PCB Layout 3 2 3 2 Parts List 3 8 3 3 Schematic 3 9 Chapter 3 ...

Страница 17: ...3 2 3 1 PCB Layout The EVM is constructed on a 6 layer 4 25 inch 5 3 inch 0 062 inch thick PCB using FR 4 material The individual layers are shown in Figure 3 1 through Figure 3 6 Figure 3 1 Top Layer 1 ...

Страница 18: ...3 3 Physical Description Figure 3 2 Layer 2 Ground Plane ...

Страница 19: ...3 4 Figure 3 3 Layer 3 Power Plane ...

Страница 20: ...3 5 Physical Description Figure 3 4 Layer 4 Power Plane ...

Страница 21: ...3 6 Figure 3 5 Layer 5 Ground Plane ...

Страница 22: ...3 7 Physical Description Figure 3 6 Layer 6 Bottom Layer ...

Страница 23: ...3 C34 C57 C59 C61 C63 2 pF 50 V 25 capacitor 2 ECU V1HO20CCV Panasonic C8 C10 22 pF 50 V 5 capacitor 2 ECU 1VC1H220J Panasonic C38 C39 2 2 µF 6 3 V 80 20 capacitor 1 ECJ 1VF0J225Z Panasonic C56 0 1 µF 10 V 10 capacitor 4 ECJ 0EB1A104K Panasonic C2 C97 C78 C79 RESISTORS 49 9 Ω resistor 1 16 W 1 1 ERJ 6ENF49R9V Panasonic R46 0 Ω resistor 1 16 W 1 1 ERJ 3EKF0R00V Panasonic R5 R4 R6 R36 R38 24 3 Ω res...

Страница 24: ... J2 J3 J4 SMA connectors 2 2262 0000 09 NEWARK J9 J12 Black test point 4 5000K ND Keystone TP1 TP3 TP4 TP5 RED test point 3 5001K ND Keystone TP2 TP8 TP9 2POS_header 2 TSW 150 07 L S Samtec W4 W9 3POS_header 4 TSW 150 07 L S Samtec W1 W2 W5 W7 40 pin IDC connector 1 TSW 120 07 L D Samtec J10 Red banana jacks 4 ST 351A Allied J6 J7 J11 J13 Black banana jacks 3 ST351B Allied J5 J8 J14 ADS5413 1 ADS5...

Страница 25: ...10 AGND 11 N C 12 VBG 13 N C 14 DECOUPLING 15 PWD 16 N C 17 AVDD 18 CLK 19 CLKC 20 AGND 21 OGND 22 OVDD 23 DCA 24 D11 25 D10 26 D9 27 D8 28 D7 29 D6 30 D5 31 D4 32 D3 33 D2 34 D1 35 D0 36 N C 37 OVDD 38 OGND 39 AVDD 40 AGND 41 AGND 42 AGND 43 AVDD 44 AVDD 45 AGND 46 AVDD 47 REF_SEL 48 U1 ADS5413 AVDD AVDD RP1 220 RP2 220 RP3 220 Sh 2 Sh 2 Sh 2 Sh 2 Sh 3 Sh 3 Sh 3 Sh 3 Sh 3 Sh 3 Sh 3 Sh 3 Sh 3 Sh 3...

Страница 26: ... 49 9 R26 2 0 K W4 W9 VREFT VREFT R21 10K R34 2 55K R33 2K VREFB C43 1uF C34 470pF 5VA EXTERNAL_CML VREFB EXTERNAL_CML 2 3 1 4 11 U3A OPA4227UA 5 6 7 U3B OPA4227UA 10 9 8 U3C OPA4227UA TP2 TP8 C46 10 uF C47 10 uF 1 2 3 R18 1K C48 10 uF R24 100 C51 0 047 uF R13 49 9 R27 2 0 K 0 1 0 1 C45 1uF R22 10K R35 4 99K 1 2 3 R19 1K C49 10 uF R25 100 C52 0 047 uF R14 49 9 R28 2 0 K 0 1 TP9 EN 3 BYPASS 4 OUT 5...

Страница 27: ... B10 B11 LSB ADS5413 A 3 4 J SETON Y DEWONCK 1 2 3 4 5 J9 OUT_CLK R46 49 9 R5 0 B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11 C20 10uF Sh 1 Sh 1 Sh 1 Sh 1 Sh 1 Sh 1 Sh 1 Sh 1 Sh 1 Sh 1 Sh 1 Sh 1 CLK_OUT CLK_OUT Sh 1 R6 0 Note 1 Note 1 Part not installed 1 OEB 1 1Y1 2 1Y2 3 GND 4 1Y3 5 1Y4 6 VCC 7 2Y1 8 2Y2 9 GND 10 2Y3 11 2Y4 12 3Y1 13 3Y2 14 GND 15 3Y3 16 3Y4 17 VCC 18 4Y1 19 4Y2 20 GND 21 4Y3 22 4Y4 23 ...

Страница 28: ...ply 3 3V 3 3VA PS ADS5413 A 4 4 J6 BANANA_JACK J5 BANANA_JACK FB1 FB3 C83 10 uF C75 47 uF C85 10 uF C77 47 uF C65 1uF TP3 TP4 TP5 J SETON Y DEWONCK TP1 1 3 2 W2 J13 BANANA_JACK J14 BANANA_JACK C67 1uF DRVDD FB2 C68 10 uF C69 47 uF C73 1uF 5VA Diff Driver 5V supply C74 1uF 5VA Diff Driver 5V supply 5VA PS 5VA PS J7 BANANA_JACK J8 BANANA_JACK FB5 FB6 J11 BANANA_JACK C87 10 uF C81 47 uF C88 10 uF C82...

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