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Texas Instruments ADS5263EVM Скачать руководство пользователя страница 5

EVM Circuit Description

Figure 5. Input Drive Circuit

–

Using THS770006 Amplifier

Table 1. Two-Input Configurations

EVM

Transformer Drive

THS770006 Drive

Description

Config

1

On channels 1, 2, 3, 4

On channel 3

●

All components in the transformer drive path for all four
channels are available in the EVM.

●

All components in the THS path for only channel 3 is available
in the EVM.

2

On channels 1, 2, 3, 4

On channels 1, 2, 3,

●

All components in the transformer and THS paths for all four

4

channels are available in the EVM.

Note that the 16-bit ADC and the 14-bit ADC have different analog input pins. Analog input pins 1A, 2A,
3A, 4A correspond to the 16-bit ADC inputs while 1B, 2B, 3B, 4B correspond to the 14-bit ADC inputs.
Each of the four transformer paths can be configured to drive either the 16-bit or 14-bit ADC inputs.
Similarly, each of the four THS paths can be configured to drive either the 16-bit or 14-bit ADC inputs.
This configuration is achieved using pairs of 0

Ω

SMT resistors, as listed in

Table 2. SMT Resistors

Chan 1A

Chan 1B

Chan 2A

Chan 2B

Drive Type

16-Bit ADC

14-Bit ADC

16-Bit ADC

14-Bit ADC

R80,R81 = Open

R98, R99 = Open

R169, R170 = Open

R171, R172 = Open

Transformer

R169,R170 = 0

Ω

R171, R172 = 0

Ω

R35, R153 = 0

Ω

R154, R155 = 0

Ω

R35, R153 =Open

R154, R155 = Open

R80, R81 = 0

Ω

R98, R99 = 0

Ω

THS770006

This option is not supported

This option is not supported

R169, R170 = Open

R171, R172 = Open

Chan 3A

Chan 3B

Chan 4A

Chan 4B

Drive Type

16-Bit ADC

14-Bit ADC

16-Bit ADC

14-Bit ADC

R138,R139 = Open

R125, R126 = Open

R173, R174 = Open

R175, R176 = Open

Transformer

R173, R174 = 0

Ω

R175, R176 = 0

Ω

R165, R166 = 0

Ω

R167, R168 = 0

Ω

R165, R166 = Open

R167, R168 = Open

R138, R139 = 0

Ω

R125, R126 = 0

Ω

THS770006

This option is not supported

This option is not supported

R173, R174 = Open

R175, R176 = Open

2.4

Onboard Band-Pass Filter in THS Path

A provision exists in the EVM to include a band-pass filter in the analog input between the THS770006
amplifier and the ADS5263 input pins. Component placeholders are provided to support up to sixth-order
LC band-pass filter on each of the four channels. This allows users to design their own filters, populate the
EVM with the corresponding components, and verify the performance on the EVM itself.

5

SLAU344

–

May 2011

ADS5263EVM Evaluation Module

Submit Documentation Feedback

Copyright

©

2011, Texas Instruments Incorporated

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Содержание ADS5263EVM

Страница 1: ... Figures 1 Evaluation Setup 2 2 AD5263 Sine Wave Clocking Using Transformer 3 3 ADS5263 Clocking Using a LVPECL Buffer 4 4 Input Drive Circuit Using Transformers 4 5 Input Drive Circuit Using THS770006 Amplifier 5 6 Band Pass Filter 6 7 ADS5263 GUI 9 8 ADS5263 GUI 10 9 EVM and TSW Card Connections 11 10 Initializing the ADS5263GUI 12 11 Successful Interface Between TSW Card and Computer 13 12 Enab...

Страница 2: ...w1250evm html Equipment Signal generators with low phase noise must be used as source of input signal and clock in order to get the desired performance Additionally band pass filters are required in both the signal and clock paths to attenuate the harmonics and noise from the generators Power Supply A single 5 V supply powers the EVM The supplies for the ADS5263 device are derived from the 5 V sup...

Страница 3: ... an impedance ratio of 4 so the voltage applied on J31 is stepped up by a factor of 2 The clock input must be from a clean low jitter source such as SMA100A or 8644B and filtered by a narrow band pass filter Taking into account the attenuation of the filter the clock amplitude must be set appropriately to get about 1 5 V peak to peak at the clock pins of the ADS5263 The clock source is commonly sy...

Страница 4: ... 14 bit ADC Each channel can be configured to use either a transformer coupled input or a TH77006 amplifier input from a single ended source As a result two input configurations exist detailed in Table 1 Figure 4 Input Drive Circuit Using Transformers 4 ADS5263EVM Evaluation Module SLAU344 May 2011 Submit Documentation Feedback Copyright 2011 Texas Instruments Incorporated ...

Страница 5: ...Drive Type 16 Bit ADC 14 Bit ADC 16 Bit ADC 14 Bit ADC R80 R81 Open R98 R99 Open R169 R170 Open R171 R172 Open Transformer R169 R170 0 Ω R171 R172 0 Ω R35 R153 0 Ω R154 R155 0 Ω R35 R153 Open R154 R155 Open R80 R81 0 Ω R98 R99 0 Ω THS770006 This option is not supported This option is not supported R169 R170 Open R171 R172 Open Chan 3A Chan 3B Chan 4A Chan 4B Drive Type 16 Bit ADC 14 Bit ADC 16 Bit...

Страница 6: ...ugging in the USB cable for the first time Unzip the installer file and run the setup exe file Step 2 Connect the USB cable from the PC to the EVM If the USB driver has not been previously installed in the PC then a Windows message Found New Hardware appears Proceed to Step 3 to complete the installation If the message does not appear then skip Step 3 Step 3 Completing the USB Driver Installation ...

Страница 7: ...t driver in these locations and enter the file path C Program Files Texas Instruments CDM 2 04 06 WHQL Certified in the combo box or browse to it by clicking the Browse button Once the file path has been entered in the box click Next to proceed 7 SLAU344 May 2011 ADS5263EVM Evaluation Module Submit Documentation Feedback Copyright 2011 Texas Instruments Incorporated ...

Страница 8: ...ignore file signature warnings no message appears 3 2 GUI Features Once it is launched the ADS5263 GUI comes up in the state shown in the following illustration The ADS5263 has many programmable registers to control various modes In the GUI registers with similar functions are grouped into separate tabs such as Top level Interface Dig Sig Proc 8 ADS5263EVM Evaluation Module SLAU344 May 2011 Submit...

Страница 9: ... the hexadecimal values for the register address and register data The command sequence can be used to record and store a sequence of register writes into a text file The next time after a device reset the text file can be simply played back The GUI configures the device with the registers stored in the text file 9 SLAU344 May 2011 ADS5263EVM Evaluation Module Submit Documentation Feedback Copyrig...

Страница 10: ... with TSW1250 it may be an earlier revision that does not support the ADS5263 device Follow the steps outlined in the relevant section of the TSW1250EVM user s guide to first uninstall and then re install the latest TSW1250 version 4 1 Verify the Setup Perform the following steps before launching the TSW1250 GUI Connect the TSW1250 card to the ADS5263EVM Connect the power supplies to both cards an...

Страница 11: ...e the device First reset the device by clicking the Self reset button this is a self clearing bit that resets the device and clears itself to zero Put device in 2 wire modes 11 SLAU344 May 2011 ADS5263EVM Evaluation Module Submit Documentation Feedback Copyright 2011 Texas Instruments Incorporated ...

Страница 12: ...indicates that the TSW card is able to correctly detect the bit clock output from the ADS EVM Launch the TSW GUI at this point the TSW GUI communicates with the EVM and once proper communication is established a message is displayed at the bottom left of the GUI This completes the setup verification 12 ADS5263EVM Evaluation Module SLAU344 May 2011 Submit Documentation Feedback Copyright 2011 Texas...

Страница 13: ...e the TSW GUI with the following settings Select the device Choose the channel Enter the ADC sample rate For example 100M for 100 MSPS sample rate Using the ADS5263 GUI enable the Ramp Test Pattern mode 13 SLAU344 May 2011 ADS5263EVM Evaluation Module Submit Documentation Feedback Copyright 2011 Texas Instruments Incorporated ...

Страница 14: ... unwrap waveform button Graph shows the captured time domain data It Must be a clean digital ramp that increases from code 0 to code 65535 from one sample to the next Note that the starting code in the capture graph is not fixed and can be anywhere from 0 to 65535 14 ADS5263EVM Evaluation Module SLAU344 May 2011 Submit Documentation Feedback Copyright 2011 Texas Instruments Incorporated ...

Страница 15: ...ncy being applied For example 3M for 3 MHz input frequency choose the desired channel Set the frequency in the signal generator to the value displayed in the field ADC Input Coherent frequency and connect the generator output to the desired channel This makes the input signal coherent with respect to the sampling clock which is required for FFT analysis Now press the Capture button and check the o...

Страница 16: ...ture Frequency Domain Select the Single tone FFT tab in the GUI The fft graph shows the spectrum of the captured sine wave data 16 ADS5263EVM Evaluation Module SLAU344 May 2011 Submit Documentation Feedback Copyright 2011 Texas Instruments Incorporated ...

Страница 17: ... 1 5V common mode output TP12 SDATA Serial interface data input TP13 SCLK Serial interface clock input TP14 CSZ Serial interface enable input TP15 ADCRESETZ Reset input TP16 PD Power down control input 6 ADS5263EVM PCB Layout The following figures Figure 16 through Figure 21 show the design of the ADS5263EVM printed circuit board PCB dimensions L x W 5 x 6 inches four layers and 0 5 oz copper on o...

Страница 18: ...3EVM PCB Layout www ti com Figure 16 ADS5263EVM Top Layer Assembly Drawing Top View 18 ADS5263EVM Evaluation Module SLAU344 May 2011 Submit Documentation Feedback Copyright 2011 Texas Instruments Incorporated ...

Страница 19: ...m ADS5263EVM PCB Layout Figure 17 ADS5263EVM Bottom Layer Assembly Drawing Bottom View 19 SLAU344 May 2011 ADS5263EVM Evaluation Module Submit Documentation Feedback Copyright 2011 Texas Instruments Incorporated ...

Страница 20: ...DS5263EVM PCB Layout www ti com Figure 18 ADS5263EVM Top Layer Copper Top View 20 ADS5263EVM Evaluation Module SLAU344 May 2011 Submit Documentation Feedback Copyright 2011 Texas Instruments Incorporated ...

Страница 21: ...i com ADS5263EVM PCB Layout Figure 19 ADS5263EVM Internal Layer 1 Ground Top View 21 SLAU344 May 2011 ADS5263EVM Evaluation Module Submit Documentation Feedback Copyright 2011 Texas Instruments Incorporated ...

Страница 22: ...263EVM PCB Layout www ti com Figure 20 ADS5263EVM Internal Layer 2 Power Top View 22 ADS5263EVM Evaluation Module SLAU344 May 2011 Submit Documentation Feedback Copyright 2011 Texas Instruments Incorporated ...

Страница 23: ... ti com ADS5263EVM PCB Layout Figure 21 ADS5263EVM Bottom Layer Copper Top View 23 SLAU344 May 2011 ADS5263EVM Evaluation Module Submit Documentation Feedback Copyright 2011 Texas Instruments Incorporated ...

Страница 24: ...2 2 R4 R78 56 2K Panasonic ECG ERJ 3EKF5622V RES 56 2K OHM 1 10W 1 0603 SMD 1 R6 50 Ω Panasonic ERJ 3EKF49R9V RES 49 9 OHM 1 10W 1 0603 SMD 8 R36 R37 R38 R39 R40 R41 R42 R43 25 Ω Panasonic ERJ 3EKF24R9V RES 24 9 OHM 1 10W 1 0603 SMD 2 R45 R48 100 Panasonic ERJ 3EKF1000V RES 100 OHM 1 10W 1 0603 SMD 1 R46 10 Ω Panasonic ERJ 3EKF10R0V RES 10 0 OHM 1 10W 1 0603 SMD 2 R53 R56 10K Panasonic ERJ 3EKF100...

Страница 25: ...acturer Part Number Description 4 STANDOFF HEX M3 THR ALUM 18MM Digi Key 24436K ND STANDOFF HEX M3 THR ALUM 18MM 4 SCREW STEEL M3 THR 6MM Digi Key 29311K ND SCREW STEEL M3 THR 6MM 25 SLAU344 May 2011 ADS5263EVM Evaluation Module Submit Documentation Feedback Copyright 2011 Texas Instruments Incorporated ...

Страница 26: ...nfig THS770006 based drive on all 4 channels Channel IN1A IN2A IN3A IN4A Title Size Rev Date Sheet of EDGE No ECR No EVM CONFIGURATION A ADS5263EVM A 1 8 Tuesday May 03 2011 2115370 6526733 Title Size Rev Date Sheet of EDGE No ECR No EVM CONFIGURATION A ADS5263EVM A 1 8 Tuesday May 03 2011 2115370 6526733 Title Size Rev Date Sheet of EDGE No ECR No EVM CONFIGURATION A ADS5263EVM A 1 8 Tuesday May ...

Страница 27: ...R77 56K D2 MBRB2515L D2 MBRB2515L 1 3 4 R152 56K R152 56K C25 10UF 6 3V C25 10UF 6 3V 1 2 C41 0 1uF 16V C41 0 1uF 16V C1 10UF 6 3V C1 10UF 6 3V 1 2 C26 1uF 16V C26 1uF 16V U10 TPS73201 SOT23 U10 TPS73201 SOT23 EN 3 IN 1 GND 2 OUT 5 NC FB 4 C5 10UF 6 3V C5 10UF 6 3V 1 2 C40 1uF 6 3V C40 1uF 6 3V 1 2 C6 1uF 6 3V C6 1uF 6 3V 1 2 C30 1uF 16V C30 1uF 16V C2 1uF 6 3V C2 1uF 6 3V 1 2 U12 TPS77533D U12 TP...

Страница 28: ...4 OUT1P 15 OUT1M 16 OUT2P 17 OUT2M 18 OUT3P 19 OUT3M 20 OUT4P 21 OUT4M 22 ADCLKP 23 ADCLKM 24 LCLKP 25 LCLKM 26 OUT5P 27 OUT5M 28 OUT6P 29 OUT6M 30 OUT7P 31 OUT7M 32 OUT8M 34 OUT8P 33 LVDD 35 LGND 36 AGND 37 AGND 40 AGND 43 AGND 46 IN4A_M 48 IN4A_P 47 IN4B_M 45 IN4B_P 44 IN3A_M 42 IN3A_P 41 IN3B_M 39 IN3B_P 38 SYNC 49 AVDD 50 ISET 51 NC 52 VCM 53 REFB 54 REFT 55 INT EXTZ 56 AVDD 57 CLKP 58 CLKM 59...

Страница 29: ... 4 8 Tuesday May 03 2011 2115370 6526733 T15 TC4 1W T15 TC4 1W 6 5 4 1 2 3 C124 1uF 16V C124 1uF 16V 1 2 130 ohm 130 ohm 1 2 R48 100 1 10W 1 R48 100 1 10W 1 M S A D E N J33 SMA M S A D E N J33 SMA 1 5 2 3 4 0 ohm 0 ohm 1 2 C126 1uF 16V C126 1uF 16V 82 ohm 82 ohm 1 2 C59 1uF 16V C59 1uF 16V 1 2 U21 CDCLVP1102 U21 CDCLVP1102 GND 1 NC1 2 NC2 3 NC3 4 VAC_REF 8 INN 7 INP 6 VCC 5 OUTP1 11 OUTN0 10 OUTP0...

Страница 30: ...3 R190 0 OHM R190 0 OHM 1 2 R189 0 OHM R189 0 OHM 1 2 TP12 TP12 L7 1K 100MHZ L7 1K 100MHZ 1 2 TP14 TP14 R191 0 OHM R191 0 OHM 1 2 TP15 TP15 J13 USB_MINI_AB USB J13 USB_MINI_AB USB VBUS 1 D 2 D 3 ID 4 GND 5 GND1 6 GND2 7 GND3 8 GND4 9 TP19 TP19 C150 47pF C150 47pF C149 10nF C149 10nF C151 4 7uF 20V C151 4 7uF 20V C154 1uF C154 1uF R192 0 OHM R192 0 OHM 1 2 C153 47pF C153 47pF R188 0 OHM R188 0 OHM ...

Страница 31: ... 1uF C79 1uF 1 2 R70 15 ohm R70 15 ohm R88 250 ohm R88 250 ohm C68 0 1 Uf C68 0 1 Uf 1 2 R95 200 ohm R95 200 ohm C85 1uF C85 1uF 1 2 L4 L4 1 2 R99 R99 L15 10 nH L15 10 nH 1 2 L12 0 Ohm L12 0 Ohm 1 2 R84 R84 L9 0 Ohm L9 0 Ohm 1 2 L10 L10 1 2 R96 15 ohm R96 15 ohm R55 R55 R75 200 ohm R75 200 ohm R98 R98 R92 0 ohm R92 0 ohm R87 250 ohm R87 250 ohm R80 R80 R171 0 ohm R171 0 ohm U17 THS770006 U17 THS77...

Страница 32: ... ohm R139 0 ohm R139 0 ohm L29 L29 1 2 L18 0 Ohms L18 0 Ohms 1 2 C98 C98 1 2 C120 C120 1 2 M S A D E N J29 SMA M S A D E N J29 SMA 1 5 2 3 4 C97 C97 1 2 R119 0 ohm R119 0 ohm C109 C109 1 2 C113 C113 1 2 C119 1uF C119 1uF 1 2 R173 R173 C116 1uF C116 1uF 1 2 R175 0 ohm R175 0 ohm L24 L24 1 2 R111 R111 R106 R106 C104 C104 1 2 C94 1uF C94 1uF 1 2 R133 0 ohm R133 0 ohm R174 R174 R110 R110 C103 C103 1 2...

Страница 33: ...1 R38 25 ohm R38 25 ohm M S A D E N J19 SMA M S A D E N J19 SMA 1 5 2 3 4 C51 220 pF C51 220 pF 1 2 R67 12 4 Ohm R67 12 4 Ohm R36 25 ohm R36 25 ohm R168 0 ohm R168 0 ohm C58 220 pF C58 220 pF 1 2 R35 0 ohm R35 0 ohm R60 12 4 Ohm R60 12 4 Ohm L32 56 nH L32 56 nH 1 2 T33 WBC1 1 T33 WBC1 1 6 5 4 3 2 1 R59 12 4 Ohm R59 12 4 Ohm R61 12 4 Ohm R61 12 4 Ohm M S A D E N J17 SMA M S A D E N J17 SMA 1 5 2 3 ...

Страница 34: ...uct This notice contains important safety information about temperatures and voltages For additional information on TI s environmental and or safety programs please contact the TI application engineer or visit www ti com esh No license is granted under any patent right or other intellectual property right of TI covering or relating to any machine process or combination in which such TI products or...

Страница 35: ...horized for use in safety critical applications such as life support where a failure of the TI product would reasonably be expected to cause severe personal injury or death unless officers of the parties have executed an agreement specifically governing such use Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications and acknowledge ...

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