Analog Devices AD9959/PCB Скачать руководство пользователя страница 27

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AD9959/PCB

Rev. 0 | Page 26 of 28

P1
P3
P5
P7
P9
P11
P13
P15
P17
P19
P21
P23
P25

P2
P4
P6
P8

P10
P12
P14
P16
P18
P20
P22
P24
P26

1
3
5
7
9

13
15
17
19
21
23
25

2
4
6
8
10
12
14
16
18
20
22
24
26

U13

GND

PWR_DWN_U

RESET_U

SCLK_U

CSB_U

IO_UPDATE_U

IP3_U

P2_U
P1_U
P0_U

SDIO_0

R71

Ω

GND

P1
P3
P5
P7
P9
P11
P13
P15
P17
P19
P21
P23
P25

P2
P4
P6
P8

P10
P12
P14
P16
P18
P20
P22
P24
P26

1
3
5
7
9

11
13
15
17
19
21
23
25

2
4
6
8
10
12
14
16
18
20
22
24
26

GND

P0
P1
P2
P3

IO_UPDATE

CSB

SCLK

RESET

PWR_DWN

SDIO_3
SDIO_2
SDIO_1

GND
GND
GND
GND

GND
GND
GND

R67 1k

Ω

R66 1k

Ω

R29 1k

Ω

R65 1k

Ω

R68 1k

Ω

R69 1k

Ω

R70 1k

Ω

74LVC14A

USB_STATUS

R15

300

Ω

CR2

GND

R16

800

Ω

CR1

GND

VBUS

OE2

OE1

74LVC541A

GND:10

VCC_USB:20

PWR_DWN

RESET

SCLK

CSB

PWR_DWN_U

RESET_U

SCLK_U

CSB_U

VCC_USB

GND

OE2

OE1

74LVC541A

GND:10

VCC_USB:20

IO_UPDATE

RURD_0

RURD_1

RURD_2

P3_U

P2_U

P1_U

P0_U

PC_CTRL

RURD_0_U

RURD_1_U

RURD_2_U

J14

J15

I/O UPDATE IN

I/O UPDATE OUT

I/O_UPDATE_U

U12

74LVC32A

GND

R13
50

Ω

PC_CTRL

I/O BUFFERS

USB I/O

C39

22pF

GND

C40

22pF

GND

24MHz

PD4/FD12

PD3/FD11

PD2/FD10

PD1/FD9

PD0/FD8

WAKEUP

VCC7

RESET

GND6

PA7/FLAGD/SLC5

PA6/PKTEND

PA5/FIFOADR1

PA4/FIFOADR0

PA3/WU2

PA2/SLOE

PA1/INT1

PA0/INT0

VCC6

CTL2/FLAGC

CTL1/FLAGB

CTL0/FLAGA

GND5

VCC5

GND4

PB7/FD7

PB6/FD6

PB5/FD5

PB4/FD4

PD5/FD13

PD6/FD14

PD7/FD15

GND1

CLKOUT

VCC1

GND2

ADY0/SLRD

RDY1/SLWR

AVCC

XTALOUT

XTALIN

AGND

VCC2

DPLUS

DMINUS

GND3

VCC3

GND

IFCLK

RESERVED

SCL

SDA

VCC4

PB0/FD0

PB1/FD1

PB2/FD2

PB3/FD3

CY7C68013

RURD_0_U

RURD_1_U

RURD_2_U

GND

VCC_USB

GND

VCC_USB

GND

VCC_USB

GND

VCC_USB

GND

VCC_USB

IO_UPDATE_U

P3_U

P2_U

P1_U

P0_U

VCC_USB

GND

PWR_DWN_U

RESET_U

CSB _U

USB_STATUS

VCC_USB

SCLK_U

GND

VCC_USB

GND

VCC_USB

C43
10

R12
100k

Ω

GND

VCC_USB

C41
1

R17
100k

Ω

GND

VBUS

D–

D+

GND

SHIELD0

SHIELD1

USB_HDR

VCC

NC4

SCL

SCA

24LC00

NC1

NC2

NC3

VSS

GND

VCC_USB

VBUS

GND

C92
4700pF

R20
1M

Ω

GND1

SDIO_0

SDIO_1

SDIO_2

SDIO_3

RURD_0

RURD_1

RURD_2

W10

R14
2.2k

Ω

GND

R19

2.2k

Ω

R18

2.2k

Ω

VCC_USB

GND

C24
0.1

C25
0.1

C26
0.1

C27
0.1

C28
0.1

C29
0.1

C30
0.1

C31
0.1

C32
0.1

C33
0.1

C23
0.1

C59
0.1

C61
0.1

C42
2.2

VCC_USB

GND

AVDD3

BG_VDD

R36
0

Ω

R37
0

Ω

R35
0

Ω

R33
0

Ω

R34
0

Ω

R32
0

Ω

CLK_VDD

BG_VDD

R38
0

Ω

R39
0

Ω

R40
0

Ω

R41
0

Ω

R42
0

Ω

R43
0

Ω

AVDD0

CLK_VDD

R44
0

Ω

R45
0

Ω

R46
0

Ω

R47
0

Ω

R48
0

Ω

R49
0

Ω

USB BYPASS CAPACITORS

I/O HEADERS

05698-053

Figure 50. AD9959/PCB Schematic, Page 3

Содержание AD9959/PCB

Страница 1: ...nderutilized and idle equipment along with credit for buybacks and trade ins Custom engineering so your equipment works exactly as you specify Critical and expedited services Leasing Rentals Demos In...

Страница 2: ...CLK J9 REFCLK MULTIPLIER 4 TO 20 J13 J11 J12 SYNC CLK SYNC IN SYNC OUT 4 SYS CLK TIMING AND CONTROL LOGIC DDS 1 AD9959 EVALUATION BOARD Figure 1 FEATURES Full featured evaluation board for the AD9959...

Страница 3: ...valuation Board Software 5 Installing the Software 5 Configuring the Evaluation Board 5 Windows 98 ME 2000 Users 5 Windows XP Users 6 Loading the Software 7 Status Messages upon Loading Software 8 Fea...

Страница 4: ...VCC_USB 3 3 TB1 2 DVDD_I O 3 3 TB1 3 GND 0 TB1 4 DVDD 1 8 J10 CLK_VDD 1 8 J16 AVDD 1 8 J17 AVDD 1 8 J18 BG_VDD 1 8 J19 AVDD 1 8 J20 AVDD 1 8 Note that the AD9959 PCB is preconfigured so that the CLK_...

Страница 5: ...59 s clock input circuitry Clock Mode Select Controls whether the part is driven by a 20 MHz to 30 MHz crystal provided by the user or by an external signal generator such as Ref Clk Ref Clk Input Inp...

Страница 6: ...OARD Once the software has been successfully installed onto your PC the next step is to interface the AD9959 evaluation software to the AD9959 evaluation board via the USB Port see Figure 2 In order f...

Страница 7: ...rd illuminates 3 When the USB cable is connected the screen below appears Figure 7 Click Next to continue 05698 007 Figure 7 4 Click Continue Anyway when you see the window in Figure 8 05698 008 Figur...

Страница 8: ...are make sure that the AD9959 evaluation board is powered up connected to the computer and that the USB Status LED is flashing 2 Click on the Start button located at the bottom left hand corner of you...

Страница 9: ...15 Scrolling up through the status box with the cursor will indicate why the software did not load correctly Most status message errors can be resolved by checking jumper settings making sure that the...

Страница 10: ...AD9959 evaluation software is set to Auto I O Update so that when LOAD is clicked an I O update signal is automatically sent to the device If synchronization across channels is desired use the Manual...

Страница 11: ...file Pin 3 to control this feature using only Profile Pin 3 If you wish to use the SDIO data pins to control this feature simply select Use SDIO pins 1 2 3 Note that to use the SDIO pins to control th...

Страница 12: ...section in the Level box 4 Linear Sweep Options Use the Linear Sweep Options section to control the linear sweep features Select Enable Linear Sweep to turn on the linear sweep function and the addit...

Страница 13: ...ct either Full Scale default setting Scale Scale or Scale for the DAC output current See the Scalable DAC Reference Current Control Mode section of the AD9959 data sheet 7 Output Waveform In the Outpu...

Страница 14: ...the linear frequency sweep and the first level in frequency modulation FSK Phase Offset consists of two boxes In the first box set the integer factor 1 999 to increment or decrement the phase offset...

Страница 15: ...to the device 2 Profile Registers The AD9959 features up to 16 programmable registers per channel as shown in Figure 23 Due to certain channel constraints however there are limitations on how the Prof...

Страница 16: ...ection of the AD9959 data sheet 4 Linear Sweep Setup Use the Linear Sweep Setup section to setup the slope of the linear sweep In the Rising Step Size box enter the desired value for the rising step s...

Страница 17: ...erial port state machine Select LSB First to change the data format to LSB first from the default setting of MSB first Use the Serial I O Mode drop menu to select the desired serial I O mode of operat...

Страница 18: ...les serve as a reference and or starting point when trying to configure the device for a desired setup for the first time To load these setup files click File and select Load Setup Figure 33 or click...

Страница 19: ...The Chip Level Control window Figure 37 from this particular setup shows that a 500 MHz System Clock is running with the RU RD operation enabled In the RU RD box Use Profile Pins 2 3 has been selecte...

Страница 20: ...ction P0 controls Channel 0 P1 controls Channel 1 P2 controls Channel 2 and P3 controls Channel 3 If a profile pin is deselected the associated channel s output will return to 0 MHz To return to full...

Страница 21: ...010 Referring to the table in the 16 Level Modulation No RU RD section of the AD9959 data sheet we see that this bit pattern sets up 16 level modulation on Channel 2 05698 041 Figure 41 In the Channel...

Страница 22: ...output frequency is equivalent to the value entered in the Frequency 00 box 3 MHz in this setup If all profile pins are pressed the output frequency is equal to 48 MHz the contents of Profile Registe...

Страница 23: ...to ensure synchronization across channels and reinitialize the starting point once the linear sweep ends 05698 045 Figure 45 In the Channel Control window Figure 46 each channel has Amplitude selecte...

Страница 24: ...ing that the sweep begins at half scale and sweeps up to full scale Amplitude 01 ending point of sweep In the Linear Sweep Setup section the rising falling step size and step intervals of the sweep ar...

Страница 25: ...2 1 4 5 6 R6 50 R5 50 ADTT1 1 AVDD1 AVDD1 AVDD3 DAC3_OUT GND 3 2 1 4 5 6 R8 50 R7 50 ADTT1 1 AVDD0 AVDD0 T4 T5 DAC1 AD9958 DAC3 AD9959 DAC0 AD9958 DAC2 AD9959 GND R11 1 91k ETC1 1 13 1 5 3 4 T1 PRI SE...

Страница 26: ...L9 DAC 1 DUT FILTER OUT J5 DAC 1 AD9959 DUT OUT FILTER IN R22 0 R23 0 DAC1_OUT J1 200MHz LOW PASS FILTER C72 _F C76 _F C71 _F C74 _F C73 _F C75 _F C80 _F C77 _F C78 _F L5 GND GND GND GND GND GND GND G...

Страница 27: ...7 18 19 20 21 22 23 24 25 26 27 28 PD4 FD12 PD3 FD11 PD2 FD10 PD1 FD9 PD0 FD8 WAKEUP VCC7 RESET GND6 PA7 FLAGD SLC5 PA6 PKTEND PA5 FIFOADR1 PA4 FIFOADR0 PA3 WU2 PA2 SLOE PA1 INT1 PA0 INT0 VCC6 CTL2 FL...

Страница 28: ...charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection Although this product features proprietary ESD protection circuitry permanent dam...

Страница 29: ...AD9959 PCB Rev 0 Page 28 of 28 2005 Analog Devices Inc All rights reserved Trademarks and registered trademarks are the property of their respective owners EB05698 0 10 05 0 NOTES...

Страница 30: ...uipment Have surplus equipment taking up shelf space We ll give it a new home Learn more Visit us at artisantg com for more info on price quotes drivers technical specifications manuals and documentat...

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