AD9284-250EBZ User Guide - Analog Devices
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Transcript of AD9284-250EBZ User Guide - Analog Devices
AD9284-250EBZ User Guide UG-178
One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com
Evaluating the AD9284 Analog-to-Digital Converter
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT WARNING AND LEGAL TERMS AND CONDITIONS. Rev. A | Page 1 of 24
FEATURES Full featured evaluation board for the AD9284 SPI interface for setup and control Support LVDS output mode option External or on-board oscillator options Balun/transformer or amplifier input drive options Switching power supply VisualAnalog™ and SPIController software interfaces
EQUIPMENT NEEDED Analog signal source and antialiasing filter Sample clock source (if not using the on-board oscillator) Two switching power supplies (6.0 V, 2.5 A),
CUI EPS060250UH-PHP-SZ, provided PC running 32-bit Windows® XP, Window Vista, or Windows 7 USB 2.0 port, recommended (USB 1.1-compatible) AD9284 evaluation board HSC-ADC-EVALCZ FPGA-based data capture kit
SOFTWARE NEEDED VisualAnalog SPIController
DOCUMENTS NEEDED AD9284 data sheet HSC-ADC-EVALCZ data sheet AN-905 Application Note, VisualAnalog Converter Evaluation
Tool Version 1.0 User Manual AN-878 Application Note, High Speed ADC SPI Control Software AN-877 Application Note, Interfacing to High Speed ADCs via SPI AN-835 Application Note, Understanding High Speed ADC
Testing and Evaluation
GENERAL DESCRIPTION This user guide describes the AD9284 evaluation board, which provides all of the support circuitry required to operate the AD9284 in its various modes and configurations. The application software used to interface with the device is also described.
The AD9284 data sheet provides additional information and should be consulted when using the evaluation board. All documents and software tools are available at the FIFO page. For additional information or questions, send an email to [email protected].
TYPICAL MEASUREMENT SETUP
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8-00
1
9284EE01REV A
AD92849284EE02A
HSC-ADC-EVALCZ
Figure 1. AD9284 Evaluation Board and HSC-ADC-EVALCZ Data Capture Board
UG-178 AD9284-250EBZ User Guide
Rev. A | Page 2 of 24
TABLE OF CONTENTS Features .............................................................................................. 1 Equipment Needed ........................................................................... 1 Software Needed ............................................................................... 1 Documents Needed .......................................................................... 1 General Description ......................................................................... 1 Typical Measurement Setup ............................................................ 1 Revision History ............................................................................... 2 Evaluation Board Hardware ............................................................ 3
Power Supplies .............................................................................. 3
Input Signals...................................................................................3 Output Signals ...............................................................................3 Default Operation and Jumper Selection Settings ....................4
Evaluation Board Software Quick Start Procedures .....................5 Configuring the Board .................................................................5 Using the Software for Testing .....................................................5
Evaluation Board Schematics and Artwork ...................................9 Ordering Information .................................................................... 22
Bill of Materials ........................................................................... 22
REVISION HISTORY 6/14—Rev. 0 to Rev. A
Changes to Figure 13 ........................................................................ 9 Changes to Figure 14 ...................................................................... 10 Changes to Figure 15 ...................................................................... 11 Changes to Figure 16 ...................................................................... 12 Changes to Figure 17 ...................................................................... 13 Changes to Figure 18 ...................................................................... 14 Changes to Figure 19 ...................................................................... 15
5/11—Revision 0: Initial Version
AD9284-250EBZ User Guide UG-178
Rev. A | Page 3 of 24
EVALUATION BOARD HARDWARE The AD9284 evaluation board provides all of the support circuitry required to operate the AD9284 in its various modes and configurations. Figure 2 shows the typical bench charac-terization setup used to evaluate the ac performance of the AD9284. It is critical that the signal sources used for the analog input and clock have very low phase noise (<1 ps rms jitter) to realize the optimum performance of the signal chain. Proper filtering of the analog input signal to remove harmonics and lower the integrated or broadband noise at the input is necessary to achieve the specified noise performance.
See the Evaluation Board Software Quick Start Procedures section to get started, and see Figure 13 to Figure 25 for the complete schematics and layout diagrams. These diagrams demonstrate the routing and grounding techniques that should be applied at the system level when designing application boards using the AD9284.
POWER SUPPLIES This evaluation board comes with a wall-mountable switching power supply that provides a 6 V, 2 A maximum output. Connect the supply to the rated 100 V ac to the 240 V ac wall outlet at 47 Hz to 63 Hz. The output from the supply is provided through a 2.1 mm inner diameter jack that connects to the printed circuit board (PCB) at J101. The 6 V supply is fused and conditioned
on the PCB before connecting to the low dropout linear regulators (default configuration) that supply the proper bias to each of the various sections on the board.
INPUT SIGNALS When connecting the clock and analog source, use clean signal generators with low phase noise, such as the Rohde & Schwarz SMA, or HP8644B signal generators or an equivalent. Use a 1 m shielded, RG-58, 50 Ω coaxial cable for connecting to the evaluation board. Enter the desired frequency and amplitude (see the specifications in the AD9284 data sheet). When connecting the analog input source, a multipole, narrow-band, band-pass filter with 50 Ω terminations is recommended. Analog Devices, Inc., uses TTE and K&L Microwave, Inc., band-pass filters. The filters should be connected directly to the evaluation board.
If an external clock source is used, it should also be supplied with a clean signal generator as previously specified. Typically, most Analog Devices evaluation boards can accept ~2.8 V p-p or 13 dBm sine wave input for the clock.
OUTPUT SIGNALS The default setup uses the Analog Devices high speed converter evaluation platform (HSC-ADC-EVALCZ) for data capture.
6V DC2A MAX
6V DC2A MAXSWITCHING
POWERSUPPLY
SWITCHINGPOWERSUPPLY
WALL OUTLET100V TO 240V AC
47Hz TO 63Hz
PC RUNNINGVisualAnalog
AND SPIControllerUSER SOFTWARE
SIGNAL GENERATOR
CLOCK SOURCE
SIGNAL GENERATOR
ANALOG FILTER
SIGNAL GENERATOR
ANALOG FILTER
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8 -0
02
9284EE01REV A
AD92849284EE02A
HSC-ADC-EVALCZ
Figure 2. Evaluation Board Connection
UG-178 AD9284-250EBZ User Guide
Rev. A | Page 4 of 24
DEFAULT OPERATION AND JUMPER SELECTION SETTINGS This section explains the default and optional settings or modes allowed on the AD9284 evaluation board.
Power Circuitry
Connect the switching power supply that is supplied in the evaluation kit between a rated 100 V ac to 240 V ac wall outlet at 47 Hz to 63 Hz and J101.
Analog Input
The A and B channel inputs on the evaluation board are set up as simultaneous channel sampling using a single transformer (per channel) analog input with a 50 Ω impedance. The default analog input configuration supports analog input frequencies of up to ~200 MHz. This input network is optimized to support a wide frequency band. See the AD9284 data sheet for additional information on the recommended networks for different input frequency ranges. The nominal input drive level is 10.5 dBm to achieve 1.5 V p-p full scale into 50 Ω. At higher input frequencies, slightly higher input drive levels are required due to losses in the front-end network.
VREF
The AD9284 operates with a fixed 1.0 V reference. This sets the analog input span to 1.5 V p-p.
RBIAS
RBIAS has a default setting of 10 kΩ (R206) to ground and is used to set the ADC core bias current. Note that using a resistor value other than a 10 kΩ, 1% resistor for RBIAS may degrade the performance of the device.
Clock Circuitry
The default clock input circuit on the AD9284 evaluation board uses a simple transformer-coupled circuit using a high bandwidth 1:1 impedance ratio transformer (T501) that adds a very low amount of jitter to the clock path. The clock input is 50 Ω terminated and ac-coupled to handle single-ended sine wave types of inputs. The transformer converts the single-ended input to a differential signal that is clipped by CR501 before entering the ADC clock inputs. The AD9284 board has on-chip circuitry to distribute a single clock to both ADC channels.
Non-SPI Mode
For users who want to operate the DUT without using SPI, remove the shorting jumpers on J302. This disconnects the CSB, SCLK, and SDIO/PWDN pins from the SPI control bus, allowing the DUT to operate in non-SPI mode. In this mode, the SDIO/PWDN pin takes on an alternate function to enable power down functionality.
To enable the power-down feature, add a shorting jumper across J202 at Pin 2 and Pin 3 to connect the SDIO/PDWN pin to DRVDD.
AD9284-250EBZ User Guide UG-178
Rev. A | Page 5 of 24
EVALUATION BOARD SOFTWARE QUICK START PROCEDURES This section provides quick start procedures for using the AD9284 evaluation board. Both the default and optional settings are described.
CONFIGURING THE BOARD Before using the software for testing, configure the evaluation board using the following steps:
1. Connect the evaluation board to the data capture board, as shown in Figure 1 and Figure 2.
2. Connect one 6 V, 2.5 A switching power supply (such as the CUI, Inc., EPS060250UH-PHP-SZ) to the AD9284 board.
3. Connect one 6 V, 2.5 A switching power supply (such as the supplied CUI EPS060250UH-PHP-SZ) to the HSC-ADC-EVALCZ board.
4. Connect the HSC-ADC-EVALCZ board to the PC with a USB cable.
5. On the ADC evaluation board, confirm that six jumpers are installed as described as follows: • J103, Pin 2 and Pin 3 (clock with regulator) • J104, Pin 2 and Pin 3 (amp with regulator) • J105, Pin 2 and Pin 3 (DRVDD with regulator) • J106, Pin 2 and Pin 3 (AVDD with regulator) • J201, Pin 1 and Pin 2 (SCLK SPI) • J202, Pin 1 and Pin 2 (SDIO SPI)
6. On the ADC evaluation board, use a clean signal generator with low phase noise to provide an input signal to the desired A and/or B channel(s). Use a 1 m, shielded, RG-58, 50 Ω coaxial cable to connect the signal generator. For best results, use a narrow-band band-pass filter with 50 Ω terminations and an appropriate center frequency. (Analog Devices uses TTE, Allen Avionics, and K&L band-pass filters.)
USING THE SOFTWARE FOR TESTING Setting Up the ADC Data Capture
After configuring the board, set up the ADC data capture using the following steps:
1. Open VisualAnalog on the connected PC. The appro-priate part type should be listed in the status bar of the VisualAnalog – New Canvas window. Select the template that corresponds to the type of testing to be performed (see Figure 3). Note that once power is applied to the AD9284 evaluation board, the device is powered down. To wake up the device, the SDIO/PWDN pin must be pulled low. This occurs automatically by VisualAnalog after you complete Step 1.
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Figure 3. VisualAnalog, New Canvas Window
2. After the template is selected, a message appears asking if the default configuration can be used to program the FPGA (see Figure 4). Click Yes to close the window.
0 92 2
8 -0 0
4
Figure 4. VisualAnalog Default Configuration Message
3. To change features to settings other than the default settings, click the Expand Display button, located on the bottom right corner of the window, to see what is shown in Figure 6. Detailed instructions for changing the features and capture settings can be found in the AN-905 Application Note, VisualAnalog Converter Evaluation Tool Version 1.0 User Manual. After the changes are made to the capture settings, click the collapse display button (see the collapsed display in Figure 5).
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Figure 5. VisualAnalog Window Toolbar, Collapsed Display
UG-178 AD9284-250EBZ User Guide
Rev. A | Page 6 of 24
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Figure 6. VisualAnalog Main Window
AD9284-250EBZ User Guide UG-178
Rev. A | Page 7 of 24
Setting Up the SPIController Software
After the ADC data capture board setup is complete, set up the SPIController software using the following procedure:
1. Open the SPIController software by selecting Start > SPIController or by double-clicking the SPIController software desktop icon. If prompted for a configuration file, select the appropriate one. If not, check the title bar of the window to determine which configuration is loaded. If necessary, choose Cfg Open from the File menu and select the appropriate file based on your part type. Note that the CHIP ID(1) field should be filled to indicate whether the correct SPIController configuration file is loaded (see Figure 7).
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Figure 7. SPIController, CHIP ID(1) Box
2. Click the New DUT button in the SPIController window (see Figure 8).
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8
Figure 8. SPIController, New DUT Button
3. In the ADCBase 0 tab of the SPIController window, you can access all global register settings (see Figure 9). See the AD9284 data sheet; the AN-878 Application Note, High Speed ADC SPI Control Software; and the AN-877 Application Note, Interfacing to High Speed ADCs via SPI, for additional information.
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Figure 9. SPIController, ADC Base0
4. Note that other settings can be changed on the ADCBase 0 page (see Figure 9) and the ADC A and ADC B pages (see Figure 10) to set up the part in the desired mode. The ADCBase 0 page settings affect the entire part, whereas the settings on the ADC A and ADC B pages affect the selected channel only. See the AD9284 data sheet; the AN-878 Application Note, High Speed ADC SPI Control Software; and the AN-877 Application Note, Interfacing to High Speed ADCs via SPI, for additional information on the available settings.
0922
8-01
0
Figure 10. SPIController, ADC A Page
UG-178 AD9284-250EBZ User Guide
Rev. A | Page 8 of 24
5. Click the Run button in the VisualAnalog toolbar (see Figure 11).
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Figure 11. Run Button in VisualAnalog Toolbar, Collapsed Display
Adjusting the Amplitude of the Input Signal
The next step is to adjust the amplitude of the input signal for each channel as follows:
1. Adjust the amplitude of the input signal so that the funda-mental is at the desired level (examine the Fund Power reading in the left panel of the VisualAnalog Graph - AD9284 FFT window). See Figure 12.
092 2
8-01
2
Figure 12. Graph Window of VisualAnalog
2. Repeat this procedure for Channel B. 3. Click the disk icon within the Graph window to save the
performance plot data as a .csv formatted file.
Troubleshooting Tips
If the FFT plot appears abnormal, do the following:
• If you see a normal noise floor when you disconnect the signal generator from the analog input, be sure you are not overdriving the ADC. Reduce the input level, if necessary.
• In VisualAnalog, click the Settings button in the Input Formatter block. Check that Number Format is set to the correct encoding (offset binary by default). Repeat for the other channel.
If the FFT appears normal but the performance is poor, check the following:
• Make sure an appropriate filter is used on the analog input. • Make sure the signal generators for the clock and the
analog input are clean (low phase noise). • Change the analog input frequency slightly if noncoherent
sampling is being used. • Make sure the SPI configuration file matches the product
being evaluated.
If the FFT window remains blank after Run is clicked, do the following:
• Make sure the evaluation board is securely connected to the HSC-ADC-EVALCZ board.
• Make sure the FPGA has been programmed by verifying that the DONE LED is illuminated on the HSC-ADC-EVALCZ board. If this LED is not illuminated, make sure the U4 switch on the HSC-ADC-EVALCZ board is in the correct position for USB configuration.
• Make sure the correct FPGA program was installed by selecting the Settings button in the ADC Data Capture block in VisualAnalog. Then select the FPGA tab and verify that the proper FPGA bin file is selected for the part.
If VisualAnalog indicates that the FIFO Capture timed out, do the following:
• Make sure all power and USB connections are secure. • Probe the DCOA signal at RN601 on the evaluation board
and confirm that a clock signal is present at the ADC sampling rate.
AD9284-250EBZ User Guide UG-178
Rev. A | Page 9 of 24
EVALUATION BOARD SCHEMATICS AND ARTWORK
09228-013
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UG-178 AD9284-250EBZ User Guide
Rev. A | Page 10 of 24
09228-014
AV
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DURING LAYOUT CHECK IF WE CAN FIT 0402 ELSE 0201
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Figure 14. DUT and Related Circuits
AD9284-250EBZ User Guide UG-178
Rev. A | Page 11 of 24
09228-015
SPI
CIRC
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1
C30
1
R308 R309
R30
5
R30
2
R30
3
R304
R301
C30
2
46
5 2
31
U30
2
R306 R307
100K 100K
100K
10K 10K
10K
1.1K
1.1K
1.1K
00
0
SC
LK_D
UT
CS
B_D
UT
SC
LK_D
UT_
1P8
CS
B_D
UT_
1P8
SD
IO_D
UT_
1P8
SD
IO_D
UT
US
B_S
CLK
SP
I_D
VD
D
3.3V
_CLK
SP
I_D
VD
D
US
B_S
DI
US
B_C
SB
NC
7WZ1
6P6X
0.1U
F
US
B_S
DO
0.1U
F
NC
7WZ0
7P6X
VC
CY
1A
1
A2
GN
D
Y2
Y2
Y1
A2
A1
GN
D
VC
C
Figure 15. SPI Interface Circuit
UG-178 AD9284-250EBZ User Guide
Rev. A | Page 12 of 24
09228-016
AIN
_AM
P
PA
SS
IVE
PA
TH B
AC
TIV
E P
ATH
A A
ND
B
SH
AR
E P
AD
S
LAY
OU
T: S
MA
'S S
HO
ULD
BE
540
MIL
S C
EN
TER
TO
CE
NTE
R
PA
SS
IVE
PA
TH A
THE
SE
0 O
HM
S A
RE
TH
ER
E F
OR
ALI
AS
ES
.W
E D
ON
'T R
EQ
UIR
E T
HE
SE
CO
MP
ON
EN
TS
LAY
OU
T: S
MA
'S S
HO
ULD
BE
540
MIL
S C
EN
TER
TO
CE
NTE
R
SH
AR
E P
AD
S
AIN
_A +
AIN
_A -
AIN
_B +
AIN
_B -
SH
AR
E P
AD
S
SH
AR
E P
AD
S
R45
0
R44
9
R45
1
54
32
1J4
06
R44
7
R44
6
R44
4
R44
5
C41
6
C41
7
R44
1
R44
0
R43
9
R43
8R
442
R44
3
C419C418
9 12P
AD
1 4
13141516
113
87
65
102
U40
1
R43
7
R43
65
43
2
1J4
05
54
32
1J4
03
R41
8
R42
0C
409
R42
2
54
32
1J4
04
R41
9
R42
1C
410
6 42
3 1T404
5 431
T405
5
43
1
T406
R42
6
C41
2R
425
C41
1
R42
3 R42
4
R42
9C41
3
R42
8
R43
0
R42
7
R43
2
C414
C415
R43
1
R43
4
R435
R43
3
R41
6
R41
7R
415
R41
4
C407
C406
C40
4
C40
3
R40
6
R448
R41
2
R41
3
R41
0 C40
5
R40
7
R41
1
R40
9R40
8
5
43
1
T403
5 431
T402
6 42
3 1T401
R40
5
C40
1R
403
C40
2
R40
1
R40
4
R40
2
54
32
1J4
01
54
32
1J4
02
0 DN
I
0
0 0 DN
I
DNITBD0402
DNITBD0402
AD
A49
37-1
YC
PZ-
R7
0.1U
F
0.1U
F
AIN
_B-
AIN
_B+
AIN
_A+
AIN
_A-
ETC1-1-13
2.7PFDNI
4.7PF
0.1U
F
3.3V
_AM
PV
DD
0.1UF
ETC1-1-13
AD
T1-1
WT+
DNI
ETC
1-1-
13
DNI
0.1U
F
4.7PF
2.7PF
AD
T1-1
WT+
0.1U
F
0.1U
F
0.1U
F
0.1U
F
0.1UF
0.1U
F
DN
I
DN
I
0.1U
F
ETC
1-1-
13
0.1U
F
DNI
DNI DNI
DN
I
DN
I
DN
I
DN
IDN
I
10U
F
0
0
0 000
0
0DN
I
AM
P_O
UT_
B+
0
0DN
I
AM
P_O
UT_
B-
DN
I
0 AM
P_O
UT_
A+
0
0DN
I
AM
P_O
UT_
A-
0 0
0 0
0
DN
I0
AM
P_O
UT_
A+
DN
I0
AM
P_O
UT_
A-
DN
I0A
MP
_OU
T_B
-
DN
I0
AM
P_O
UT_
B+
0C
MV
_OU
T
0
CM
V_O
UT
0C
MV
_OU
T
3333
3333 33 33
33 33
24 DN
I
24 DN
I
49.9
DN
I
49.9
DN
I
49.9 DN
I49.9
DN
I
200
200
200
200
61.9
DN
I
DN
I27
.4
SE
CP
RI
SEC PRI
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
SEC PRI
GN
D
SE
CP
RI
GN
D
GN
D
GN
D GN
D
GN
D
GN
DP
AD
PD
_N
VO
CM
-VS
+VS
-IN+IN
FB+O
UT
+OU
T-O
UT
FB-O
UT
GN
D
GN
DG
ND
GN
DG
ND
GN
D
GN
DG
ND
GN
D
Figure 16. Analog Input Circuits
AD9284-250EBZ User Guide UG-178
Rev. A | Page 13 of 24
09228-017
OPT
ION
AL C
LOC
K B
INPU
T
CLK
_B +
CLK
_B -
SHAR
E PA
DS?
2ND
CR
IS T
O M
AKE
LAYO
UT
AND
PAR
ASIT
IC L
OAD
ING
SYM
MET
RIC
AL
CLK
_A +
CLK
_A -
LAYO
UT:
SM
A'S
SHO
ULD
BE
540
MIL
S C
ENTE
R T
O C
ENTE
R
OPT
ION
AL C
RYS
TAL
OSC
IALL
ATO
R C
LOC
K SO
UR
CE
SHARE PADSSHARE PADS
OPT
ION
AL T
ERM
INAT
ION
NEA
R D
UT
SHAR
E PA
DS?
XFM
R /
BALU
N C
LK C
IRC
UIT
RY
OPT
ION
AL T
ERM
INAT
ION
NEA
R D
UT
2ND
CR
IS T
O M
AKE
LAYO
UT
AND
PAR
ASIT
IC L
OAD
ING
SYM
MET
RIC
AL
42 3
1CR
503
42 3
1CR
501
R51
1
R51
3
R52
7
R52
9
R52
6
R52
8
C50
3
C51
1
R524
C51
5R
522
R52
0
C51
4
R51
8
C51
6R
523
R52
1
R51
9
C51
3
64 2
31 T503
R51
6
R51
7
C50
9
C51
0
R51
45
43
2
1J5
03
54
32
1J5
04
1 3
6 4 52
T504
C51
2
TP50
2R
515
C50
6
R50
6
R50
5
R50
9C
507
R512
C50
8R
510
R50
7
R50
8
C50
56 42
3 1
T501
T502
R50
3C
501
R50
4
C50
4
C50
2 TP50
1
R50
15
43
2
1J5
01
54
32
1J5
02
R50
2
R52
5
C51
7
6
154
2
3
Y505
130
130
24.9
24.9
24.9
24.9
100DNI
100DNI
49.9 DN
I
49.9
DN
I49
.9
49.9
HM
PS-2
822-
BLK
3.3V
_CLK
0.1U
F
ENC
_A+
0.1U
F
XSTA
L_IN
+
ENC
_A-
XSTA
L_IN
-
0.1U
F
0.1U
F
0.1U
FD
NI
DN
I
ADT1
-1W
T+
0.1U
F
1000
PFM
ABA-
0071
59-0
0000
0
0.1U
F
DN
I
0.1U
F
0.1U
F BLK
0.1U
F
0.1U
F
1000
PF
XSTA
L_IN
-
XSTA
L_IN
+
ENC
_B+
ENC
_B-
DN
IAD
T1-1
WT+
HM
PS-2
822-
BLK
MAB
A-00
7159
-000
000
DN
I0.
1UF
DN
I
0.1U
F
0.1U
F BLK
0.1U
F
500M
EGH
Z
DN
I
DN
I
0
DN
I0
00
00
0
DN
I0
00
00
DN
I0
DN
I0
7575
1K
GN
D
GN
D
GN
D
GN
D
SEC
PRI
-(NC
)-
GN
D
GN
D
GN
D
GN
D
GN
D
SEC
PRI
-(NC
)-
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
Q_N
QVD
D
GN
D
NC
TRIS
TATE
Figure 17. Default Clock Path Input Circuits
UG-178 AD9284-250EBZ User Guide
Rev. A | Page 14 of 24
0922
8-01
8
0 AND 47
CH
AN
NE
L B
CH
AN
NE
L A
0 OHM RESISTOR NETWORK FOR LVDS MODE
0 AND 47
47 OHM RESISTOR NETWORK FOR CMOS MODE
DCO
152RN602
143RN602
134RN602
125RN602
116RN602
107RN602
R601
R602
98RN601
107RN601
98RN602
161RN602
116RN601
125RN601
134RN601
143RN601
152RN601
161RN601
0
DCO_A O_DCO_A
0
DCO_B O_DCO_B
0
D7A_D7P O_D7A
0
D6A_D7M O_D6A
0
D5A_D6P O_D5A
0
D4A_D6M O_D4A
0
D3A_D5P O_D3A
0
D2A_D5M O_D2A
0
D7B_D3P O_D7B
0
D0B_D0M O_D0B
0
D1A_D4P O_D1A
0
D0A_D4M O_D0A
0
D1B_D0P O_D1B
0
D2B_D1M O_D2B
0
D3B_D1P O_D3B
0
D4B_D2M O_D4B
0
D5B_D2P O_D5B
0
D6B_D3M O_D6B
Figure 18. Output Buffer Circuits
AD9284-250EBZ User Guide UG-178
Rev. A | Page 15 of 24
0922
8-01
9
C10C9C8C7C6C5C4C3C2C1
P1
D10D9D8D7D6D5D4D3D2D1
P1
B10B9B8B7B6B5B4B3B2B1
P1
A10A9A8A7A6A5A4A3A2A1
P1
BG10BG9BG8BG7BG6BG5BG4BG3BG2BG1
P2
DG10DG9DG8DG7DG6DG5DG4DG3DG2DG1
P2
C10C9C8C7C6C5C4C3C2C1
P2
D10D9D8D7D6D5D4D3D2D1
P2
A10A9A8A7A6A5A4A3A2A1
P2
B10B9B8B7B6B5B4B3B2B1
P2
BG10BG9BG8BG7BG6BG5BG4BG3BG2BG1
P1
DG10DG9DG8DG7DG6DG5DG4DG3DG2DG1
P1
O_DCO_B
O_D0B
O_D2B
O_D4B
O_D6B
O_D0A
O_D2A
O_D4A
O_DCO_A
O_D1B
O_D3B
O_D5B
O_D7B
O_D1A
O_D3A
SDIO_DUT_1P8SCLK_DUT_1P8
O_D5A
6469169-1
O_D6A
6469169-1
USB_CSB USB_SCLKUSB_SDIUSB_SDO
6469169-1
CSB_DUT_1P8
O_D7A
6469169-1
6469169-1
6469169-1
6469169-16469169-1
6469169-16469169-1
6469169-1
6469169-1GND
PLU
G H
EAD
ER
PLU
G H
EAD
ER
PLU
G H
EAD
ER
PLU
G H
EAD
ERPL
UG
HEA
DER
PLU
G H
EAD
ER
GND
PLU
G H
EAD
ER
PLU
G H
EAD
ER
PLU
G H
EAD
ER
PLU
G H
EAD
ER
PLU
G H
EAD
ER
PLU
G H
EAD
ER
GNDGND
Figure 19. FIFO Board Connector
UG-178 AD9284-250EBZ User Guide
Rev. A | Page 22 of 24
ORDERING INFORMATION BILL OF MATERIALS
Table 1. Qty Reference Designator Description Value Manufacturer/Part No. 1 Not applicable PCBZ 9284CE01A 15 C101, C102, C103, C105,
C106, C108, C110, C111, C113, C115, C116, C125, C127, C129, C417
Ceramic, 0805, X7R capacitor 10 µF Murata/GRM21BR70J106KE76L
3 C104, C117, C416 Ceramic, mono, 0402 capacitor 1 µF Murata/GRM155R60J105KE19D
4 C107, C109, C112, C114 Ceramic, 0805, X7R capacitor 1 µF Murata/GRM21BR71H105KA12L
18 C126, C128, C130, C225, C226, C301, C302, C401, C403, C404, C410, C411, C412, C502, C506, C507, C508, C510
Ceramic, +80/−20%, 16 V, Y5V, 0402 capacitor
0.1 µF Murata/GRM155F51C104ZA01D
11 C202, C204, C206, C208, C210, C212, C214, C216, C218, C220, C222
Ceramic, ±10%, 6.3 V, X5R, 0201 capacitor
0.1 µF Murata/GRM033R60J104KE19D
2 C406, C414 Ceramic, ±0.25 pF, 50 V, COG, 0402, capacitor
4.7 pF Murata/GRM1555C1H4R7CZ01D
1 C504 Ceramic, 50 V, 10%, X7R, 0402 capacitor
1000 pF Murata/GRM155R71H102KA01D
2 CR101, CR102 Recovery rectifier diode, DO214AA3 S2A-TP Micro Commercial Comp Corp/ S2A-TP
1 CR103 Green surface-mount 0603 LED LNJ308G8TRA (green) Panasonic/LNJ308G8TRA
1 CR501 RF Schottky diode, MINIPAK1412 HMPS-2822-BLK Avago/HSMS-2812BLK
7 E101, E102, E105, E107, E109, E111, E112
Inductor 0805 ferrite bead 100 MHz Panasonic/EXC-ML20A390U
1 F101 Fuse F1812 polyswitch PTC device 1.6 A Tyco Electronics/MINISMDC160F-2
1 FL101 Filter noise suppression LC combined type, FLBNX01
BNX016-01 Murata/BNX016-01
1 J101 PCB powerjack mini 0.08 in R/A T/H connector
PJ-102A CUI/PJ-102A
1 J102 PCB header 6 position connector Z5.530.3625.0 Wieland/Z5.530.3625.0
5 J103, J105, J106, J201, J202 PCB berg header ST male 3 position connector
TSW10608GS3PIN Samtec/TSW-103-08-G-S
3 J401, J404, J502 PCB SMA ST edge-mount connector SMA-J-P-X-ST-EM1 Samtec/SMA-J-P-X-ST-EM1
2 L101, L103 Shielded power inductors LSMSQ154H47
2.2 µH Coilcraft/LPS4012-222MLC
2 L102, L104 SMD L9075 inductor 110 nH Bourns/CW201212-R10J
2 P1, P2 PCB 60-pin RA connector CNTYCO1469169-1
6469169-1 Tyco Electronics/6469169-1
1 R101 1%, 1/16, SMD, 0402, thick film resistor
300 Ω Panasonic/ERJ-2RKF3000X
2 R102, R103 Precision thick film chip 0603 resistor 100 kΩ Panasonic/ERJ-3EKF1003V
2 R104, R105 Jumper SMD 0805 (SHRT) resistor 0 Ω Panasonic/ERJ-6GEYJ0.0
25 R405, R407, R408, R414, R415, R416, R417, R422, R424, R425, R431, R432, R433, R434, R449, R451, R504, R507, R508, R509, R510, R516, R517, R601, R602
Film SMD 0402 resistor 0 Ω Panasonic/ERJ-2GE0R00X
AD9284-250EBZ User Guide UG-178
Rev. A | Page 23 of 24
Qty Reference Designator Description Value Manufacturer/Part No. 4 R301, R306, R307, RBIAS Precision thick film chip R0402
resistor 10 kΩ Panasonic/ERJ-2RKF1002X
3 R302, R303, R305 Film SMD 0402 resistor 1.1 kΩ Panasonic/ERJ-2GEJ112X
3 R304, R308, R309 Precision thick film chip R0402 resistor
100 kΩ Panasonic/ERJ-2RKF1003X
2 R403, R421 Film SMD 0603 resistor 0 Ω Panasonic/ERJ-3GEY0R00V
8 R410, R411, R412, R413, R427, R428, R429, R430
Film SMD 0402 resistor 33 Ω Panasonic/ERJ-2GEJ330X
4 R438, R439, R440, R441 Precision thick film chip R0402 resistor
200 Ω Panasonic/ERJ-2RKF2000X
2 R505, R506 Precision thick film chip R0402 resistor
24.9 Ω Panasonic/ERJ-2RKF24R9X
2 RN601, RN602 Network 16-pin/8res RESNET16 surface-mount resistor
0 Ω Panasonic/EXB-2HVR000V
2 T401, T404 XFMR RF MINICD542 ADT1-1WT+ Minicircuits/ADT1-1WT+
1 T502 XFMR RF 1:1 (6-pin special) ETC1-6P MABA-007159-000000 Macom/MABA-007159-000000
1 U101 Compact, 600 mA, 3 MHz, TSOT-5, step-down dc-to-dc converter
ADP2108AUJZ-3.3-R7 Analog Devices/ ADP2108AUJZ-3.3-R7
1 U102 Compact, 600 mA, 3 MHz, TSOT-5, step-down dc-to-dc converter
ADP2108AUJZ-1.8-R7 Analog Devices/ ADP2108AUJZ-1.8-R7
1 U201 LFCSP analog-to-digital converter AD9284BCPZ-250 Analog Devices/ AD9284BCPZ-250
1 U301 IC SC70 tiny logic UHS dual buffer NC7WZ07P6X Fairchild/NC7WZ07P6X
1 U302 IC SC70 tiny logic UHS dual buffer NC7WZ16P6X Fairchild/NC7WZ16P6X
UG-178 AD9284-250EBZ User Guide
Rev. A | Page 24 of 24
NOTES
ESD Caution ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality.
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