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參數(shù)資料
| 型號： | AD962711-105EBZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 43/72頁 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION AD9627 105MSPS |
| 標(biāo)準包裝： | 1 |
| ADC 的數(shù)量： | 2 |
| 位數(shù)： | 11 |
| 采樣率（每秒）： | 105M |
| 數(shù)據(jù)接口： | 串行 |
| 輸入范圍： | 1 ~ 2 Vpp |
| 在以下條件下的電源（標(biāo)準）： | 600mW @ 105MSPS |
| 工作溫度： | -40°C ~ 85°C |
| 已用 IC / 零件： | AD962711 |
| 已供物品： | 板 |
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AD9627-11
Rev. B | Page 48 of 72
EVALUATION BOARD
The AD9627-11 evaluation board provides all of the support
circuitry required to operate the ADC in its various modes and
configurations. The converter can be driven differentially through
a double balun configuration (default) or optionally through the
AD8352 differential driver. The ADC can also be driven in a
single-ended fashion. Separate power pins are provided to isolate
the DUT from the AD8352 drive circuitry. Each input
configuration can be selected by proper connection of various
typical bench characterization setup used to evaluate the ac
performance of the AD9627-11.
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 converter. Proper filtering of the
analog input signal to remove harmonics and lower the integrated
or broadband noise at the input is also necessary to achieve the
specified noise performance.
See Figure 73 to Figure 90 for the complete schematics and
layout diagrams that demonstrate the routing and grounding
techniques that should be applied at the system level.
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 240 V ac wall outlet at 47 Hz
to 63 Hz. The output of the supply is a 2.1 mm inner diameter
circular jack that connects to the PCB at J16. Once on the PC
board, the 6 V supply is fused and conditioned before connection
to five low dropout linear regulators that supply the proper bias
to each of the various sections on the board.
External supplies can be used to operate the evaluation board
by removing L1, L3, L4, and L13 to disconnect the voltage
regulators supplied from the switching power supply. This enables
the user to individually bias each section of the board. Use P3
and P4 to connect a different supply for each section. At least
one 1.8 V supply is needed with a 1 A current capability for
AVDD and DVDD; a separate 1.8 V to 3.3 V supply is recom-
mended for DRVDD. To operate the evaluation board using the
AD8352 option, a separate 5.0 V supply (AMP_VDD) with
a 1 A current capability is needed. To operate the evaluation board
using the alternate SPI options, a separate 3.3 V analog supply
(VS) is needed, in addition to the other supplies. The 3.3 V
supply (VS) should have a 1 A current capability, as well. Solder
Jumper SJ35 allows the user to separate AVDD and DVDD,
if desired.
INPUT SIGNALS
When connecting the clock and analog source, use clean signal
generators with low phase noise, such as the Rohde & Schwarz
SMA100A signal generators or the equivalent. Use 1 m long,
shielded, RG-58, 50 Ω coaxial cable for making connections to
the evaluation board. Enter the desired frequency and amplitude
for the ADC. The AD9627-11 evaluation board from Analog
Devices, Inc., can accept a ~2.8 V p-p or 13 dBm sine wave input
for the clock. When connecting the analog input source, it is
recommended that a multipole, narrow-band, band-pass filter
with 50 Ω terminations be used. Band-pass filters of this type
are available from TTE, Allen Avionics, and K&L Microwave, Inc.
Connect the filter directly to the evaluation board, if possible.
OUTPUT SIGNALS
The parallel CMOS outputs interface directly with the Analog
Devices standard ADC data capture board (HSC-ADC-EVALCZ).
For more information on the ADC data capture boards and
their optional settings, visit www.analog.com/FIFO.
USB
CONNECTION
AD9627-11
EVALUATION BOARD
11-BIT
PARALLEL
CMOS
11-BIT
PARALLEL
CMOS
HSC-ADC-EVALCZ
FPGA BASED
DATA
CAPTURE BOARD
PC RUNNING
VISUAL ANALOG
AND SPI
CONTROLLER
SOFTWARE
1.8V
–+
AV
DD
I
N
VS
DRV
D
I
N
GN
D
GN
D
–+
5.0V
GN
D
AM
P
V
DD
3.3V
6V DC
2A MAX
WALL OUTLET
100V TO 240V AC
47Hz TO 63Hz
SWITCHING
POWER
SUPPLY
–+
GN
D
3.3V
VC
P
–+
GN
D
3.3V
SPI
07
05
4-
07
2
ROHDE & SCHWARZ,
SMA100A,
2V p-p SIGNAL
SYNTHESIZER
CLK
ROHDE & SCHWARZ,
SMA100A,
2V p-p SIGNAL
SYNTHESIZER
AINB
BAND-PASS
FILTER
ROHDE & SCHWARZ,
SMA100A,
2V p-p SIGNAL
SYNTHESIZER
AINA
BAND-PASS
FILTER
Figure 72. Evaluation Board Connection
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