參數(shù)資料
型號(hào): EVAL-AD7671CB
廠商: Analog Devices, Inc.
英文描述: Evaluation Board AD766X/AD767X
中文描述: 評(píng)估板AD766X/AD767X
文件頁(yè)數(shù): 3/15頁(yè)
文件大小: 1841K
代理商: EVAL-AD7671CB
REV PrK
–3–
EVAL-AD766XCB/AD767XCB
PRELIMINARY TECHNICAL DATA
TABLE II. JUMPER DESCRIPTION
Jumper
Designation with the control
board ( Factory
settings)
Default position
Function
Figure 10 is the FFT Screen, which performs an FFT on the
captured data, computes the Signal-to-Noise Ratio (SNR),
Signal-to-Noise-plus-Distortion (SINAD) and total-Har-
monic-Distortion (THD). Figure 11 is the time domain
representation of the output. When the on-board
generation is used, a synchronous FFT could be achieved by
synchronizing the external AC generator with the Fsync signal
(TP11) which is an exact division by 2 of MCLK.
Software Installation
- Double-Click on Setup.exe from the CD-ROM and follow the
installation instructions.
NOTE: The software runs under Windows 95/98 only.
JP1
A
Selection of the positive supply of the front-end amplifier U6. When JP1 is in posi-
tion A, the +12V supply from the control board is applied to JP3 otherwise VS+ on
SJ3 is used.
JP2
A
Selection of the negative supply of the front-end amplifier U6. When JP2 is in posi-
tion A, the -12V supply from the control board is applied to JP4 otherwise VS- on
SJ3 is used.
JP3
A
Selection of the positive supply of the front-end amplifier U6. When JP3 is in posi-
tion A, the +5V supply from the control board is used otherwise JP1 output is used.
JP4
A
Selection of the negative supply of the front-end amplifier U6. When JP4 is in posi-
tion A, the -5V supply from the control board is used otherwise JP2 output is used.
JP5
not A
Selection of the master clock MCLK signal. When JP5 is in position A, the signal on
J4 is used otherwise the on-board 20 MHz clock is used as a MCLK signal. MCLK
signal is used to generate the on-board
SCLK.
signal and the external serial clock
JP6
A, U3 side
Selection of RDC ( Read during convert ). When the button of the switch is close to
J4 connector ( not A position ) and when the serial reading mode is selected, the data
are read during conversion otherwise the data are read after conversion. JP6 has no
use in parallel reading mode.
JP7
A, U3 side
Selection of PD ( Powerdown ). When the button of the switch is close to J4 connec-
tor ( not A position ), the ADC is in power-down mode.
JP8
A, U3 side
Spare switch.
JP9
A, U3 side
Selection of RESET. When the button of the switch is close to J4 connector ( not A
position ), the ADC is reset.
JP10
A, U3 side
Selection of SER/
is close to J4 connector ( not A position ), the data are read in serial mode otherwise
the data are read in parallel mode.
( serial/parallel reading mode ). When the button of the switch
JP11
not A, SJ4 side
Selection of OC/
( not A position ), the ADC uses a straight binary coding otherwise the twos comple-
ment coding is used.
( coding ). When the button of the switch is close to J4 connector
JP12
A, U3 side
Selection of WARP. When the button of the switch is close to J4 connector ( not A
position ), the ADC uses the WARP mode which is the fastest one. With the AD7660,
JP12 is a spare switch.
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