AD9222-65EBZ Analog Devices Inc, AD9222-65EBZ Datasheet - Page 34

• Manufacturer Part Number: AD9222-65EBZ
• Description: Octal 12 Bit, 65 MSPS Serial LVDS ADC EB
• Manufacturer: Analog Devices Inc

Specifications of AD9222-65EBZ

• Number Of Adc's: 8
• Number Of Bits: 12
• Sampling Rate (per Second): 65M
• Data Interface: Serial
• Inputs Per Adc: 2 Single
• Input Range: 2 Vpp
• Power (typ) @ Conditions: 910mW @ 65MSPS
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: AD9222
• Kit Application Type: Data Converter
• Application Sub Type: ADC
• Features: Serial LVDS, Data And Frame Clock Outputs, 325MHz Full-power Analog Bandwidth
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD9222
HARDWARE INTERFACE
The pins described in Table 14 compose the physical interface
between the user’s programming device and the serial port of
the AD9222. The SCLK and CSB pins function as inputs when
using the SPI. The SDIO pin is bidirectional, functioning as an
input during write phases and as an output during readback.
If multiple SDIO pins share a common connection, care should
be taken to ensure that proper V
same load for each AD9222, Figure 83 shows the number of SDIO
pins that can be connected together and the resulting V
1.800
1.795
1.790
1.785
1.780
1.775
1.770
1.765
1.760
1.755
1.750
1.745
1.740
1.735
1.730
1.725
1.720
1.715
0
10
NUMBER OF SDIO PINS CONNECTED TOGETHER
20
Figure 83. SDIO Pin Loading
30
40
OH
50
levels are met. Assuming the
60
70
80
90
OH
100
level.
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This interface is flexible enough to be controlled by either serial
PROMS or PIC mirocontrollers, providing the user with an
alternative method, other than a full SPI controller, to program
the ADC (see the AN-812 Application Note).
If the user chooses not to use the SPI, these dual-function pins
serve their secondary functions when the CSB is strapped to
AVDD during device power-up. See the Theory of Operation
section for details on which pin-strappable functions are
supported on the SPI pins.