AD9261 Analog Devices, AD9261 Datasheet - Page 24

• Manufacturer Part Number: AD9261
• Description: 16-Bit, 10 MHz Bandwidth, 30 MSPS to 160 MSPS Continuous Time Sigma-Delta ADC
• Manufacturer: Analog Devices

Specifications of AD9261

• Resolution (bits): 16bit
• # Chan: 1
• Sample Rate: 160MSPS
• Interface: Par
• Analog Input Type: Diff-Uni
• Ain Range: 2 V p-p
• Adc Architecture: Sigma-Delta
• Pkg Type: CSP

AD9261
HARDWARE INTERFACE
The pins described in Table 21 comprise the physical interface
between the programming device of the user and the serial port
of the AD9261. The SCLK and CSB pins function as inputs
when using the SPI interface. The SDIO pin is bidirectional,
functioning as an input during write phases and as an output
during readback.
The SPI interface is flexible enough to be controlled by either
PROM or PIC microcontrollers. This provides the user with the
ability to use an alternate method to program the ADC. One
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such method is described in detail in the AN-812 Application
Note, MicroController-Based Serial Port Interface (SPI) Boot
Circuit.
When the SPI interface is not used, some pins serve a dual
function. When strapped to AVDD or ground during device
power-on, the pins are associated with a specific function.