Alinx AN8238 Panduan Pengguna - Halaman 8

Jelajahi secara online atau unduh pdf Panduan Pengguna untuk Unit Kontrol Alinx AN8238. Alinx AN8238 17 halaman. 2-channel high speed ad module

2-Channel High Speed AD Module AN9238 User Manual

In the module circuit design, the VREF value of AD9238 is 1V, so the final

analog signal input and AD conversion data are as follows

AD Analog

AD8065 Operational

Input Value

Amplifier Output

-5 V

0 V

+5 V

From the table, we can see that the digital value converted by AD9238 is

the smallest when -5V is input, and the digital value converted by AD9238 is the

largest when it is +5V.

Part 2.6: AN9238 Digital Output Timing

The digital output of AD9238 dual-channel AD is +3.3VCMOS output mode,

2 channels (A and B) independent data and clock. AD data converts data on the

rising and falling edges of the clock, and the FPGA end can sample the AD data

with the AD clock.

8/17

AD8138 Differential

Output (VIN+−VIN−)

-1 V

0 V

+1 V

AD9238 Digital

-1 V

000000000000

0 V

100000000000

+1 V

11111111111

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Output