LTC2203 데이터 시트보기 (PDF) - Linear Technology

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LTC2203

16-Bit, 25Msps/10Msps ADCs

Linear Technology 

LTC2203/LTC2202

APPLICATIONS INFORMATION

Output Driver Power

Separate output power and ground pins allow the output

drivers to be isolated from the analog circuitry. The power

supply for the digital output buffers, OVDD, should be tied

to the same power supply as for the logic being driven. For

example, if the converter is driving a DSP powered by a

1.8V supply, then OVDD should be tied to that same 1.8V

supply. In CMOS mode OVDD can be powered with any

logic voltage up to 3.6V. OGND can be powered with any

voltage from ground up to 1V and must be less than OVDD.

The logic outputs will swing between OGND and OVDD.

PC BOARD

LTC2203/

LTC2202

CLKOUT

FPGA

OF

D15/D0

D14/D0

D2/D0

D1/D0

D0

D15

D14

•

•

•

D2

D1

D0

22032 F12

Figure 11. Descrambling a Scrambled Digital Output

22032fd

25

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