CXD2314R 데이터 시트보기 (PDF) - Sony Semiconductor

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CXD2314R

9-bit 20MSPS Video A/D Converter

Sony Semiconductor 

CXD2314R

Digital Output

The following table shows the correlation between the analog input voltage and the digital output code

(TESTMODE=1, LINV, MINV=0)

Input signal voltage

Step

Digital output code

MSB

LSB

VRT

0

111111111

255

100000000

256

011111111

VRB

511

000000000

The following table shows the output state for the combination of TESTMODE, LINV, and MINV states.

TESTMODE LINV MINV D0 D1 D2 D3 D4 D5 D6 D7 D8

1

0

0 PPPPPPPPP

1

1

0 NNNNNNNNP

1

0

1 PPPPPPPPN

1

1

1 NNNNNNNNN

0

0

0 010101010

0

1

0 101010100

0

0

1 010101011

0

1

1 101010101

P: Forward-phase output N: Inverted output

Timing Chart 1

tPW1

tPW0

Clock

1.65V

tSD

Analog input

N

tDL

Data output

N+1

N+2

N–3

N–2

N+3

N–1

N+4

N

Timing Chart 2

Output enable (OE)

1.65V (DVDD = 3.3V)

2.5V (DVDD = 5.0V)

: Indicates point at which analog data is sampled

tPEZ

1.65V

tPZE

1.65V

1.65V (DVDD = 3.3V)

2.5V (DVDD = 5.0V)

Data output

Active

High Impedance

–6–

Active

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