TDA8761A Просмотр технического описания (PDF) - Philips Electronics

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TDA8761A

9-bit analog-to-digital converter for digital video

Philips Electronics 

Philips Semiconductors

9-bit analog-to-digital converter

for digital video

Product specification

TDA8761A

Table 1 Output coding and input voltage (typical values; referenced to AGND, VRB = 1.3 V, VRT = 3.43 V)

BINARY OUTPUT BITS

TWO’S COMPLEMENT OUTPUT BITS

STEP VI(p-p) IR

D8 D7 D6 D5 D4 D3 D2 D1 D0 D8 D7 D6 D5 D4 D3 D2 D1 D0

U/F <1.46 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0

0

1.46 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0

1

.

1 0 0 0 0 0 0 0 0 1 100000001

.

.

. . . . . . . . . . .........

.

.

. . . . . . . . . . .........

510 .

1 1 1 1 1 1 1 1 1 0 011111110

511 3.27 1 1 1 1 1 1 1 1 1 0 0 1 1 1 1 1 1 1 1

O/F >3.27 0 1 1 1 1 1 1 1 1 0 0 1 1 1 1 1 1 1 1

Table 2 Mode selection

TC

X

0

1

OE

1

0

0

D8 to D0

high impedance

active; two’s complement

active; binary

IR

high impedance

active

active

handbook, full pagewidth

tCPH

t CPL

CLK

sample N

sample N + 1 sample N + 2

VCCD

50%

0V

Vl

DATA

D0 to D8

t ds

DATA

N-2

DATA

N-1

td

th

DATA

N

DATA

N+1

VCCO

50%

0V

MBG908

1998 Nov 03

Fig.4 Timing diagram.

11

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