HD49334AF/AHF

Rev.1.0, Apr 20, 2004, page 8 of 22

6. ADC Digital Output Control Function

The ADC digital output includes the functions output enable, code conversion, and test mode. Tables 3, 4 and 5

show the output functions and the codes.

Table 3

ADC Digital Output Functions

Operating Mode

ADC Digital Output

Low-power wait state

Output Hi-Z

Normal operation

Pre-blanking

Normal operation

Pre-blanking

Test mode

Hi-Z

Hi-Z

Same as in table 4.

D9 is inverted in table 4.

D8 to D0 are inverted in table 4.

D9 to D0 are inverted in table 4.

Output code is set up to Clamp Level.

Same as in table 5.

D9 is inverted in table 5.

D8 to D0 are inverted in table 5.

D9 to D0 are inverted in table 5.

Output code is set up to Clamp Level.

Notes:

1. STBY, TEST, LINV, and MINV are set by register.

2. Mode setting for the OEB and the PBLK are done by external input pins.

3. The polarity of the PBLK pin when the register setting is SPinv is low.

X

X

H

H

H

H

L

H

H

H

H

L

X

X

X

X

H

L

H

L

L

L

H

H

H

H

L

L

L

L

H

H

H

H

L

L

L

L

H

H

H

H

L

L

L

L

H

H

H

H

L

L

L

L

H

H

X

X

L

H

L

H

X

L

H

L

H

X

L

H

L

H

X

X

L

L

H

H

X

L

L

H

H

X

L

L

H

H

X

X

L

H

X

X

X

L

H

X

H

L

H

L

D9

D0

D1

D2

D3

D4

D5

D6

D7

D8

Table 4

ADC Output Code

D1

H

L

L

H

H

L

L

L

H

H

D0

H

L

H

L

H

L

L

H

L

H

D2

L

H

H

H

H

L

H

H

H

H

D7

L

L

L

L

H

L

H

H

H

H

D5

L

L

L

L

H

L

H

H

H

H

D4

L

L

L

L

H

L

H

H

H

H

D3

L

L

L

L

H

L

H

H

H

H

D6

L

L

L

L

H

L

H

H

H

H

D8

L

L

L

L

H

L

H

H

H

H

D9

L

L

L

L

L

H

H

H

H

H

Output Pin

Output

codes

Steps

3

4

5

6

511

512

1020

1021

1022

1023

Table 5

ADC Output Code (TEST1)

D8

L

L

L

L

H

H

L

L

L

L

D9

L

L

L

L

L

H

H

H

H

H

Output Pin

Output

codes

Steps

3

4

5

6

511

512

1020

1021

1022

1023

D1

H

H

H

L

L

L

H

H

L

L

D0

L

L

H

H

L

L

L

H

H

L

D2

L

H

H

H

L

L

L

L

L

L

D7

L

L

L

L

L

L

L

L

L

L

D5

L

L

L

L

L

L

L

L

L

L

D4

L

L

L

L

L

L

L

L

L

L

D3

L

L

L

L

L

L

L

L

L

L

D6

L

L

L

L

L

L

L

L

L

L