-------------------------------------------------

-------------------------------------------------

+

ADC

OGND

6

5

DRIVER

12

OP AMPS

VRB VRM VRT

6-BIT

ADC

26

25

24

23

28

27

DA0

DA1

DA2

DA3

DA4

DA5

18

17

16

15

20

19

DB0

DB1

DB2

DB3

DB4

DB5

VINA

COMPA

VRB

VREF

1

CLKIN

+

ADC

11

10

DRIVER

VRB VRM VRT

6-BIT

VINB

COMPB

OUTPUTS

LATCHES

DATA

OUTPUTS

LATCHES

DATA

CLOCK

DRIVER

AGND

DGND

6

6

22

8

21

4

VRT

ADC

2

3

7

9

VRM

MP28

1

2

3

4

5

6

7

8

9

10

11

12

13

14

28

27

26

25

24

23

22

21

20

19

18

17

16

15

CLKIN

DGND

VRT

COMPA

VINA

AGND

VRM

COMPB

VINB

VRB

N.C.

N.C.

DA5

DA4

DA3

DA2

DA1

DA0

OGND

DB5

DB4

DB3

DB2

DB1

DB0

VP211

Fig.1 Pin connections - top view (wide body)

Fig.2 System block diagram

The VP211 is a dual 90MHz 6-bit Analog to Digital

Converter designed for use in consumer satellite receivers

and

decoders,

video

systems,

multimedia

and

communications applications.

Operating from a single +5V supply, the VP211 includes

an on-chip high bandwidth ADC driver amplifier, a 6-bit ADC

and digital I/O that can be interfaced to either +5V or +3V.

The VP211 also has the necessary bias voltages for the

reference resistor chain in the 'flash' architecture of the ADC.

FEATURES

s 90MHz Conversion Rate

s TTL Clock/Data Interface

s 2 Volt Analog Input Range

s Internal ADC Reference

s Digital I/O’s compatible with +5V or +3V logic

s Single 5 Volt Supply

s Dual ADC System for good channel matching

APPLICATIONS

s Satellite Decoders

s Multimedia

s Communications

ORDERING INFORMATION

VP211A CG MP1S (Commercial - 28 pin plastic SO)

VP211

Dual 90MHz 6-Bit Analog to Digital Converter

Preliminary Information

DS4476 - 1.1 May 1996