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

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

+

ADC

DGND

CLK

12

11

DRIVER

8

OP AMPS

VRB VRM VRT

6-BIT

ADC

40

39

38

37

42

41

DI0

DI1

DI2

DI3

DI4

DI5

31

32

33

34

29

30

DQ0

DQ1

DQ2

DQ3

DQ4

DQ5

AIN_I

COMP_I

VRB

VREF

25

27

20

21

CLKOUT

CLKIN

TANK

BIAS

19

22

+

ADC

16

15

DRIVER

VRB VRM VRT

6-BIT

AIN_Q

COMP_Q

OUTPUTS

LATCHES

DATA

OUTPUTS

LATCHES

DATA

SEL

CLOCK

DRIVER

CLOCK

BUFFER

VCO

&

XTAL

OSC.

AGND

AGND

AGC

6

6

35

36

6

VRT

CLKSEL

ADC

9,14,18,23

1,2

10,13,17,24

3,4

7

VRM

HP44

DQ5

DI2

DQ4

DI1

DGND

DI0

33

34

35

36

37

38

39

AGND3

AIN_I

VRM

VRB

AGND2

COMP_I

7

8

9

10

11

12

13

AGND4

AIN_Q

COMP_Q

14

15

16

17

DQ3

DQ2

DQ0

DQ1

29

30

31

32

Fig.1 Pin connections - top view

Fig.2 System block diagram

The VP216 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 VP216 includes

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

VCO or Ext. clock interface.

The VP216 also has the

necessary bias voltages for the reference resistor chain in

the 'flash' architecture of the ADC.

FEATURES

s 90MHz Conversion Rate

s VCO or Ext. Clock Interface

s High Bandwidth ADC Driver Amplifier

s Internal ADC Reference

s TTL Data Outputs

s Single 5 Volt Supply

s Dual ADC System for good channel matching

APPLICATIONS

s Satellite Decoders

s Multimedia

s Communications

ORDERING INFORMATION

VP216A CG HP1S (Commercial - 44 pin PLCC)

VP216

Dual 90MHz 6-Bit Analog to Digital Converter with VCO

Preliminary Information

DS4070 - 1.6 May 1996