1996 Feb 21

13

Philips Semiconductors

Product specification

3.3 V, 25 MHz 8-bit

analog-to-digital converter (ADC)

TDA8792

APPLICATION INFORMATION

Fig.12 Application diagram.

The analog and digital supplies should be separated and decoupled.

The external voltage generator must be built such that a good supply voltage ripple rejection is achieved with respect to the LSB value. The reference

(pin 5) through a resistor. The values must be defined in accordance with the input signal frequency in order to avoid direct coupling into the ADC ladder

(e.g. R = 5 k

Ω and C = 100 nF).

handbook, full pagewidth

24

23

22

21

20

19

18

17

16

15

14

13

TDA8792

1

2

3

4

5

6

7

8

9

10

11

12

MLD128 - 1

100 nF

100 nF

100 nF

(1)

(1)

(1)

(2)

CLK

V

STDBY

V

n.c.

D1

D7

D6

D5

D4

D3

D2

D0

OE

V

I bias

VRM

V RB

VRT

DDD

VSSD2

V

SSA1

V

SSA2

V

DDA

V

I

SSO

DDO

3.3 V

100 nF

100 nF

100 nF

22 k

Ω

3.3 V

3.3 V

3.3 V