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TDA8779H

10-bit converter interface (ADC/DAC) for quadrature transceiver

Philips Electronics 

Philips Semiconductors

10-bit converter interface (ADC/DAC) for

quadrature transceiver

Objective specification

TDA8779

PINNING

SYMBOL PIN

DESCRIPTION

AGND1 1 analog ground 1

DEC1

2 decoupling input 1

DEC2

3 decoupling input 2

INI

4 I channel ADC input

DEC3

5 decoupling input 3

INQ

6 Q channel ADC input

VCCA1

7 analog supply voltage 1 for ADC part

(+5 V)

VCCA2

8 analog supply voltage 2 for DAC part

(+5 V)

OUTI

9 I channel DAC analog output

DEC4

10 decoupling input 4

OUTQ

11 Q channel DAC analog output

DEC5

12 decoupling input 5

AGND2 13 analog ground 2

VCCD2

14 digital supply voltage 2 for DAC part

(+5 V)

D0D

15 multiplexed input for the DACs; bit 0

D1D

16 multiplexed input for the DACs; bit 1

D2D

17 multiplexed input for the DACs; bit 2

D3D

18 multiplexed input for the DACs; bit 3

D4D

19 multiplexed input for the DACs; bit 4

D5D

20 multiplexed input for the DACs; bit 5

D6D

21 multiplexed input for the DACs; bit 6

D7D

22 multiplexed input for the DACs; bit 7

D8D

23 multiplexed input for the DACs; bit 8

SYMBOL PIN

DESCRIPTION

D9D

24 multiplexed input for the DACs; bit 9

DGND2 25 digital ground 2

CLKD

26 transmission block clock

STDBYD 27 power standby for the DAC part

(active HIGH)

DGND1 28 digital ground 1

STDBYA 29 power standby for the ADC part

(active HIGH)

CLKA

30 reception block clock

VCCD1

31 digital supply voltage 1 for ADC part

(+5 V)

OE

32 ADCs digital output enable

(3-state output); (active LOW)

OGND

33 input/output ground

D0A

34 I and Q digital outputs; bit 0

D1A

35 I and Q digital outputs; bit 1

D2A

36 I and Q digital outputs; bit 2

D3A

37 I and Q digital outputs; bit 3

D4A

38 I and Q digital outputs; bit 4

D5A

39 I and Q digital outputs; bit 5

D6A

40 I and Q digital outputs; bit 6

D7A

41 I and Q digital outputs; bit 7

D8A

42 I and Q digital outputs; bit 8

D9A

43 I and Q digital outputs; bit 9

VCCO

44 output supply voltage (2.7 to 5.5 V)

1996 Sep 18

4

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