Preliminary Technical Data

AD199x

Rev. PrA – 1/20/05 | Page 7 of 16

PIN CONFIGURATIONS AND FUNCTIONAL DESCRIPTIONS

Table 4. Pin Function Descriptions

LFCSP

Pin No.

PSOP

Pin No.

Name

In/Out

Description

1,2,3

3

PGND1

Negative power supply for high power transistors A2 and B2

4,5,6

2

OUTL+

O

Output of high power transistor pair, left channel positive polarity

7,8,9,10

1,36

PVDD1

Positive power supply for high power transistors, left channel high-side

11,12,13

35

OUTL-

O

Output of high power transistor pair, left channel negative polarity

14,15,16

34

PGND1

Negative power supply for high power transistors, left channel low-side

17

33

ERR2

O

Active low thermal shutdown error output

18

32

ERR1

O

Active low thermal warning error output

19

31

ERR0

O

Active low overcurrent error output

20

DCTRL2

I

Non-overlap time setting MSB

21

DCTRL1

I

Non-overlap time setting

22

DCTRL0

I

Non-overlap time setting LSB

23,26

29,30

DGND

Negative power supply for low power digital circuitry

24,25

28

DVDD

Positive power supply for low power digital circuitry

27

27

CLKI

I

28

26

CLKO

O

Inverted version of CLKI for use with external crystal oscillator

29

25

MUTE

I

Active low mute input

30

24

RST/PDN

I

Active low reset/power-down input

31

23

PGA1

I

Programmable gain amplifier (PGA) gain MSB

32

22

PGA0

I

Programmable gain amplifier (PGA) gain LSB

33,34,35

21

PGND2

Negative power supply for right channel high power transistors

36,37,38

20

OUTR-

O

Output of high power transistor pair, right channel negative polarity

39,40,41,42

18,19

PVDD2

Positive power supply for right channel high power transistors

43,44,45

17

OUTR+

O

Output of high power transistor pair, right channel positive polarity

46,47,48

16

PGND2

Negative power supply for right channel high power transistors

49

15

AGND

Negative power supply for low power analog circuitry

50

14

NFR+

I

Right channel negative feedback – positive input

51

13

NFR-

I

Right channel negative feedback – negative input

52

NC

Not Connected. This pin is not used and should be left floating

53

12

AINR

I

Analog input for right channel

54

NC

Not Connected. This pin is not used and should be left floating

55

11

REF_FILT

O

Filter pin for bandgap reference - should be bypassed to AGND

56

10

AGND

Negative power supply for low power analog circuitry

57

9

AVDD

Positive power supply for low power analog circuitry

58

NC

Not Connected. This pin is not used and should be left floating

59

NC

Not Connected. This pin is not used and should be left floating

60

8

AINL

I

Analog input for left channel

61

4

NC

Not Connected. This pin is not used and should be left floating

62

7

NFL-

I

Left channel negative feedback – negative input

63

6

NFL+

I

Left channel negative feedback – positive input

64

5

MONO

I

Mono mode (drive left and right output transistors from same modulator)